40 results on '"monegros"'
Search Results
2. Relict periglacial soils on Quaternary terraces in the Central Ebro Basin (NE Spain).
- Author
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Rodríguez‐Ochoa, Rafael, Olarieta, José R., Santana, Asier, Castañeda, Carmen, Calle, Mikel, Rhodes, Ed, Bartolomé, Miguel, Peña‐Monné, José L., and Sancho, Carlos
- Subjects
SOIL profiles ,SOILS ,ALLUVIUM ,SOIL horizons ,CAP rock ,STONE - Abstract
Pedofeatures associated with ancient cold climatic conditions have been recognized in soils on terraces in the Monegros area (central Ebro Basin, Spain), at a latitude of 41°49′N and an altitude of 300 m a.s.l. Eleven soil profiles were described on fluvial deposits corresponding to the most extensive terrace (T5) of the Alcanadre River, Middle Pleistocene in age (MIS8–MIS7). Each soil horizon was sampled for physical, chemical, mineralogical and micromorphological analyses. Macromorphological features related to pedocryogenic processes were described: involutions, jacked stones, shattered stones, detached and vertically oriented carbonatic pendents, fragmented carbonatic crusts, laminar microstructures, succitic fabric, silt cappings on rock fragments and aggregates, and irregular, broken, discontinuous and deformed gravel and sandy pockets. Accumulations of Fe–Mn oxides, dissolution features on the surface of carbonatic stones, and calcitic accumulations were identified related to vadose–phreatic conditions. The observed periglacial features developed under cold environmental conditions in exceptional geomorphic and hydrological conditions. This soil information may have potential implications in studies of paleoclimate in the Ebro Valley as well as in other Mediterranean areas. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
3. Modernization of new irrigated lands in a scenario of increasing water scarcity: from large reservoirs to small ponds
- Author
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W. Jlassi, E. Nadal-Romero, and J. M. García-Ruiz
- Subjects
irrigated land ,irrigation modernization ,reservoirs ,water ponds ,monegros ,spain ,Geography (General) ,G1-922 - Abstract
Large rainfed, dryland areas were transformed into irrigated land in northeast Spain, where rivers from the Pyrenees Range ensure the availability of abundant water resources. The transformation of the Riegos del Alto Aragón area (RAA), mainly during the second half of the 20th century, was subject to major problems during the 1960s and 1970s, including monoculture of poorly productive winter cereals, water wastage, and soil degradation. Since the 1990s the RAA has been affected by modernization involving: (i) a change in the mode of irrigation, from gravity to sprinkler systems; (ii) the concentration of plots to enlarge the size of irrigated fields; and (iii) the introduction of more productive and highly water-consuming crops (corn, lucerne, vegetables). These changes coincided with enlargement of the irrigated area, increasing water demand at a time of increasing water scarcity because of restriction on the construction of new large reservoirs and declining water resources, because of climate and land use changes. Addressing this major problem has required new strategies, specifically the construction of small reservoirs and water ponds within the irrigated area. The ponds increase water reserves and facilitate sprinkling irrigation by adding pressure to the system. However, this has involved a huge rise in electricity consumption, which has increased the cost of production.
- Published
- 2016
- Full Text
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4. Investigating Soils for Agri-Environmental Protection in an Arid Region of Spain
- Author
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Castaneda, C., Mendez, S., Herrero, J., Betran, J., Zdruli, Pandi, editor, Pagliai, Marcello, editor, Kapur, Selim, editor, and Faz Cano, Angel, editor
- Published
- 2010
- Full Text
- View/download PDF
5. Interacciones montaña-llanura frente al cambio global: desafíos y oportunidades en la gestión del territorio y de los recursos hídricos en Riegos del Alto Aragón
- Author
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Beguería, Santiago, Haro-Monteagudo, David, Palazón, Leticia, and García-Ruiz, José M.
- Subjects
New irrigated land ,Nuevos regadíos ,Monegros ,reservoirs ,snow ,water resources ,modernización de riego ,recursos hídricos ,embalses ,Riegos del Alto Aragón ,Global Change ,irrigation modernization ,nieve ,Cambio Global - Abstract
The transformation of rainfed agriculture lands into irrigated lands in the central sector of the Ebro Depression has represented a spectacular change in the cultivation conditions of a semi-arid territory affected by scarce and irregular precipitation. However, the new irrigation systems faced serious structural problems from the beginning due to the peculiar design of the irrigation system, the limitations of its objectives, the slow pace with which the infrastructures were built (reservoirs, canals and secondary ditches) and the conditioning of cultivated fields. This work focuses on the study of the limitations faced byRiegos del Alto Aragóndue to the trend shown by water resources and their seasonal distribution as a result of the evolution of temperature and precipitation, the expansion of woody vegetation in mountain areas and the progressive silting up of the reservoirs. For this, the information available on Global Change in the Pyrenees has been reviewed and climatic and hydrological models have been applied. The necessary modernization has improved the irrigation systems and water use efficiency, and has allowed the expansion of much more productive and profitable crops. Paradoxically, modernization has also increased the water demand, and has made necessary to increase the system’s internal reserves through the construction of small reservoirs and ponds. This greater water demand coincides with a decreasing trend in water resources availability, due not only to the increase in average temperature, but also to changes in snowpack accumulation and melting dynamics in the Pyrenean headwaters and to forest expansion in old abandoned fields in the Pyrenean valleys, which reduces runoff generation and streamflow. It is foreseeable that most of these processes will continue or even accentuate in the medium- to long-term due to climate change. In addition, the progressive silting up of the reservoirs reduces the water storage capacity year after year. These processes, which highlight the interactions between mountain areas and the lowlands, will force in the medium term to reorganize the management of resources and irrigation procedures, as well as the progressive incorporation of crops with increasing added value that offset the rise in production costs linked to a stronger dependence of irrigation with respect to energy., La transformación del secano en regadío en el sector central de la Depresión del Ebro ha representado un cambio espectacular en las condiciones de cultivo de un territorio de características semiáridas y precipitaciones muy irregulares. Sin embargo, los nuevos regadíos se enfrentaron desde un principio a graves problemas estructurales debido al peculiar diseño del sistema de regadío, las limitaciones de sus objetivos, la lentitud con que se fueron construyendo las infraestructuras necesarias (embalses, canales y acequias secundarias) y el acondicionamiento de los campos de cultivo. Este trabajo se centra en el estudio de las limitaciones a que se enfrentan los regadíos de Riegos del Alto Aragón (R.A.A.) debido a la tendencia que muestran los recursos hídricos y su distribución estacional como consecuencia de la evolución de temperaturas y precipitaciones, la expansión de la superficie forestal y de matorrales en áreas de montaña y el progresivo aterramiento a que se enfrentan los embalses. Para ello se ha revisado la información disponible sobre el Cambio Global en el Pirineo y se han aplicado diversos modelos climáticos e hidrológicos. La necesaria modernización ha mejorado los sistemas de riego, ha incrementado la eficiencia en el uso de los recursos hídricos, y ha permitido la introducción de nuevos cultivos mucho más productivos y rentables. Paradójicamente, la modernización también ha conllevado un aumento del consumo de agua y ha obligado a incrementar las reservas internas del sistema mediante la construcción de pequeños embalses y balsas. Esta mayor demanda de agua coincide con una progresiva reducción en la disponibilidad de recursos hídricos, debida no solo al incremento de la temperatura media sino también a los cambios en la dinámica de la acumulación y fusión de nieve en alta montaña y a la expansión de bosques y matorrales en antiguos campos de cultivo abandonados en los valles pirenaicos, lo que reduce la capacidad de generación de escorrentía y los caudales fluviales. Se prevé que estas tendencias se acentúen en el medio y largo plazo como consecuencia del cambio climático. Además, el progresivo aterramiento de los embalses reduce año tras año la capacidad de almacenamiento de agua. Estos procesos, que ponen de manifiesto la importancia de las interacciones entre las áreas de montaña y las regiones de piedemonte, obligarán a medio plazo a reorganizar la gestión de los recursos y de los procedimientos de regadío, así como la progresiva incorporación de cultivos de mayor valor añadido que compensen el incremento de los costes de producción ligados a una mayor dependencia de los regadíos respecto de la energía.
