24 results on '"Bressiani, Danielle"'
Search Results
2. Best management practices to reduce soil erosion and change water balance components in watersheds under grain and dairy production
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Silva, Thais Palumbo, Bressiani, Danielle, Ebling, Éderson Diniz, and Reichert, José Miguel
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- 2024
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3. Climate change in the upper Paraguay Basin and hydrological impacts on the Pantanal
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Ferreira, Filipe Henrique Miranda, primary, Cabral Sousa Júnior, Wilson, additional, Almeida Bressiani, Danielle, additional, Manoel Mendes Filho, Walter, additional, and Aparecido Gonçalves, Demerval, additional
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- 2024
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4. Projection of spatially explicit land use scenarios for the São Francisco River Basin, Brazil
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Vasco, Gabriel, primary, Miranda, Rodrigo, additional, Viana, Jussara Freire de Souza, additional, Bressiani, Danielle, additional, Mendiondo, Eduardo Mario, additional, Silva, Richarde Marques da, additional, Galvíncio, Josiclêda Domiciano, additional, Bezerra, Gilney, additional, and Montenegro, Suzana, additional
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- 2024
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5. Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
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Siqueira, Paula Prado, Oliveira, Paulo Tarso S., Bressiani, Danielle, Meira Neto, Antonio A., and Rodrigues, Dulce B.B.
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- 2021
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6. Evaluating hydrological and soil erosion processes in different time scales and land uses in southern Brazilian paired watersheds
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Silva, Thais Palumbo, primary, Bressiani, Danielle, additional, Ebling, Éderson Diniz, additional, de Deus Júnior, José Carlos, additional, and Reichert, José Miguel, additional
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- 2023
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7. Impactos do uso e cobertura do solo na produção de sedimentos em área de manancial peri-urbano tropical
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Jovino, Estephania Silva, primary, Angelini, Ronaldo, additional, Bressiani, Danielle Almeida, additional, Cunha, Karina Patrícia Vieira, additional, and Costa, Carlos Willmer, additional
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- 2022
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8. Soil loss estimated by means of the RUSLE model in a subtropical climate watershed
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Zanchin, Mayara, primary, Moura, Maíra Martim de, additional, Nunes, Maria Cândida Moitinho, additional, Beskow, Samuel, additional, Miguel, Pablo, additional, Lima, Cláudia Liane Rodrigues de, additional, and Bressiani, Danielle de Almeida, additional
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- 2021
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9. Impacts of land use and land cover on sediment production in a tropical peri-urban water source area.
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Silva Jovino, Estephania, Angelini, Ronaldo, Wilmer Costa, Carlos, de Almeida Bressiani, Danielle, and Vieira da Cunha, Karina Patrícia
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LAND use ,MUNICIPAL water supply ,WATER quality ,MATHEMATICAL models ,DECISION making - Abstract
The change of natural landscapes by anthropic activities is the main reason for the erosion deepening. Thus, it is necessary to know the processes that determine the hydrological balance to avoid erosion in this context. Due to the complexity of a basin and the need of making predictions, the development of mathematical models is essential for decision making. Among the existing models, the Soil and Water Assessment Tool (SWAT) is one of the most utilized models worldwide. Thus, the present study aims to compare the land use between different periods and quantify the soil loss in a basin (Feijão River, in the Brazilian southeast), using the SWAT + model, as also to provide guidance to decision making by determining priority areas to improve water quality. The simulation was performed by dividing the basin into sub-basins and assigning multiple HRUs. The metrics used to analyze the model's efficiency indicate that the results were satisfactory, Nash-Sutcliffe (NSE) of 0.53 and 0.54 for calibration and validation of streamflow, respectively. The model represented in this study can help guide future planning for land use and occupation of the basin, enabling the forecast of different scenarios and their possible impacts on water production. [ABSTRACT FROM AUTHOR]