- Published
- 2022
- Full Text
- View/download PDF
6. Robres: la experiencia de recrear un campamento republicano en los Monegros
- Abstract
La recreació històrica és una manera molt atractiva de posar en valor el patrimoni del món rural. Tot i això, la recreació històrica de la Guerra Civil Espanyola té una sèrie de problemes estructurals que cal tenir en compte a l'hora de dissenyar un esdeveniment, perquè sigui didàctic i transmeti el coneixement de manera òptima. El següent article és l'anàlisi d'un exemple pràctic portat a un poble de la comarca dels Monegres, des de la fase inicial fins a les conclusions finals., Historical re-enactment is a very appealing way of highlighting the heritage of the rural world. However, the historical re-enactment of the Spanish Civil War has a series of structural problems that must be taken into account when designing an event, so that it is didactic and transmits knowledge in an optimal way. The following article is an analysis of a practical example carried out in a village in the region of los Monegros, from the initial phase to the final conclusions., La recreación histórica es una forma muy atractiva de poner en valor el patri-monio del mundo rural. Sin embargo, la recreación histórica de la Guerra Civil Española tiene una serie de problemas estructurales que hay que tener en cuenta a la hora de dise-ñarun evento, para que sea didáctico y transmita el conocimiento de manera óptima. El siguiente artículo es el análisis de un ejemplo práctico llevado en un pueblo de la comarca de los Monegros, desde su fase inicial hasta las conclusiones finale
- Published
- 2022
7. Interacciones montaña-llanura frente al cambio global: desafíos y oportunidades en la gestión del territorio y de los recursos hídricos en Riegos del Alto Aragón
- Author
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European Commission, Fundación Biodiversidad, Ministerio para la Transición Ecológica y el Reto Demográfico (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Beguería, Santiago [0000-0002-3974-2947], Haro-Monteagudo, David [0000-0002-7885-8248], Palazón Tabuenca, Leticia [0000-0002-5773-1723], García-Ruiz, José María [0000-0002-8535-817X], Beguería, Santiago, Haro-Monteagudo, David, Palazón Tabuenca, Leticia, García-Ruiz, José María, European Commission, Fundación Biodiversidad, Ministerio para la Transición Ecológica y el Reto Demográfico (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Beguería, Santiago [0000-0002-3974-2947], Haro-Monteagudo, David [0000-0002-7885-8248], Palazón Tabuenca, Leticia [0000-0002-5773-1723], García-Ruiz, José María [0000-0002-8535-817X], Beguería, Santiago, Haro-Monteagudo, David, Palazón Tabuenca, Leticia, and García-Ruiz, José María
- Abstract
[ES] La transformación del secano en regadío en el sector central de la Depresión del Ebro ha representado un cambio espectacular en las condiciones de cultivo de un territorio de características semiáridas y precipitaciones muy irregulares. Sin embargo, los nuevos regadíos se enfrentaron desde un principio a graves problemas estructurales debido al peculiar diseño del sistema de regadío, las limitaciones de sus objetivos, la lentitud con que se fueron construyendo las infraestructuras necesarias (embalses, canales y acequias secundarias) y el acondicionamiento de los campos de cultivo. Este trabajo se centra en el estudio de las limitaciones a que se enfrentan los regadíos de Riegos del Alto Aragón (R.A.A.) debido a la tendencia que muestran los recursos hídricos y su distribución estacional como consecuencia de la evolución de temperaturas y precipitaciones, la expansión de la superficie forestal y de matorrales en áreas de montaña y el progresivo aterramiento a que se enfrentan los embalses. Para ello se ha revisado la información disponible sobre el Cambio Global en el Pirineo y se han aplicado diversos modelos climáticos e hidrológicos. La necesaria modernización ha mejorado los sistemas de riego, ha incrementado la eficiencia en el uso de los recursos hídricos, y ha permitido la introducción de nuevos cultivos mucho más productivos y rentables. Paradójicamente, la modernización también ha conllevado un aumento del consumo de agua y ha obligado a incrementar las reservas internas del sistema mediante la construcción de pequeños embalses y balsas. Esta mayor demanda de agua coincide con una progresiva reducción en la disponibilidad de recursos hídricos, debida no solo al incremento de la temperatura media sino también a los cambios en la dinámica de la acumulación y fusión de nieve en alta montaña y a la expansión de bosques y matorrales en antiguos campos de cultivo abandonados en los valles pirenaicos, lo que reduce la capacidad de generación de escorrentía y, [EN] The transformation of rainfed agriculture lands into irrigated lands in the central sector of the Ebro Depression has represented a spectacular change in the cultivation conditions of a semi-arid territory affected by scarce and irregular precipitation. However, the new irrigation systems faced serious structural problems from the beginning due to the peculiar design of the irrigation system, the limitations of its objectives, the slow pace with which the infrastructures were built (reservoirs, canals and secondary ditches) and the conditioning of cultivated fields. This work focuses on the study of the limitations faced by Riegos del Alto Aragón due to the trend shown by water resources and their seasonal distribution as a result of the evolution of temperature and precipitation, the expansion of woody vegetation in mountain areas and the progressive silting up of the reservoirs. For this, the information available on Global Change in the Pyrenees has been reviewed and climatic and hydrological models have been applied. The necessary modernization has improved the irrigation systems and water use efficiency, and has allowed the expansion of much more productive and profitable crops. Paradoxically, modernization has also increased the water demand, and has made necessary to increase the system’s internal reserves through the construction of small reservoirs and ponds. This greater water demand coincides with a decreasing trend in water resources availability, due not only to the increase in average temperature, but also to changes in snowpack accumulation and melting dynamics in the Pyrenean headwaters and to forest expansion in old abandoned fields in the Pyrenean valleys, which reduces runoff generation and streamflow. It is foreseeable that most of these processes will continue or even accentuate in the medium- to long-term due to climate change. In addition, the progressive silting up of the reservoirs reduces the water storage capacity year after year. The
- Published
- 2022
8. Evolución geoquímica de las salmueras de las Lagunas de Monegros (Zaragoza, España) y análisis del equilibrio de la halita
- Author
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I. Garcés, J. M. Tena, L. Auqué, J. Mandado, and M. J. Gimeno
- Subjects
salmueras ,lagunas ,monegros ,evaporación ,suavizado polinomial ,modelización geoquímica ,halita ,indice de saturación ,actividad ,Geology ,QE1-996.5 - Abstract
El análisis estadístico de los datos geoquímicos de concentración en una serie de muestras recogidas durante un período superior a un año en la laguna de La Playa en Los Monegros (Zaragoza), ha mostrado discontinuidades representativas de la falta de demuestre en la serie evaporativa. Sin embargo, el análisis de tendencias mediante suavizados polinómicos permite reconocer la evolución de las concentraciones y a partir de ellas comprobar la regla de la divisoria química (o de las T) al producirse la separación de fases sólidas. El estudio de modelización fisicoquímica por la aplicación de los códigos WATEQ4F Y SOLMINEQ.88 para el análisis de la evolución de las actividades de Na+ y Cl- y el grado de saturación en halita, muestra claramente las diferencias de valores en función del método de cálculo de los coeficientes de actividad. El resultado final es que para estas salmueras, de muy elevadas FI, solamente la utilización de la formulación de Pitzer (en la opción de SOLMINEQ.88 sin especies neutras) proporciona una adecuada aproximación a la realidad, si bien la utilización de Debye-Hückel ampliada en D presenta, en este caso concreto, una resolución no excesivamente deficiente.
- Published
- 1992
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- View/download PDF
9. Variación de los índices de saturación en función del calculo de coeficientes de actividad. su aplicación a las fases mineralogicas de las lagunas de Monegros (Zaragoza, España)
- Author
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L. Garcés, J. M. Tena, L. Auqué, M. J. Gimeno, and J. Mandado
- Subjects
salmueras ,lagunas ,monegros ,modelización geoqufmica ,fuerzas iónicas ,actividad ,indice de saturación ,Geology ,QE1-996.5 - Abstract
La aplicación de los códigos de especiación WATEQ4F y SOLMINEQ.88 a los datos del sistema natural de la laguna de La Playa en Los Monegros (Zaragoza) proporcionados por autores previos, ha servido para contrastar distintas opciones de cálculo. Como era de esperar, el aumento de la Fuerza Iónica con el avance de la evaporación proporciona un incremento de la actividad de las especies disueltas (y una disminución de la del agua) sea cual sea la opción escogida, aunque existen notorias diferencias y singularidades. Los Indices de Saturación de las especies minerales presentes en el sistema (calcita, dolomita, yeso, anhidrita, thenardita y halita) muestran que la espectacular precipitación de sales observada en el fondo de las lagunas sólo se consigue, de acuerdo con la serie de desmuestre tratada, cuando la evaporación está ya bastante avanzada y con Fuerzas Iónicas mayores de 3. De todas las opciones de cálculo analizadas, la que proporciona unos resultados más acordes con lo observado en el medio natural es la correspondiente al SOLMINEQ.88 con el desarrollo de ecuaciones de Pitzer, aunque también el WATEQ4F muestra concordancias en cuanto a las tendencias.
- Published
- 1991
- Full Text
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10. Sedimentary and diagenetic features in saline lake deposits of the Monegros region, northern Spain
- Author
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Mees, F., Castañeda, C., and Van Ranst, E.