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- 2022
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10. MODELAGEM HIDRO-METEOCEANOGRÁFICA PARA VIAS FLUVIAIS E PORTOS - PREHVIA
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Olivas Kaji, Aline, primary, De Almeida Bressiani, Danielle, additional, Gamboa-Medina, Maria Mercedes, additional, Cossetin Ferreira, Camila, additional, and Salgueiro Donato Bacelar, Luiz Carlos, additional
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- 2019
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11. Hydrologic and hydraulic simulations for use in macrodrainage designs for gully management and recovery
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Sampaio, Ligia de Freitas, Rodrigues, Valéria Guimarães Silvestre, Bressiani, Danielle de Almeida, and Ferreira, Rogério Resende Martins
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Erosión ,Erosion ,SCS method ,drainage system ,método SCS ,Nazareno (MG) ,sistema de drenaje - Abstract
Runoff on susceptible terrains that is not associated with adequate drainage causes soil erosion, as gullies. Gullies and drainage continue to be major issues in reclamation projects since soil erosion can be reactivated after the application of recovery measures. This paper describes a low-cost project framework for macrodrainage for a gully in Nazareno (MG, Brazil) to provide support to gully management and recovery. We used a simple methodology with the application of Geographic Information Systems (GIS) and concentrated hydrologic and hydraulic models (freely available softwares). The basin has steep slopes (8 to 20%) and the water flows mainly to the northwest, which contribute to exacerbate erosion problems. We studied the effect of environmental conditions on different simulations to elaborate a drainage system project using the free software tools. Therefore, the findings of this paper can aid gully management and recovery for this and other areas with similar issues. Resumen Escurrimiento superficial en terrenos susceptibles sin asociación con el drenaje adecuado causa erosión del suelo. Las cárcavas y el drenaje son importantes para proyectos de recuperación, ya que la erosión puede ser reactivada después de la aplicación de técnicas de recuperación. Describimos un proyecto de bajo costo para macrodrenaje en Nazareno (MG, Brasil), proporcionando suporte a la gestión y recuperación de cárcavas. Utilizamos una metodología con la aplicación de Sistemas de Información Geográfica (SIG) y modelos hidrológicos y hidráulicos concentrados (softwares libres). La cuenca ha presentado pendientes elevadas (8 a 20%); el flujo de agua es direccionado preferentemente al noroeste, contribuyendo al agravamiento de la erosión. Estudiamos el efecto de condiciones medioambientales en diferentes simulaciones para un proyecto de sistema de drenaje usando las herramientas de softwares. Así pues, los resultados de este artículo pueden auxiliar la gestión y recuperación de cárcavas para esta y otras áreas con problemas similares.
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- 2017
12. Hydrological simulation of a small forested catchment under different land use and forest management.
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Oliveira, Laís Thomazini, Cecílio, Roberto Avelino, Zanetti, Sidney Sára, Loos, Rodolfo Araujo, de Almeida Bressiani, Danielle, and Srinivasan, Raghavan
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LAND management ,FORESTED wetlands ,FOREST management ,TROPICAL climate ,PLANT-water relationships ,LAND use - Abstract
This paper describes the assessment of the SWAT hydrological model to reproduce continuous daily streamflow and simulate scenarios of forest management for a small catchment under tropical climate in Aracruz, Brazil. The main land use of the catchment consisted of eucalyptus cultivation. The SWAT parameters were calibrated and validated using daily hydrologic and meteorological data from 1997 to 2004. The statistical indices of SWAT validation (NS = 0.74, PBIAS = -14.34%, RSR = 0.51) show that SWAT performance was satisfactory in this application. Different land use and forest management scenarios were simulated with the aim of assessing their influence over the streamflow. The scenarios were: catchment under eucalyptus cultivation with three different forest managements and catchment under the native forest (Atlantic Rainforest). The scenarios simulations did not show significant changes in the longterm average streamflow. Minimum, maximum, and average annual streamflows were higher for eucalyptus scenarios compared to the native forest scenario. These results should be carefully applied to other watersheds as they reflect soil, landscape, and climate characteristics, as well as the geographic location, size, and use of water of the plantings and other vegetation. [ABSTRACT FROM AUTHOR]
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- 2020
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13. Hydrologic and hydraulic simulations for use in macrodrainage designs for gully management and recovery
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de Freitas Sampaio, Ligia, Guimarães Silvestre Rodrigues, Valéria, de Almeida Bressiani, Danielle, Resende Martins Ferreira, Rogério, de Freitas Sampaio, Ligia, Guimarães Silvestre Rodrigues, Valéria, de Almeida Bressiani, Danielle, and Resende Martins Ferreira, Rogério
- Abstract
Runoff on susceptible terrains that is not associated with adequate drainage causes soil erosion, as gullies. Gullies and drainage continue to be major issues in reclamation projects since soil erosion can be reactivated after the application of recovery measures. This paper describes a low-cost project framework for macrodrainage for a gully in Nazareno (MG, Brazil) to provide support to gully management and recovery. We used a simple methodology with the application of Geographic Information Systems (GIS) and concentrated hydrologic and hydraulic models (freely available softwares). The basin has steep slopes (8 to 20%) and the water flows mainly to the northwest, which contribute to exacerbate erosion problems. We studied the effect of environmental conditions on different simulations to elaborate a drainage system project using the free software tools. Therefore, the findings of this paper can aid gully management and recovery for this and other areas with similar issues., Escurrimiento superficial en terrenos susceptibles sin asociación con el drenaje adecuado causa erosión del suelo. Las cárcavas y el drenaje son importantes para proyectos de recuperación, ya que la erosión puede ser reactivada después de la aplicación de técnicas de recuperación. Describimos un proyecto de bajo costo para macrodrenaje en Nazareno (MG, Brasil), proporcionando suporte a la gestión y recuperación de cárcavas. Utilizamos una metodología con la aplicación de Sistemas de Información Geográfica (SIG) y modelos hidrológicos y hidráulicos concentrados (softwares libres). La cuenca ha presentado pendientes elevadas (8 a 20%); el flujo de agua es direccionado preferentemente al noroeste, contribuyendo al agravamiento de la erosión. Estudiamos el efecto de condiciones medioambientales en diferentes simulaciones para un proyecto de sistema de drenaje usando las herramientas de softwares. Así pues, los resultados de este artículo pueden auxiliar la gestión y recuperación de cárcavas para esta y otras áreas con problemas similares.
- Published
- 2017
14. Hydrologic and hydraulic simulations for use in macrodrainage designs for gully management and recovery
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De Freitas Sampaio, Ligia, primary, Guimarães Silvestre Rodrigues, Valéria, additional, De Almeida Bressiani, Danielle, additional, and Resende Martins Ferreira, Rogério, additional
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- 2017
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15. INCENTIVOS PARA CONSERVAÇÃO DO SOLO E DOS RECURSOS HÍDRICOS A PARTIR DA PEGADA HÍDRICA (WATER FOOTPRINT)
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Rodrigues, Dulce Buchala Bicca, Bressiani, Danielle De Almeida, and Oliveira, Paulo Tarso Sanches
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- 2011
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16. Coping with hydrological risks through flooding risk index, complex watershed modeling, different calibration techniques, and ensemble streamflow forecasting
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Bressiani, Danielle de Almeida, primary
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17. Effects of spatial and temporal weather data resolutions on streamflow modeling of a semi-arid basin, Northeast Brazil.