- Subjects
- *
LAKE sediments , *DIAGENESIS , *SALT lakes , *GYPSUM , *DOLOMITE , *MAGNESITE - Abstract
Abstract: The Monegros region in northern Spain is marked by the occurrence of a large number of ephemeral to dry lake basins, occupying small karstic depressions. The lacustrine sediment fill of these basins contain various carbonate and silicate minerals whose origin and palaeoenvironmental significance is poorly understood. For the present study, 14 lake basins were sampled in order to establish vertical, lateral and regional variations in mineralogical and textural characteristics, aimed at determining the mode of formation of the various mineral phases present. In nearly all basins, the same sequence of three lithological units is recognized, including a basal clayey unit, a middle magnesite-bearing and gypsum-rich unit, and a calcite- and dolomite-dominated surface unit. Distribution patterns of carbonate minerals indicate that magnesite is a synsedimentary precipitate, dolomite formed as a diagenetic authigenic phase, and calcite is partly authigenic and partly allogenic. All clay minerals, including sepiolite and smectite, appear to be allogenic. Regional variations are marked by similarities between groups of neighbouring basins, but no overall trend related to regional drainage patterns is recognized. The middle lithological unit records a lake stage with predominantly chemical sedimentation (Unit II), overlying a less well documented interval corresponding to a perennial lake stage with lower salinity (Unit III), whereas the surface unit formed during a period with predominantly clastic sedimentation. Based on a comparison with other regional records, the middle unit is attributed to an Early Holocene humid stage, separated from the overlying Late Holocene deposits by a hiatus that corresponds to a Mid Holocene arid stage. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
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11. Delineation and functional status monitoring in small saline wetlands of NE Spain
- Author
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Herrero, J. and Castañeda, C.
- Subjects
- *
REMOTE sensing , *WETLANDS monitoring , *HABITAT conservation , *AQUATIC resources , *WATER in agriculture , *IRRIGATION farming - Abstract
The small playa-lakes and other saline wetlands of Monegros, scattered over a dry area with winter cereal monoculture, are threatened by the settlement of new irrigation districts and other kinds of human pressure. Enforcing the protection rules of European Union in these valuable habitats requires, first, their delimitation and monitoring. This article shows how these tasks can be undertaken using remote sensing in conjunction with field observations. A series of Landsat images covering different seasons provided a comprehensive view of these wetlands encompassing their changing facies, hydrologic regime, state of conservation, and functional status. Remotely-sensed data were the primary, and in most cases the only available, source of consistent information. Our approach can help planning and surveying for the implementation of saline wetland protection measures in harmony with the conterminous agricultural areas. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
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12. Assessing the degradation of saline wetlands in an arid agricultural region in Spain
- Author
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Castañeda, Carmen and Herrero, Juan
- Subjects
- *
ENVIRONMENTAL degradation , *WETLAND management , *ENVIRONMENTAL monitoring - Abstract
Abstract: A constellation of saline wetlands in the Spanish Monegros Desert is currently subjected to increasing agricultural pressure. Until now, no systematic study of their degradation status has been performed, and no comprehensive map of these wetlands has been available. Both subjects are addressed for the first time in this study. In addition, we set up a conceptual tool for assessing saline wetlands degradation that improves upon available methods within geomorphological, sedimentological or hydrological frameworks. A wetlands inventory was produced and updated using satellite data, field observations, and orthophotographs, together with the available disperse data about these wetlands'' toponymy and location. The degraded landscape appearance of the surviving wetlands, mainly affected by agricultural intensification ― dumping and farming ― has been qualitatively assessed. Systematic descriptors of these saline wetlands ― escarpment, stone dumping, vegetation, and water ― were selected and analyzed to identify the status and the increase in degradation of these wetlands between 1988 and 2003. At present, 50% of the wetlands registered in 1988 have disappeared. Of the remaining wetlands, 30% have been invaded by crops and stone debris has increased in 63%. The smoothing of the escarpment appears to be a key degradation symptom. In the absence of field monitoring programs, the integration of remote sensing and GIS with field data was a powerful tool to track recent changes and assess wetland disturbance. A baseline for comparative analyses and further agro-environmental monitoring has been established. [Copyright &y& Elsevier]
- Published
- 2008
- Full Text
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13. The water regime of the Monegros playa-lakes as established from ground and satellite data
- Author
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Castañeda, Carmen and Herrero, Juan
- Subjects
- *
RADIOACTIVE pollution of water , *REMOTE sensing , *WATER in agriculture , *HYDROLOGIC cycle , *DEPLETION allowances - Abstract
Abstract: The Monegros playa-lakes are isolated saline wetlands, locally named ‘saladas’, situated in a vulnerable semi-arid territory where agricultural expansion threatens the natural hydrologic cycle with regular artificial flooding, risking the survival of a valuable natural resource. This study aims to examine the water regime of these playa-lakes from climate data and available hydrologic records. These records are historical and limited to a series of weekly measurements of depth and of water extent extracted from Landsat imagery. We have characterized the hydrological behavior of the playa-lakes by treating ground and satellite data separately. For this purpose, the playa-lakes are first grouped according to the water occurrence episodes. Then their hydrologic status is related to the previous rainfall and also to ET0, since there is a lack of local records of wind as well as brine or fresh water evaporation. The northern playa-lakes respond to rain faster than the southern ones. All playa-lakes have a significant relationship between water occurrence and rainfall accumulated within 180 days prior to an observation. A significant relationship between ET0 and water occurrence was found for a shorter 15-day accumulation period. Quantifying the current water regime now is critical for monitoring the effects of expanding irrigation in adjacent lands. Remote sensing is well-suited to an environmental assessment for regions of difficult access with the added benefit of lowered field measurement cost. The hydrological data from the Monegros playa-lakes could be integrated with other playa environments worldwide to compare regionally specific climate conditions. [Copyright &y& Elsevier]
- Published
- 2005
- Full Text
- View/download PDF
14. Apuntes sobre la importancia del material en la arquitectura de colonización de Los Monegros
- Author
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Prieto Mochales, Luis and Prieto Mochales, Luis
- Abstract
Dos son los elementos fundamentales que confluyen en los valores patrimoniales de los pueblos de colonización en general y de los Monegros en particular: la idea de conjunto unitario y la convergencia entre modernidad y tradición. En ambos aspectos, el material juega un papel significativo. El análisis que aquí se presenta trata de identificar aquellos valores de los proyectos originales que son esenciales para la consideración de los pueblos de colonización como patrimonio arquitectónico y urbano. La tesis de partida es que los materiales empleados en la construcción de estos pueblos constituyen un valor en sí mismo que conviene mantener y preservar. Esta contribución se enmarca en un trabajo de investigación más amplio, una tesis doctoral en curso, en el que se analiza el estado actual, el grado de conservación y las causas del deterioro que hoy se percibe en los pueblos de colonización de los Monegros. Partiendo de unas reflexiones generales sobre el valor patrimonial de los materiales y el análisis de su estado actual, se proponen algunas pautas para mejorar su conservación. También se avanzan una serie de posibles criterios que pueden servir de orientación a la hora de realizar intervenciones en el patrimonio construido de estos pueblos que forman parte del proyecto global de colonización español.
- Published
- 2019
15. Relict periglacial soils on Quaternary terraces in the Central Ebro Basin (NE Spain)
- Author
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Ministerio de Economía, Industria y Competitividad (España), Castañeda del Álamo, Carmen [0000-0002-7467-4812], Rodríguez-Ochoa, Rafael, Olarieta, José R., Santana, Asier, Castañeda del Álamo, Carmen, Calle, Mikel, Rhodes, Ed, Bartolomé, Miguel, Peña‐Monné, José Luis, Sancho, Carlos, Ministerio de Economía, Industria y Competitividad (España), Castañeda del Álamo, Carmen [0000-0002-7467-4812], Rodríguez-Ochoa, Rafael, Olarieta, José R., Santana, Asier, Castañeda del Álamo, Carmen, Calle, Mikel, Rhodes, Ed, Bartolomé, Miguel, Peña‐Monné, José Luis, and Sancho, Carlos
- Abstract
Pedofeatures associated with ancient cold climatic conditions have been recognized in soils on terraces in the Monegros area (central Ebro Basin, Spain), at a latitude of 41°49′N and an altitude of 300 m a.s.l. Eleven soil profiles were described on fluvial deposits corresponding to the most extensive terrace (T5) of the Alcanadre River, Middle Pleistocene in age (MIS8–MIS7). Each soil horizon was sampled for physical, chemical, mineralogical and micromorphological analyses. Macromorphological features related to pedocryogenic processes were described: involutions, jacked stones, shattered stones, detached and vertically oriented carbonatic pendents, fragmented carbonatic crusts, laminar microstructures, succitic fabric, silt cappings on rock fragments and aggregates, and irregular, broken, discontinuous and deformed gravel and sandy pockets. Accumulations of Fe–Mn oxides, dissolution features on the surface of carbonatic stones, and calcitic accumulations were identified related to vadose–phreatic conditions. The observed periglacial features developed under cold environmental conditions in exceptional geomorphic and hydrological conditions. This soil information may have potential implications in studies of paleoclimate in the Ebro Valley as well as in other Mediterranean areas.