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de Almeida Bressiani, Danielle, Srinivasan, Raghavan, Jones, Charles Allan, and Mendiondo, Eduardo Mario
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STREAMFLOW , *SPATIOTEMPORAL processes , *ARID regions , *HYDROLOGY , *WATER quality , *MATHEMATICAL models - Abstract
One major difficulty in the application of distributed hydrological models is the availability of data with sufficient quantity and quality to perform an adequate evaluation of a watershed and to capture its dynamics. The Soil & Water Assessment Tool (SWAT) was used in this study to analyze the hydrologic responses to different sources, spatial scales, and temporal resolutions of weather inputs for the semi-arid Jaguaribe watershed (73 000 km²) in northeastern Brazil. Four different simulations were conducted, based on four groups of weather and precipitation inputs: Group 1- SWAT Weather Generator based on monthly data from four airport weather stations and daily data based on 124 local rain gauges; Group 2- daily local data from 14 weather stations and 124 precipitation gauges; Group 3- Daily values from a global coupled forecast model (NOAA's Climate Forecast System Reanalysis - CFSR); and Group 4- CFSR data with 124 local precipitation gauges. The four simulations were evaluated using multiple statistical efficiency metrics for four streamflow gauges, using: Nash-Sutcliffe coefficient (NSE), determination coefficient (R²), the ratio of the root mean square to the standard deviation of the observed data (RSR), and the percent bias (PBIAS). The Group 4 simulation performed best overall (provided the best statistical values) with results ranked as "good" or "very good" on all four efficiency metrics suggesting that using CFSR data for weather parameters other than precipitation, coupled with precipitation data from local rain gauges, can provide reasonable hydrologic responses. The second best results were obtained with Group 1, which provided "good" results in three of four efficiency metrics. Group 2 performed worse overall than Groups 1 and 4, probably due to uncertainty related to daily measures and a large percentage of missing data. Groups 2 and 3 were "unsatisfactory" according to three or four of the efficiency metrics, indicating that the choice of weather data is very important. [ABSTRACT FROM AUTHOR]
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- 2015
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18. Review of Soil and Water Assessment Tool (SWAT) applications in Brazil: Challenges and prospects.
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de Almeida Bressiani, Danielle, Gassman, Philip W., Fernandes, Josimar Gurgel, Pospissil Garbossa, Luis Hamilton, Srinivasan, Raghavan, Bonumá, Nadia Bernardi, and Mendiondo, Eduardo Mario
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ECOHYDROLOGY , *WATERSHEDS , *WATER quality , *DECISION support systems , *SOILS - Abstract
The geographical extent of Brazil exceeds 8.5 million km² and encompasses a complex mix of biomes and other environmental conditions. Multiple decision support tools are needed to help support management of these diverse Brazilian natural resources including ecohydrological models. The use of the Soil and Water Assessment Tool (SWAT) ecohydrological watershed-scale model in Brazil has increased greatly during the past decade. Well over 100 SWAT studies were identified in this review which have been published during 1999 to 2015 in Brazilian and international journals, conference proceedings, and as theses or dissertations, many of which are written in Portuguese. The majority of these studies (102 total) are reviewed here as part of an extensive survey covering the 1999 to 2013 time period. Temporal and spatial distributions, a summary of hydrologic calibration and validation results and a synopsis of the types of applications that were performed are reported for the surveyed studies. A smaller subset of recent Brazilian studies published in English between 2012 and 2015 in scientific journals are also reviewed, with emphasis on hydrologic and sediment transport testing results as well as scenario applications that were performed. The majority of the surveyed SWAT studies was performed for watersheds located in the South and Southeast regions of Brazil (67%) and was conducted in the context of academic research. Nearly 50% of the surveyed studies reported only hydrologic results. Similar trends were found for the subset of more recent English publications. Limited studies have been reported that describe applications of SWAT in Brazil by private firms or government agencies; this review indicates that the potential exists for increased numbers of such studies in the future. However, there is evidence that a lack of accessibility to adequate quality input data is a possible hindrance to the more general use of SWAT for watershed applications in Brazil. [ABSTRACT FROM AUTHOR]
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- 2015
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19. Best management practices to reduce soil erosion and change water balance components in watersheds under grain and dairy production
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Silva, Thais Palumbo, Bressiani, Danielle, Ebling, Éderson Diniz, and Reichert, José Miguel
- Abstract
Soil erosion and sedimentation are among the most serious global environmental problems. Soil and water conservation measures have been proven effective ways to reduce soil loss. The objective of this study was to evaluate the impact of three approaches of soil and water conservation measures (soil management, vegetative measures, and structural practices) on soil erosion and water balance of two paired agricultural watersheds located in Southern Brazil. Streamflow and sediment monitoring was carried out from 2016 to 2019 in the two small paired agricultural watersheds; called North watershed (NW) and South watershed (SW). Modeling using Soil & Water Assessment Tool (SWAT) was performed to simulate individual (nine scenarios) and combined (four scenarios) best management practices (BMPs), by including the three approaches. Among the nine individual BMP scenarios, the most effective in reducing soil erosion was crop rotation and cover crop (sediment yield, SY, reduction of 38.4 for NW, and 28.8% for SW). Among the four combined scenarios, the association of all conservation approaches was the most effective in reducing soil erosion (SY reduction of 46 for NW, and 41.5% for SW), followed by the vegetative measures scenario (SY reduction of 43.5 and 34.1% for NW and SW). All combined scenarios increased infiltration and subsurface water components, and decreased surface runoff. The findings of this study can help farmers and policymakers choosing appropriate BMPs to reduce current soil erosion problems and promote water and soil conservation.