- Published
- 2019
16. Intervención en el patrimonio de la arquitectura rural de colonización. Los poblados de la comarca de Los Monegros
- Author
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Prieto Mochales, Luis, Tejedor Cabrera, Antonio (Coordinador), Molina Huelva, Marta (Coordinador), Tejedor Cabrera, Antonio, and Molina Huelva, Marta
- Subjects
colonización ,actual state ,Monegros ,estado actual ,patrimonio ,intervención ,colonization ,intervention ,heritage - Abstract
The colonization towns built by the National Institute of Colonization (INC) in the decades of the 40s to the 60s, already have more than 50 years of existence. The work carried out in the development of the doctoral thesis has sought to collect the patrimonial elements of the colonization architecture that have been studied and analyzed in the various research works on the subject, verifying the current state of these relevant and common elements of the colonization architecture. The aim of this study is to be able to propose guidelines and criteria for their conservation and to allow them to serve as guidance for interventions consistent with the values they contain. In order to achieve these objectives, firstly, a number of representative cases have been selected, which cover most of these relevant common elements. Subsequently, the current status of the selected villages and the legal instruments that regulate their conservation and intervention have been analyzed. The results and conclusions are thougth to be reflected in final documents with a tab format summarizing the current state of the villages and the proposed criteria and intervention guidelines. Los poblados de colonización construidos por el Instituto Nacional de Colonización en las décadas de los años 40 a los años 60, están cumpliendo en la actualidad y en su mayor parte, más de 50 años de existencia. El trabajo llevado a cabo en el desarrollo de la tesis doctoral, ha pretendido recoger los elementos patrimoniables de la arquitectura de colonización que se han venido estudiando y analizando en los diversos trabajos de investigación existentes sobre el tema, constatando y comprobando el estado actual de estos elementos relevantes y comunes de la arquitectura de colonización. La finalidad es poder proponer pautas y criterios para su conservación y que permitan a su vez servir de orientación para realizar intervenciones acordes con los valores que contienen. Para llevar a cabo estos objetivos, se han seleccionado en primer lugar algunos casos representativos que recogen la mayor parte de estos elementos comunes relevantes. Posteriormente se ha analizado el estado actual de los poblados seleccionados y los instrumentos legales que regulan su conservación e intervención. Los resultados y conclusiones se pretenden reflejar en documentos finales con un formato de ficha que resuman el estado actual de los poblados y los criterios y pautas de intervención propuestas.
- Published
- 2017
17. Intervention in the heritage of rural colonization architecture. The villages of Los Monegros
- Author
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Tejedor Cabrera, Antonio, Molina Huelva, Marta, Prieto Mochales, Luis, Tejedor Cabrera, Antonio, Molina Huelva, Marta, and Prieto Mochales, Luis
- Abstract
The colonization towns built by the National Institute of Colonization (INC) in the decades of the 40s to the 60s, already have more than 50 years of existence. The work carried out in the development of the doctoral thesis has sought to collect the patrimonial elements of the colonization architecture that have been studied and analyzed in the various research works on the subject, verifying the current state of these relevant and common elements of the colonization architecture. The aim of this study is to be able to propose guidelines and criteria for their conservation and to allow them to serve as guidance for interventions consistent with the values they contain. In order to achieve these objectives, firstly, a number of representative cases have been selected, which cover most of these relevant common elements. Subsequently, the current status of the selected villages and the legal instruments that regulate their conservation and intervention have been analyzed. The results and conclusions are thougth to be reflected in final documents with a tab format summarizing the current state of the villages and the proposed criteria and intervention guidelines., Los poblados de colonización construidos por el Instituto Nacional de Colonización en las décadas de los años 40 a los años 60, están cumpliendo en la actualidad y en su mayor parte, más de 50 años de existencia. El trabajo llevado a cabo en el desarrollo de la tesis doctoral, ha pretendido recoger los elementos patrimoniables de la arquitectura de colonización que se han venido estudiando y analizando en los diversos trabajos de investigación existentes sobre el tema, constatando y comprobando el estado actual de estos elementos relevantes y comunes de la arquitectura de colonización. La finalidad es poder proponer pautas y criterios para su conservación y que permitan a su vez servir de orientación para realizar intervenciones acordes con los valores que contienen. Para llevar a cabo estos objetivos, se han seleccionado en primer lugar algunos casos representativos que recogen la mayor parte de estos elementos comunes relevantes. Posteriormente se ha analizado el estado actual de los poblados seleccionados y los instrumentos legales que regulan su conservación e intervención. Los resultados y conclusiones se pretenden reflejar en documentos finales con un formato de ficha que resuman el estado actual de los poblados y los criterios y pautas de intervención propuestas.
- Published
- 2017
18. La fuente del Milagro, en la cartuja de Nuestra Señora de las Fuentes (Sariñena, Huesca)
- Author
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Rausa, José Antonio, Villarroel Salcedo, José Luis, Cuchí Oterino, José Antonio, Rausa, José Antonio, Villarroel Salcedo, José Luis, and Cuchí Oterino, José Antonio
- Abstract
This paper presents some characteristics of the under-ground water collection system known as the Milagro Spring, located near the old Cartuja de Nuestra Señora de las Fuentes., El presente artículo presenta algunas características del sistema de captación subterránea conocido como la fuente del Milagro, situada en las proximidades de la antigua cartuja de Nuestra Señora de las Fuentes.
- Published
- 2016
19. Modernization of new irrigated lands in a scenario of increasing water scarcity: from large reservoirs to small ponds
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Jlassi, W., Nadal Romero, María Estela, García Ruiz, José María, Jlassi, W., Nadal Romero, María Estela, and García Ruiz, José María
- Abstract
Large rainfed, dryland areas were transformed into irrigated land in northeast Spain, where rivers from the Pyrenees Range ensure the availability of abundant water resources. The transformation of the Riegos del Alto Aragón area (RAA), mainly during the second half of the 20th century, was subject to major problems during the 1960s and 1970s, including monoculture of poorly productive winter cereals, water wastage, and soil degradation. Since the 1990s the RAA has been affected by modernization involving: (i) a change in the mode of irrigation, from gravity to sprinkler systems; (ii) the concentration of plots to enlarge the size of irrigated fields; and (iii) the introduction of more productive and highly water-consuming crops (corn, lucerne, vegetables). These changes coincided with enlargement of the irrigated area, increasing water demand at a time of increasing water scarcity because of restriction on the construction of new large reservoirs and declining water resources, because of climate and land use changes. Addressing this major problem has required new strategies, specifically the construction of small reservoirs and water ponds within the irrigated area. The ponds increase water reserves and facilitate sprinkling irrigation by adding pressure to the system. However, this has involved a huge rise in electricity consumption, which has increased the cost of production., Extensas áreas de secano fueron transformadas en regadío en el nordeste de España, donde los ríos procedentes de los Pirineos aseguran la disponibilidad de abundantes recursos hídricos. La transformación de Riegos del Alto Aragón (RAA) durante la segunda mitad del siglo XX ha estado sujeta a grandes problemas durante las décadas de 1960 y 1970, incluyendo el monocultivo de cereales de invierno escasamente productivos, despilfarro de agua y degradación del suelo. Desde la década de 1990 RAA se han visto afectados por un proceso de modernización que implica: (i) un cambio en la técnica de riego, pasando de riego por gravedad a aspersión; (ii) la concentración parcelaria para aumentar el tamaño de los campos regados; y (iii) la introducción de cultivos más productivos y muy consumidores de agua (maíz, alfalfa, cultivos hortícolas). Estos cambios han coincidido con la ampliación del área de riego, un aumento de la demanda de agua en un momento de creciente escasez debido a la dificultad para que se acepte la construcción de nuevos grandes embalses, y un descenso de los recursos hídricos debido al Cambio Global (cambio climático y de usos del suelo). La solución a este gran problema ha necesitado de nuevas estrategias, incluyendo la construcción de pequeños embalses y balsas dentro de la zona de regadío. Las balsas aumentan las reservas de agua y facilitan el riego por aspersión al añadir presión al sistema. Sin embargo, esto ha implicado un gran aumento del consumo de energía, que ha incrementado los costes de producción.
- Published
- 2016
20. Conquête de l'eau, mutations paysagères et recompositions sociales en milieu rural : le cas des Monegros (Espagne) (Water management, landscapes alterations and social reorganizations in rural areas : the example of the Monegros (Spain))
- Author
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Sylvie Clarimont
- Subjects
Monegros ,irrigation ,Espagne ,aménagement rural ,conflit ,aménagement hydraulique ,paysage ,Geography ,Geography, Planning and Development ,regadío ,España ,conflicto ,ordenación del territorio rural ,obras hidraùlicas ,paísaje ,Humanities ,Cartography ,Earth-Surface Processes - Abstract
Résumé. - Sur fond de remise en cause du modèle agricole productiviste, la conservation de certains paysages tend à prendre une place croissante dans l 'action publique. Toutefois, localement ces choix nouveaux en matière de gestion de l'espace rural ne font pas toujours l'unanimité. Ils suscitent parfois des tensions assez vives comme en témoigne l'exemple des Monegros. Autrefois caractérisé par la prédominance des formes extensives de mise en valeur (agro-pastoralisme), ce territoire situé au cœur de la dépression médio-aragonaise, en rive gauche de l'Ebre, est devenu le support d'une agriculture irriguée de type productiviste. L'Etat, inspiré par les écrits du polygraphe aragonais Joaquin Costa (1845-1911), a joué un rôle majeur dans la transformation de cet espace semi-aride. Au cours du siècle écoulé, les Monegros ont bénéficié de nombreux investissements destinés à «transformer le désert en verger». Aujourd'hui, le discours sur la nécessaire reconversion agricole des terres sèches de la dépression centrale aragonaise perd de son efficacité sans pour autant s 'effacer complètement ce qui est générateur de tensions. Dans le même temps, les paysages «naturels» steppiques, longtemps perçus de façon négative, commencent à être réhabilités tandis que les paysages de vieille hydraulique font eux-mêmes l'objet de projets de valorisation patrimoniale., Résumen. - Mientras se cuestiona el modelo agrícola productivista, las políticas de ordenación del territorio rural tienden cada vez más a adoptar medidas de protección de algunos paisajes. Sin embargo, estas nuevas medidas no siempre son consensuales. Puede occurir que, a nivel local, aparezcan tensiones. Así es en Monegros, territorio situado en la depresión central de Aragon, en la margen izquierda del Ebro. Antano dedicado al pastoreo extensivo y a la agricultura de secano, el territorio monegrino es hoy dia una zona de regadio. El Estado tuvo un pápel fundamental en la transformation de estas tierras áridas. A lo largo del siglo XX, siguiendo las ideas regeneracionistas del aragonés J. Costa (1845-1911) se ha invertido mucho en los Monegros para « convertir el desierto en vergel ». Consensual durante muchos anos, la politica de puesta en regadio de los Monegros empieza a ser debatida. Se emprenden medidas de rehabilitación de los paisajes esteparios antes muy despreciados asi como se elaboran proyectos de recuperación del patrimonio hidráulico traditional., Clarimont Sylvie. Conquête de l'eau, mutations paysagères et recompositions sociales en milieu rural : le cas des Monegros (Espagne) (Water management, landscapes alterations and social reorganizations in rural areas : the example of the Monegros (Spain)). In: Bulletin de l'Association de géographes français, 79e année, 2002-1 ( mars). Géomorphologie et géographie aujourd'hui. Eau et territoire, sous la direction de Yvonne Battiau-Queney, Isabelle Roussel et Richard Laganier. pp. 78-90.
- Published
- 2002
- Full Text
- View/download PDF
21. Simulación hidráulica del cauce natural del barranco de Campillo (zona regable de Monegros II) y posterior encauzamiento mediante el programa Hec-Ras
- Author
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Aliaga Gregorio, Juan Carlos and González Cebollada, César
- Subjects
modelización ,geo-ras ,riegos ,arcmap ,hec-ras ,encauzamiento ,monegros ,sig ,gis ,avenidas - Abstract
El objeto del presente proyecto ha sido la modelización hidráulica del barranco de Campillo, en el término municipal de Ballobar (Huesca), que formara parte de la red de drenajes de la zona regable de Monegros II dentro de la Comunidad General de Riegos del Alto Aragón. La geometría del cauce para la modelización hidráulica ha sido generada con el programa Geo-Ras, que funciona como extensión del programa SIG (Sistema de Información Geografica) ArcMap. La posterior modelización hidráulica se ha realizado mediante el programa de cálculo hidráulico Hec-Ras. Para la modelización hidráulica se han considerado los caudales de retorno de riegos, máxima avenida con periodo de retorno de 25 años y máxima avenida con periodo de retorno de 100 años. Con la modelización del cauce natural del barranco se han detectado las situaciones a corregir, para su correcto funcionamiento como desagüe de la zona de riego, para que el barranco permita el flujo sin desbordamiento de los caudales de avenida y para el correcto dimensionado de los cruces de caminos sobre dicho barranco. Una vez detectadas las situaciones a corregir, se ha procedido al diseño del encauzamiento del barranco mediante el programa Hec-Ras. Diseñando las estructuras disipadoras de energía necesarias y los cruces de caminos sobre el barranco.
- Published
- 2013
22. Datos para el conocimiento del patrimonio minero de la comarca aragonesa de los Monegros. II hornos de yeso y hornos de cal
- Author
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Mata Perello, Josep Maria, Alfonso Abella, María Pura|||0000-0002-1515-4999, Climent Costa, Ferran, Parcerisa Duocastella, David|||0000-0001-8071-9936, Pocoví Juan, Andrés, Vilaltella Farràs, Jaume, Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, and Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible
- Subjects
Patrimonio Minero ,Depresión Geológica del Ebro ,Hornos de Yeso ,Monegros ,Mineralogy--Spain ,Mineralogia -- Aragó ,Enginyeria civil::Geologia [Àrees temàtiques de la UPC] ,Geology--Spain ,Hornos de Cal ,Aragón ,Geologia -- Aragó - Abstract
En este artículo, nos centraremos en el Patrimonio Minero de la comarca aragonesa de los Monegros, especialmente en el relacionado con las Hornos de Yeso y con los Hornos de Cal. Se trata de una comarca situada en el centro de Aragón, ubicada totalmente dentro de la Depresión Geológica del Ebro, entre afloramientos de materiales cenozoicos. Dentro de esta comarca existen interesantes elementos del Patrimonio Minero de la Comunidad Aragonesa. Estos elementos se hallan relacionados fundamentalmente con Tejeras y con Hornos de Yeso. En esta comunicación, nos centraremos especialmente en el segundo grupo: en los Hornos de Yeso
- Published
- 2013
23. Sedimentary and diagenetic features in saline lake deposits of the Monegros region, northern Spain
- Author
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Florias Mees, Carmen Castañeda, and E. Van Ranst
- Subjects
Monegros ,Dolomite ,Carbonate minerals ,Geochemistry ,Authigenic ,magnesite ,gypsum ,Diagenesis ,chemistry.chemical_compound ,dolomite ,chemistry ,lake deposits ,Clastic rock ,Carbonate ,Sedimentary rock ,Geomorphology ,Geology ,Holocene ,Earth-Surface Processes - Abstract
26 Pag., 3 Fig. The definitive version is available at: http://www.sciencedirect.com/science/journal/03418162, The Monegros region in northern Spain is marked by the occurrence of a large number of ephemeral to dry lake basins, occupying small karstic depressions. The lacustrine sediment fill of these basins contain various carbonate and silicate minerals whose origin and palaeoenvironmental significance is poorly understood. For the present study, 14 lake basins were sampled in order to establish vertical, lateral and regional variations in mineralogical and textural characteristics, aimed at determining themode of formation of the various mineral phases present. In nearly all basins, the same sequence of three lithological units is recognized, including a basal clayey unit, a middle magnesite-bearing and gypsum-rich unit, and a calcite- and dolomite-dominated surface unit. Distribution patterns of carbonate minerals indicate that magnesite is a synsedimentary precipitate, dolomite formed as a diagenetic authigenic phase, and calcite is partly authigenic and partly allogenic. All clay minerals, including sepiolite and smectite, appear to be allogenic. Regional variations are marked by similarities between groups of neighbouring basins, but no overall trend related to regional drainage patterns is recognized. The middle lithological unit records a lake stage with predominantly chemical sedimentation (Unit II), overlying a less well documented interval corresponding to a perennial lake stage with lower salinity (Unit III), whereas the surface unit formed during a period with predominantly clastic sedimentation. Based on a comparison with other regional records, the middle unit is attributed to an Early Holocene humid stage, separated from the overlying Late Holocene deposits by a hiatus that corresponds to a Mid Holocene arid stage., This study was funded by project G.0103.05N of the Fund for Scientific Research (Flanders), and by projects AGL2006-01283/AGR and AGL2009-08931/AGR of the Spanish Government.
- Published
- 2011
24. Rocas silíceas de la margen izquierda del valle medio del Ebro
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García Simón, Luis Miguel, Mandado Collado, Juan Miguel A., García Simón, Luis Miguel, and Mandado Collado, Juan Miguel A.