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- 2023
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20. Modeling the impact of land use and soil management on hydrological and soil erosion processes in small watersheds
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Silva, Thais Palumbo, Reichert, José Miguel, Bressiani, Danielle de Almeida, Suzuki, Luis Eduardo Akiyoshi Sanches, Silva, Marx Leandro Naves, and Valente, Mirian Lago
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Práticas conservacionistas ,CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO [CNPQ] ,Conservation measures ,SWAT ,Temporal dynamics ,Dinâmica temporal - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Hydrological and soil erosion processes are affected by numerous factors such as land use and soil management. Understanding the impact of land use and management on hydrological and soil erosion processes at the watershed scale depends on several environmental interactions. Hydrological models are tools to represent these interactions in space and time by detecting the main processes in different time scales and by simulating scenarios with different conditions. Therefore, the objective of this study was to understand the impact of land use and soil management on hydrological and soil erosion processes in small watersheds through monitoring techniques and hydrological modeling. Two studies were carried out in four small watersheds (~1 km2), located in the plateau and “Campanha” regions of Rio Grande do Sul state, Brazil. The first study (paper 1) quantified the impact of land use in four small watersheds under the three main economic uses (agriculture, pasture, and planted forest) in three-time steps (monthly, daily, and hourly) using the SWAT model. The SWAT model performed well in all watersheds and time steps. The agricultural watersheds showed the highest sediment and water yield values compared to Grassland and Planted Forest watersheds. The main detected hydrological processes varied in the different time steps and watersheds. Hourly dominant processes were linked to soil properties, and monthly and daily dominant processes were associated with subsurface water flow. The second study (paper 2) evaluated the effects of different conservation measures (soil management, vegetative practices and mechanical methods) in two paired agricultural watersheds: nine scenarios with individual conservation measures and four with association of the different conservation measures approaches. The crop rotation and cover crops were the best individual measures to reduce soil erosion in both watersheds. However, the association of conservation measures showed increased effectiveness to reduce sediment yield, especially the association of the three conservation approaches. The association of the three approaches reduced soil erosion by up to 60% in sub-watersheds and optimize water balance components. The outcomes of these studies indicate that land use and soil management are factors that directly affect hydrological and soil erosion processes in different time and space scales. Furthermore, modeling at the watershed scale is a viable tool to disseminate adequate land use and soil management, and to decrease impacts on soil and water degradation. Os processos hidrológicos e de erosão do solo são afetados por inúmeros fatores, dentre eles, o uso e manejo do solo. Entender o impacto do uso e manejo do solo nos processos hidrológicos e erosivos na escala de bacias hidrográficas depende de diversas interações do ambiente. A modelagem hidrológica é uma importante estratégia, por possibilitar representar adequadamente essas interações no espaço e no tempo, através da detecção dos processos que atuam em diferentes escalas de tempo e simulação de cenários com diferentes condições. Diante disso, o objetivo deste trabalho foi contribuir para o entendimento do impacto do uso e manejo do solo nos processos hidrológicos e erosivos em pequenas bacias hidrográficas, por meio da combinação de técnicas de monitoramento e modelagem matemática. Foram realizados dois estudos em quatro pequenas bacias hidrográficas (~1 km²), localizadas na região do Planalto e Campanha do Rio Grande do Sul. No primeiro estudo (artigo 1) foi