- Abstract
The petrographic study of lithic raw materials, and more specifically flint, has enjoyed a remarkable development given its impor- tance for prehistoric research. This paper presents the analysis of 46 chert deposits from the left margin of the middle Ebro basin, among them the well-known Monegros type, La arqueopetrografía o estudio petrográfico de las mate- rias primas líticas utilizadas en la prehistoria, concretamente el sílex, ha experimentado una notable evolución en la investigación prehistórica. En el presente artículo se analizan sílex procedentes de 46 afloramientos de la margen izquierda del valle medio del Ebro, entre los que se destaca la varie- dad conocida como tipo Monegros
- Published
- 2014
25. Investigating soils for agri-environmental protection in arid Spain
- Author
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Castañeda del Álamo, Carmen, Méndez, S., Herrero Isern, Juan, and Betrán Aso, Jesús Ángel
- Subjects
Pedodiversity ,Salinity ,Monegros - Abstract
7 Pag., 1 Tabl., 1 Fig. The definitive version is available at: http://www.springerlink.com/content/978-90-481-8656-3/, The saline wetlands of the Monegros Desert, in the central Ebro Basin (NE Spain), host valuable biodiversity and pedodiversity. A part of this area has been proposed for inclusion in the European Union Natura 2000 network. However, agricultural intensification is changing the area as more land is consolidated for new irrigation or is plowed to earn CAP (Common Agricultural Policy) subsidies. Soil mapping is needed to assist in the delimitation of natural habitats and to make conservation compatible with agriculture. The methodology presented here to characterize agri-environmental areas takes into account current agricultural and environmental practices. We examined the opinions of farmers and agricultural and environmental officers concerning a new agri-environmental measure, which could be proposed for inclusion in the Rural Development section of the CAP. The measure would save agriculture inputs in unproductive areas and also comply with nature conservation objectives. A GIS database was built for selecting the farming plots suitable for new agricultural practices favoring biodiversity and pedodiversity. At the local scale, we used remote sensing and pedodiversity criteria for selecting low production areas to be prospected. The opinion poll resulted in a positive response and confirmed the interest of farmers in having detailed maps of those soil features that limit crop production. The soil survey reveals soil salinity, and high contents of gypsum and calcium carbonate, as significant features to map low production areas for making agriculture compatible with habitat conservation., This work is a result of projects AGL2006-01283 and GALC006-2008.
- Published
- 2010
26. Variación de los índices de saturación en función del calculo de coeficientes de actividad. su aplicación a las fases mineralogicas de las lagunas de Monegros (Zaragoza, España)
- Author
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Mandado, J., Gimeno, M. J., Auqué, L., Tena, J. M., and Garcés, L.
- Subjects
Indice de Saturación ,Fuerzas Iónicas ,Brines ,Monegros ,activity ,geochemical modelling ,lcsh:QE1-996.5 ,Saturation Index ,modelización geoqufmica ,playa-lake ,Ionic Forces ,Salmueras ,lagunas ,lcsh:Geology ,actividad - Abstract
Application of WATEQ4F and SOLMINEQ.88 speciation-solubility codes to brines fmm La Playa in Los Monegros (Zaragoza) has been used to contrast different approaches in activity calculations and to determinate saturation indexo The evaporation process increases ionic force and activities of dissolved species but with notorious singularities; the salt precipitation is theoretically reached only with ionic forces greater than 3. Pitzer's formulation included in SOLMINEQ.88 options is the best one for approximation to natural observations, and WATEQ4F also shows good concordance with evolutive trendLa aplicación de los códigos de especiación WATEQ4F y SOLMINEQ.88 a los datos del sistema natural de la laguna de La Playa en Los Monegros (Zaragoza) proporcionados por autores previos, ha servido para contrastar distintas opciones de cálculo. Como era de esperar, el aumento de la Fuerza Iónica con el avance de la evaporación proporciona un incremento de la actividad de las especies disueltas (y una disminución de la del agua) sea cual sea la opción escogida, aunque existen notorias diferencias y singularidades. Los Indices de Saturación de las especies minerales presentes en el sistema (calcita, dolomita, yeso, anhidrita, thenardita y halita) muestran que la espectacular precipitación de sales observada en el fondo de las lagunas sólo se consigue, de acuerdo con la serie de desmuestre tratada, cuando la evaporación está ya bastante avanzada y con Fuerzas Iónicas mayores de 3. De todas las opciones de cálculo analizadas, la que proporciona unos resultados más acordes con lo observado en el medio natural es la correspondiente al SOLMINEQ.88 con el desarrollo de ecuaciones de Pitzer, aunque también el WATEQ4F muestra concordancias en cuanto a las tendencias.
- Published
- 1991
27. Datos para el conocimiento del patrimonio minero de la comarca aragonesa de los Monegros. Las Tejeras
- Author
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible, Mata Perelló, Josep Maria, Alfonso Abella, María Pura, Climent Costa, Ferran, Parcerisa Duocastella, David, Pocoví Juan, Andrés, Vilaltella Farràs, Jaume, Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible, Mata Perelló, Josep Maria, Alfonso Abella, María Pura, Climent Costa, Ferran, Parcerisa Duocastella, David, Pocoví Juan, Andrés, and Vilaltella Farràs, Jaume
- Abstract
En este artículo, nos centraremos en el Patrimonio Minero de la comarca aragonesa de los Monegros, especialmente en el relacionado con las Tejeras. Se trata de una comarca situada en el centro de Aragón, ubicada totalmente dentro de la Depresión Geológica del Ebro, entre afloramientos de materiales cenozoicos. Dentro de esta comarca existen interesantes elementos del Patrimonio Minero de la Comunidad Aragonesa. Estos elementos se hallan relacionados fundamentalmente con Tejeras y con Hornos de Yeso. En esta comunicación, nos centraremos especialmente en el primer grupo: en las Tejeras., Postprint (published version)
- Published
- 2013
28. Datos para el conocimiento del patrimonio minero de la comarca aragonesa de los Monegros. II hornos de yeso y hornos de cal
- Author
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible, Mata Perelló, Josep Maria, Alfonso Abella, María Pura, Climent Costa, Ferran, Parcerisa Duocastella, David, Pocoví Juan, Andrés, Vilaltella Farràs, Jaume, Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible, Mata Perelló, Josep Maria, Alfonso Abella, María Pura, Climent Costa, Ferran, Parcerisa Duocastella, David, Pocoví Juan, Andrés, and Vilaltella Farràs, Jaume
- Abstract
En este artículo, nos centraremos en el Patrimonio Minero de la comarca aragonesa de los Monegros, especialmente en el relacionado con las Hornos de Yeso y con los Hornos de Cal. Se trata de una comarca situada en el centro de Aragón, ubicada totalmente dentro de la Depresión Geológica del Ebro, entre afloramientos de materiales cenozoicos. Dentro de esta comarca existen interesantes elementos del Patrimonio Minero de la Comunidad Aragonesa. Estos elementos se hallan relacionados fundamentalmente con Tejeras y con Hornos de Yeso. En esta comunicación, nos centraremos especialmente en el segundo grupo: en los Hornos de Yeso, Postprint (published version)
- Published
- 2013
29. Assessing the degradation of saline wetlands in an arid agricultural region in Spain
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Carmen Castañeda and Juan Herrero
- Subjects
Hydrology ,geography ,Salinity ,geography.geographical_feature_category ,business.industry ,Monegros ,Wetland ,Escarpment ,Vegetation ,Arid ,Debris ,Landscape degradation ,Disturbance (ecology) ,Remote sensing (archaeology) ,Agriculture ,Playa-lakes ,Environmental science ,business ,Earth-Surface Processes ,Aridity - Abstract
28 Pags._ 2 Tabls.- 5 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03418162, A constellation of saline wetlands in the Spanish Monegros Desert is currently subjected to increasing agricultural pressure. Until now, no systematic study of their degradation status has been performed, and no comprehensive map of these wetlands has been available. Both subjects are addressed for the first time in this study. In addition, we set up a conceptual tool for assessing saline wetlands degradation that improves upon available methods within geomorphological, sedimentological or hydrological frameworks. A wetlands inventory was produced and updated using satellite data, field observations, and orthophotographs, together with the available disperse data about these wetlands' toponymy and location. The degraded landscape appearance of the surviving wetlands, mainly affected by agricultural intensification ― dumping and farming ― has been qualitatively assessed. Systematic descriptors of these saline wetlands ― escarpment, stone dumping, vegetation, and water ― were selected and analyzed to identify the status and the increase in degradation of these wetlands between 1988 and 2003. At present, 50% of the wetlands registered in 1988 have disappeared. Of the remaining wetlands, 30% have been invaded by crops and stone debris has increased in 63%. The smoothing of the escarpment appears to be a key degradation symptom. In the absence of field monitoring programs, the integration of remote sensing and GIS with field data was a powerful tool to track recent changes and assess wetland disturbance. A baseline for comparative analyses and further agro-environmental monitoring has been established., The Spanish Ministry of Education and Science and FEDER supported this work with the research project AGL2006-01283, and with the grant EX2006-0347 to the first author.