quantificado o impacto do uso do solo na produção de sedimentos e água nas quatro pequenas bacias hidrográficas sob os três principais usos econômicos (agricultura, pastagem e floresta plantada) em três intervalos de tempo (mensal, diário e horário) utilizando o modelo Soil & Water Assessment Tool (SWAT). O modelo SWAT obteve um bom desempenho nas simulações em todas as bacias hidrográficas e intervalos de tempo. As bacias hidrográficas agrícolas apresentaram maior produção de sedimentos e água em relação as bacias sob pastagem e floresta plantada. Os principais processos hidrológicos detectados variaram nos diferentes intervalos de tempo e nas bacias hidrográficas, apresentando uma maior sensibilidade dos processos relacionados às propriedades dos solos na escala horária, e processos relacionados ao fluxo subsuperficial de água nas escalas de tempo mensal e diária. No segundo estudo (artigo 2) foram avaliados os efeitos das diferentes abordagens de práticas de conservação do solo e da água (práticas edáficas, vegetativas e mecânicas) nas bacias hidrográficas agrícolas: 9 cenários com práticas individuais e 4 com a associação das diferentes abordagens. A rotação de culturas e plantas de cobertura foi a prática individual de melhor eficiência em reduzir a produção de sedimentos em ambas as bacias hidrográficas. Os quatro cenários de associação das práticas conservacionistas mostraram ser mais eficaz, em especial a associação das três abordagens conservacionistas. A associação das três abordagens reduziu em até 60% da perda de solo nas sub-bacias das bacias agrícolas e também, otimizou os componentes do balanço hídrico. Os resultados dos dois estudos indicam que o uso e manejo dos solos são fatores que afetam diretamente os processos hidrológicos e de erosão do solo em diferentes escalas temporais e espaciais. Além disso, a modelagem hidrológica na escala de bacia hidrográfica é uma ferramenta viável para difundir o adequado manejo e uso do solo e reduzir os impactos da degradação do solo e da água.
- Published
- 2022
21. Land-use changes and impacts on simulating water-related components in a subtropical agricultural river basin
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Lima, Edberto Moura, Reichert, José Miguel, Mehdi-schulz, Bano, Bressiani, Danielle, Marques, Marcia Cristina Mendes, and Crepaldi, Maria Otávia
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Dinâmica hídrica ,Bacia hidrográfica ,CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL [CNPQ] ,Land use ,Estrutura da paisagem ,SWAT ,Landscape structure ,Uso e cobertura da terra ,Watershed ,Water dynamics - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Land use and land cover (LULC) changes are one of the main driving forces of Global Change, shaping the landscape and impacting nature`s contribution to people, including water-related services. Different types of land use and their management practices influence hydrology at both field and catchment scales. Therefore, understanding the dynamic of LULC and their effect on the hydrological components are vital to mitigate their impacts on the natural ecosystem and water resources. Here, we investigated the spatial and temporal dynamics of the Guaporé watershed (2,490 km²), southern Brazil, and their effect on water resources. For a better understanding, the study was divided into three chapters. First, the spatial and temporal differences in land-use distribution were computed by applying landscape metrics. Then, an autocorrelation analysis was used to identify trends in the land-use changes, followed by building up a cellular automata model to assess the main drivers of land use. Finally, we simulated the response of hydrological processes to LULC changes with the Soil & Water Assessment Tool (SWAT). The overall results showed that the land use has dramatically changed in the Guaporé watershed. Most of the changes were explained at the local level by social and economic factors, where the intensification of agricultural activity has promoted homogenization and reduced landscape complexity. These observed changes highlighted the importance to consider a dynamic land-use to assess water resources. Although both static and dynamic scenarios produced a “satisfactory” simulation