- Published
- 2008
30. Measuring the condition of saline wetlands threatened by agricultural intensification
- Author
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Carmen Castañeda and Juan Herrero
- Subjects
Hydrology ,geography ,Irrigation ,geography.geographical_feature_category ,Monegros ,Vulnerability ,Biodiversity ,Soil Science ,Wetland ,Context (language use) ,irrigation ,playa ,Agricultural intensification ,Threatened species ,Water resource management ,Cropping ,Agricultural landscapes ,desert - Abstract
29 Pags.- 5 Tabls.- 6 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/10020160, The saline wetlands, or "saladas", of Monegros Desert, NE Spain, contain biodiversity that depends on the establishment of a prognostic monitoring system that can warn of approaching irreversible damage. In the context of a lack of existing biodiversity inventories for the saladas, we determined their state of conservation and vulnerability using seven physical indicators: escarpment continuity, cropping, stone dumping, size, water occurrence, distance to roads, and proximity to irrigated areas. These features were combined into three meaningful indexes, i.e., conservation, current vulnerability, and future vulnerability, thus creating an assessment of the preservation or degradation of saladas in the context of encroaching agricultural irrigation projects. The proposed indexes produced consistent results and showed that a great number of the Monegros wetlands were threatened, regardless of their size or frequency of water occurrence. Only 20% of the saladas studied were classified as being in a good or very good conservation, whereas 50% were in bad or very bad shape. A high current vulnerability was found for 60% of the saladas. For saladas located in land to be irrigated, we predicted that 73% would have a high or very high future vulnerability. Currently, 58% of the saladas were in bad or very bad condition and fully 65% of the saladas, variable in size, presented a bad or very bad prognosis. Our approach provides a monitoring strategy for the conservation of saline wetlands threatened by agricultural intensification, especially irrigation., Project supported by the Ministry of Education and Science, Spain (No. AGL2006-01283) and the European Regional Development Fund (No. EX2006-0347).
- Published
- 2008
31. Sedimentary and diagenetic features in saline lake deposits of the Monegros region, northern Spain
- Author
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Mees, Florias, Castañeda del Álamo, Carmen, Ranst, Eric van, Mees, Florias, Castañeda del Álamo, Carmen, and Ranst, Eric van
- Abstract
The Monegros region in northern Spain is marked by the occurrence of a large number of ephemeral to dry lake basins, occupying small karstic depressions. The lacustrine sediment fill of these basins contain various carbonate and silicate minerals whose origin and palaeoenvironmental significance is poorly understood. For the present study, 14 lake basins were sampled in order to establish vertical, lateral and regional variations in mineralogical and textural characteristics, aimed at determining themode of formation of the various mineral phases present. In nearly all basins, the same sequence of three lithological units is recognized, including a basal clayey unit, a middle magnesite-bearing and gypsum-rich unit, and a calcite- and dolomite-dominated surface unit. Distribution patterns of carbonate minerals indicate that magnesite is a synsedimentary precipitate, dolomite formed as a diagenetic authigenic phase, and calcite is partly authigenic and partly allogenic. All clay minerals, including sepiolite and smectite, appear to be allogenic. Regional variations are marked by similarities between groups of neighbouring basins, but no overall trend related to regional drainage patterns is recognized. The middle lithological unit records a lake stage with predominantly chemical sedimentation (Unit II), overlying a less well documented interval corresponding to a perennial lake stage with lower salinity (Unit III), whereas the surface unit formed during a period with predominantly clastic sedimentation. Based on a comparison with other regional records, the middle unit is attributed to an Early Holocene humid stage, separated from the overlying Late Holocene deposits by a hiatus that corresponds to a Mid Holocene arid stage.
- Published
- 2011
32. Impacto socioeconomico y ambiental de la nueva PAC. repercusiones sobre la agricultura de regadio en los Monegros (Aragon)
- Author
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Elfkih, Saida and Sanchez Choliz, Julio
- Subjects
Monegros ,multiple criteria decision making ,decision multicriterio ,Crop Production/Industries ,PAC ,CAP ,single payment ,field crops ,agricultura ,Agricultural and Food Policy ,cultivos herbaceos ,desacoplamiento ,agriculture - Abstract
La politica Agraria Comun (PAC) desde su origen ha sufrido profundos cambios para hacer frente a nuevos desafios, pasando de una politica proteccionista de precios, que pretendia el aumento de la productividad, a una politica que tiene como objetivo el desarrollo sostenible y el respecto al medio ambiente. Este trabajo trata de analizar el impacto economico social y ambiental de la PAC sobre la agricultura de reagdio, specialmente sobre los cultivos herbaceos. En concreto, se analiza como influye la reciente reforma de la PAC, principalmente el desacoplamiento de las ayudas, en el sistemas productivo, la renta, el consumo de ague, el uso de nitrato y el nivel de empleo. Se han establecido seis escenarios futuros de la PAC con el objectivo de estudiar las repercusiones que estos tendrian sobre estos temas. Para alcanzar este objectivo se ha optado por la realizacion de simulacioens a traves de un modelo de programacion matematica, desarrollado dentro del paradigma de la Decision Multicriterio, concretamente el metodo NISE. la metodologia propuesta se ha puesto en practica en la comarca de los Monegros (Aragon). Los resultados obtenidos demuestran la importancia del desacoplamiento parcial de las ayudas en la agricultura de regadio en cuanto a satisfaccion de los objectivos economicos sociales y ambientales...The common Agricultural Policy (CAP), has deeply changed from a protectionist price policy, that tries to increase the productivity, to a policy that aims the sustainable development and the protection of the environment. The present study tries to analyze the economic, social and environmental impact of the CAP on the irrigated agriculture, specially on the field crops. In this way, it is analysed how the recent reform of the CAP, in particular the influence of the single payment on the productive system, the farm income, the water consumption, the use of nitrate and on the level of employment. It has been established six future scenarios of the CAP to study the repercussions on these issues. To reach this objective the study has opted to implement simulations through mathematical programming models, developed within the Multiple Criteria Decision making paradigm especially the NISE method. The proposed methodology has been practiced in the Monegros region (Aragon). The obtained results show the importance of the single payment partially decoupled in the irrigated agriculture in the satisfaction of social environmental and economic objectives.
- Published
- 2005
- Full Text
- View/download PDF
33. Measuring the condition of saline wetlands threatened by agricultural intensification
- Author
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Castañeda del Álamo, Carmen, Herrero Isern, Juan, Castañeda del Álamo, Carmen, and Herrero Isern, Juan
- Abstract
The saline wetlands, or "saladas", of Monegros Desert, NE Spain, contain biodiversity that depends on the establishment of a prognostic monitoring system that can warn of approaching irreversible damage. In the context of a lack of existing biodiversity inventories for the saladas, we determined their state of conservation and vulnerability using seven physical indicators: escarpment continuity, cropping, stone dumping, size, water occurrence, distance to roads, and proximity to irrigated areas. These features were combined into three meaningful indexes, i.e., conservation, current vulnerability, and future vulnerability, thus creating an assessment of the preservation or degradation of saladas in the context of encroaching agricultural irrigation projects. The proposed indexes produced consistent results and showed that a great number of the Monegros wetlands were threatened, regardless of their size or frequency of water occurrence. Only 20% of the saladas studied were classified as being in a good or very good conservation, whereas 50% were in bad or very bad shape. A high current vulnerability was found for 60% of the saladas. For saladas located in land to be irrigated, we predicted that 73% would have a high or very high future vulnerability. Currently, 58% of the saladas were in bad or very bad condition and fully 65% of the saladas, variable in size, presented a bad or very bad prognosis. Our approach provides a monitoring strategy for the conservation of saline wetlands threatened by agricultural intensification, especially irrigation.
- Published
- 2008
34. Assessing the degradation of saline wetlands in an arid agricultural region in Spain
- Author
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Castañeda del Álamo, Carmen, Herrero Isern, Juan, Castañeda del Álamo, Carmen, and Herrero Isern, Juan
- Abstract
A constellation of saline wetlands in the Spanish Monegros Desert is currently subjected to increasing agricultural pressure. Until now, no systematic study of their degradation status has been performed, and no comprehensive map of these wetlands has been available. Both subjects are addressed for the first time in this study. In addition, we set up a conceptual tool for assessing saline wetlands degradation that improves upon available methods within geomorphological, sedimentological or hydrological frameworks. A wetlands inventory was produced and updated using satellite data, field observations, and orthophotographs, together with the available disperse data about these wetlands' toponymy and location. The degraded landscape appearance of the surviving wetlands, mainly affected by agricultural intensification ― dumping and farming ― has been qualitatively assessed. Systematic descriptors of these saline wetlands ― escarpment, stone dumping, vegetation, and water ― were selected and analyzed to identify the status and the increase in degradation of these wetlands between 1988 and 2003. At present, 50% of the wetlands registered in 1988 have disappeared. Of the remaining wetlands, 30% have been invaded by crops and stone debris has increased in 63%. The smoothing of the escarpment appears to be a key degradation symptom. In the absence of field monitoring programs, the integration of remote sensing and GIS with field data was a powerful tool to track recent changes and assess wetland disturbance. A baseline for comparative analyses and further agro-environmental monitoring has been established.
- Published
- 2008
35. El CITA investiga sobre las saladas de Monegros
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Herrero Isern, Juan and Herrero Isern, Juan
- Published
- 2006
36. The water regime of the Monegros playa-lakes as established from ground and satellite data
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Gobierno de Aragón, European Commission, Castañeda del Álamo, Carmen, Herrero Isern, Juan, Gobierno de Aragón, European Commission, Castañeda del Álamo, Carmen, and Herrero Isern, Juan
- Abstract
The Monegros playa-lakes are isolated saline wetlands, locally named ‘saladas’, situated in a vulnerable semi-arid territory where agricultural expansion threatens the natural hydrologic cycle with regular artificial flooding, risking the survival of a valuable natural resource. This study aims to examine the water regime of these playa-lakes from climate data and available hydrologic records. These records are historical and limited to a series of weekly measurements of depth and of water extent extracted from Landsat imagery. We have characterized the hydrological behavior of the playa-lakes by treating ground and satellite data separately. For this purpose, the playa-lakes are first grouped according to the water occurrence episodes. Then their hydrologic status is related to the previous rainfall and also to ET0, since there is a lack of local records of wind as well as brine or fresh water evaporation. The northern playa-lakes respond to rain faster than the southern ones. All playa-lakes have a significant relationship between water occurrence and rainfall accumulated within 180 days prior to an observation. A significant relationship between ET0 and water occurrence was found for a shorter 15-day accumulation period. Quantifying the current water regime now is critical for monitoring the effects of expanding irrigation in adjacent lands. Remote sensing is well-suited to an environmental assessment for regions of difficult access with the added benefit of lowered field measurement cost. The hydrological data from the Monegros playa-lakes could be integrated with other playa environments worldwide to compare regionally specific climate conditions.
- Published
- 2005
37. Una metodología para el estudio de las saladas de Monegros Sur mediante imágenes Landsat TM
- Author
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Castañeda del Álamo, Carmen, Casterad Seral, María Auxiliadora, Herrero Isern, Juan, CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), and Gobierno de Aragón
- Subjects
Landsat 5TM ,clasificación no supervisada ,water surface ,inland salt marshes ,salinas ,unsupervised classification ,Monegros ,superficie de agua - Abstract
4 Pags.- 2 Figs. Publicación basada en Comunicación original de los autores al IX Congreso Nacional de Teledetección (Lleida. 19-20 septiembre 2001)., [ES] El seguimiento y la conservación de humedales es posible con el conocimiento de su evolución y de su dinámica, y en primer lugar con el reconocimiento y localización geográfica de las superficies de agua. Las lagunas y otras depresiones saladas de Monegros constituyen hábitats de gran singularidad al situarse en la región interior más árida de Europa. Este trabajo presenta una metodología basada en la teledetección para estudiar los cambios experimentados por la lámina de agua libre y otras coberturas asociadas a las depresiones. Se discuten los resultados de diversas técnicas de análisis de las imágenes del satélite Landsat 5TM: interpretación visual, transformación HSI, análisis de componentes principales y clasificación no supervisada. Los datos de campo disponibles han servido para interpretar las imágenes y para corroborar los resultados obtenidos por teledetección., [EN] Wetlands monitoring and preservation is possible as we know their evolution and dynamics and in thefirst place their water surface’s geographical location. Monegros’ lagoons and other salt depressions are outstanding habitats because of their location in the region of Europe with the highest evapotranspirative deficit.This paper presents a methodology, based in remote sensing, to detect inland salt marshes change not only in water surface but also in associated covers. We discuss the results of applying different analysis to the Landsat 5TM imagery: visual i nterpretation, HSI transformation, principal components analysis and unsupervised classification. Available ground data have been used to interpret the images and to confirm the results., Este trabajo se enmarca en la Acción Especial 00-31, cofinanciada por INIA y el Gobierno de Aragón.
- Published
- 2001
38. Una metodología para el estudio de las saladas de Monegros Sur mediante imágenes Landsat TM
- Author
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CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Gobierno de Aragón, Castañeda del Álamo, Carmen, Casterad Seral, María Auxiliadora, Herrero Isern, Juan, CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Gobierno de Aragón, Castañeda del Álamo, Carmen, Casterad Seral, María Auxiliadora, and Herrero Isern, Juan
- Abstract
[ES] El seguimiento y la conservación de humedales es posible con el conocimiento de su evolución y de su dinámica, y en primer lugar con el reconocimiento y localización geográfica de las superficies de agua. Las lagunas y otras depresiones saladas de Monegros constituyen hábitats de gran singularidad al situarse en la región interior más árida de Europa. Este trabajo presenta una metodología basada en la teledetección para estudiar los cambios experimentados por la lámina de agua libre y otras coberturas asociadas a las depresiones. Se discuten los resultados de diversas técnicas de análisis de las imágenes del satélite Landsat 5TM: interpretación visual, transformación HSI, análisis de componentes principales y clasificación no supervisada. Los datos de campo disponibles han servido para interpretar las imágenes y para corroborar los resultados obtenidos por teledetección., [EN] Wetlands monitoring and preservation is possible as we know their evolution and dynamics and in thefirst place their water surface’s geographical location. Monegros’ lagoons and other salt depressions are outstanding habitats because of their location in the region of Europe with the highest evapotranspirative deficit.This paper presents a methodology, based in remote sensing, to detect inland salt marshes change not only in water surface but also in associated covers. We discuss the results of applying different analysis to the Landsat 5TM imagery: visual i nterpretation, HSI transformation, principal components analysis and unsupervised classification. Available ground data have been used to interpret the images and to confirm the results.
- Published
- 2001
39. Datos para el conocimiento del patrimonio minero de la comarca aragonesa de los Monegros. Las Tejeras
- Author
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Mata Perello, Josep Maria, Alfonso Abella, María Pura|||0000-0002-1515-4999, Climent Costa, Ferran, Parcerisa Duocastella, David|||0000-0001-8071-9936, Pocoví Juan, Andrés, Vilaltella Farràs, Jaume, Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC, and Universitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible
- Subjects
Patrimonio Minero ,Depresión Geológica del Ebro ,Tejeras ,Monegros ,Mineralogy--Spain ,Mineralogia -- Aragó ,Enginyeria civil::Geologia [Àrees temàtiques de la UPC] ,Geology--Spain ,Aragón ,Geologia -- Aragó - Abstract
En este artículo, nos centraremos en el Patrimonio Minero de la comarca aragonesa de los Monegros, especialmente en el relacionado con las Tejeras. Se trata de una comarca situada en el centro de Aragón, ubicada totalmente dentro de la Depresión Geológica del Ebro, entre afloramientos de materiales cenozoicos. Dentro de esta comarca existen interesantes elementos del Patrimonio Minero de la Comunidad Aragonesa. Estos elementos se hallan relacionados fundamentalmente con Tejeras y con Hornos de Yeso. En esta comunicación, nos centraremos especialmente en el primer grupo: en las Tejeras.
40. Relict periglacial soils on Quaternary terraces in the Central Ebro Basin (NE Spain)
- Author
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Mikel Calle, José Luis Peña-Monné, Carmen Castañeda, Edward J. Rhodes, Miguel Bartolomé, Carlos Sancho, Rafael Rodríguez-Ochoa, Asier Santana, José Ramón Olarieta, Ministerio de Economía, Industria y Competitividad (España), Castañeda del Álamo, Carmen [0000-0002-7467-4812], and Castañeda del Álamo, Carmen
- Subjects
010506 paleontology ,geography ,geography.geographical_feature_category ,Calcareous soils ,010504 meteorology & atmospheric sciences ,Pleistocene ,Monegros ,Middle latitude ,Geochemistry ,Fluvial ,Silt ,Permafrost ,Carbonatic accumulations ,01 natural sciences ,Rock fragment ,Terrace (geology) ,low altitude ,Cryogenic pedofeatures ,Soil horizon ,Low altitude ,middle latitude ,Quaternary ,Geology ,0105 earth and related environmental sciences ,Earth-Surface Processes - Abstract
38 Pags.- 8 Figs. The definitive version is available at: https://onlinelibrary.wiley.com/journal/10991530. This article was included into a special Special Issue: "Permafrost and Periglacial Processes in mid‐low latitude mountain regions"., Pedofeatures associated with ancient cold climatic conditions have been recognized in soils on terraces in the Monegros area (central Ebro Basin, Spain), at a latitude of 41°49′N and an altitude of 300 m a.s.l. Eleven soil profiles were described on fluvial deposits corresponding to the most extensive terrace (T5) of the Alcanadre River, Middle Pleistocene in age (MIS8–MIS7). Each soil horizon was sampled for physical, chemical, mineralogical and micromorphological analyses. Macromorphological features related to pedocryogenic processes were described: involutions, jacked stones, shattered stones, detached and vertically oriented carbonatic pendents, fragmented carbonatic crusts, laminar microstructures, succitic fabric, silt cappings on rock fragments and aggregates, and irregular, broken, discontinuous and deformed gravel and sandy pockets. Accumulations of Fe–Mn oxides, dissolution features on the surface of carbonatic stones, and calcitic accumulations were identified related to vadose–phreatic conditions. The observed periglacial features developed under cold environmental conditions in exceptional geomorphic and hydrological conditions. This soil information may have potential implications in studies of paleoclimate in the Ebro Valley as well as in other Mediterranean areas., This study was funded by the Spanish Ministry of Economy, Industry and Competivity under the projects CGL 2017-89603-R and PCI2018-092999.
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