of historical discharge, an analysis based on a single baseline map could result in an unrealistic representation of water balance since different land-use types imply changes in water infiltration, runoff, plant canopy, among others. Finally, our results highlighted that controlling LULC change is essential for long-term water management quantifying water resources. As mudanças de uso e cobertura da terra (LULC) são um dos principais fatores de alteração dos ecossistemas globais, moldando não apenas a paisagem, mas também impactando a contribuição da natureza para as pessoas, incluindo os serviços relacionados à água. Diferentes tipos de uso da terra e de manejo influenciam a hidrologia tanto em escala local quanto em escala de bacias hidrográficas. Portanto, compreender a dinâmica do LULC e como elas afetam os componentes hidrológicos é vital para mitigar seus impactos no ecossistema natural e nos recursos hídricos. Nesse trabalho foi investigada a dinâmica espacial e temporal da bacia do Guaporé (2.490 km²), sul do Brasil, e seu efeito sobre os recursos hídricos. Para um melhor entendimento, o estudo foi dividido em três capítulos. Primeiro, as diferenças espaciais e temporais na distribuição do uso do solo foram computadas aplicando diferentes métricas de paisagem. Em seguida, uma análise de autocorrelação temporal e espacial foi aplicada para identificar tendências na mudança do uso da terra, seguida pela construção de um modelo de autômatos celulares para avaliar os principais fatores de LULC. Finalmente, simulamos a resposta dos processos hidrológicos às mudanças de LULC, utilizando o Soil & Water Assessment Tool (SWAT). Os resultados mostraram mudanças no uso da terra ao longo do tempo na bacia do rio Guaporé. A maioria das mudanças é explicada em nível local por fatores sociais e econômicos, onde a intensificação da atividade agrícola promoveu a homogeneização e reduziu a complexidade da paisagem. Estas mudanças observadas destacaram a importância de se considerar a dinâmica da paisagem para avaliar os recursos hídricos. Embora, tanto o cenário estático quanto o dinâmico tenham produzido uma simulação "satisfatória" das vazões históricas, uma análise baseada em um único mapa de base poderia resultar em uma representação irrealista do balanço hídrico, uma vez que diferentes tipos de uso da terra implicam mudanças na infiltração e escoamento de água, interceptação pela copa das plantas, entre outros. Finalmente, nossos resultados destacaram que o controle da mudança de LULC é essencial para quantificar os recursos hídricos e para a gestão da água a longo prazo.
- Published
- 2022
22. Linkages between Water and Forests in South American Watersheds under Restoration
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Taffarello, Denise, de Almeida Bressiani, Danielle, Guzman Arias, Diego Alejandro, Cunha, Davi, Calijuri, Maria Do Carmo, and Mendiondo, Eduardo
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Science / Earth Sciences - Abstract
Water security is threatened by the rapid growth of the human population in areas where there were native forests before coupled with climate change scenarios. One of the main elements which ensures water security is water stored in soil, which is fundamental for maintaining ecohydrological processes at the watershed scale under forest land-use change. In South America, aiming to restore and recover changing catchment areas, best management practices (BMP) have been widely proposed as a strategy for water-forest resource sustainability. Based on forest evapotranspiration demand, this chapter presents fundamental concepts related to soil-water-forest cycles, watershed restoration, and case studies of BMPs in South American watersheds (e.g., Brazilian and Colombian projects for watershed conservation or restoration). It has become clear that there is an opportunity in setting baseline data and quantifying the effectiveness of these BMPs. By using ecohydrological monitoring and suitable indicators of these BMPs in the long term, an integrated understanding of water-forest relationships is needed. Furthermore, the more successful watershed management projects are, the more effective decision-making regarding BMP linking water and forests is.
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- 2022
23. Hydrological effects evaluation resulting from the application of scenarios proposed by the government : Case study: environmental protection area of Campinas (SP)
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Galbetti, Marcus Vinícius, 1990, Zuffo, Antonio Carlos, 1963, Bressiani, Danielle de Almeida, Teixeira Filho, José, Fan, Fernando Mainardi, Jacomazzi, Marco Antonio, Universidade Estadual de Campinas. Faculdade de Engenharia Civil, Arquitetura e Urbanismo, Programa de Pós-Graduação em Engenharia Civil, and UNIVERSIDADE ESTADUAL DE CAMPINAS
- Subjects
Hydrologic models ,Bacias hidrográficas ,Hidrologia ,Gestão de recursos hídricos ,Management of water resources ,Watersheds ,Hydrology ,Computer simulation ,Modelos hidrológicos ,Simulação (Computadores) - Abstract
Orientador: Antonio Carlos Zuffo Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo Resumo: Entre os anos hidrológicos de 2013 e 2015, a região sudeste brasileira vivenciou um severo período de estiagem, conhecido como Crise Hídrica. A principal característica deste período foi a depleção quantitativa dos sistemas produtores de água para abastecimento público, em especial o Sistema Produtor de Águas do Cantareira, responsável por abastecer as Regiões Metropolitanas de São Paulo e de Campinas. Os impactos causados pela Crise Hídrica variaram de prejuízos bilionários em diversos setores produtivos ao desabastecimento da população. Em Campinas, a Prefeitura Municipal elaborou e implantou o Plano Municipal de Recursos Hídricos (PMRH) com a finalidade mitigar os impactos da Crise Hídrica e reduzir os impactos decorrentes de novas crises de desabastecimento. Este plano consiste, dentre outras ações, principalmente no reflorestamento das Áreas de Preservação Permanente (APP) sobretudo da Área de Proteção Ambiental de Campinas (APA Campinas). Entretanto, a APA Campinas é um recorte político-administrativo e não hidrológico, sendo necessária a delimitação hidrológica de sua área de contribuição em Campinas, a qual foi denominada de bacia APA-Atibaia. Dessa forma, o presente trabalho avaliou as prováveis mudanças nas vazões e nos componentes do balanço hídrico decorrentes da aplicação de 04 cenários de reflorestamento na bacia APA Atibaia, os quais foram propostos com base no PMRH: Recomposição das APP somente da APA Campinas (C1); Recomposição das APP de toda a bacia APA-Atibaia (C2); Revegetação integral de toda a região da APA Campinas (C3); e, Revegetação integral da Bacia APA-Atibaia (C4). Para a execução dessa tarefa foi empregado o modelo Soil and Water Assessment Tool (SWAT). Inicialmente, o modelo SWAT da bacia APA-Atibaia foi calibrado e validado para os postos de monitoramento fluviométrico 3D-006 e 3D-003 do Departamento de Águas e Energia Elétrica do Estado de São Paulo para o passo temporal mensal, utilizando o cenário atual de uso e ocupação do solo (cenário base – C0), obtendo índices de eficiência classificados como "Muito Bom" e "Bom", segundo as métricas utilizadas. Os resultados obtidos no modelo SWAT, com base nas premissas adotadas na modelagem, mostraram redução estatisticamente significante do Escoamento Superficial Direto dos cenários C2, C3 e C4 e de Conteúdo de Água do Solo em todos os cenários em relação a C0. O Escoamento de Base e a Evapotranspiração, por sua vez, não apresentaram diferenças estatisticamente significantes em relação a C0. Por fim, a Quantidade de Água produzida pela bacia APA-Atibaia obteve reduções estatisticamente significantes em C4. Em relação às vazões de referência, os resultados não mostraram diferenças estatisticamente significantes em todos os cenários analisados. Estes resultados abrem espaço para o debate da necessidade de revisão das ações propostas no PMRH. Por fim, frisa-se a necessidade de revisão contínua das premissas adotadas no modelo SWAT de modo a incrementar a representação dos processos hidrológicos e agroflorestais, melhorando as estimativas do modelo e, consequentemente, facilitando o processo de tomada de decisão Abstract: During the hydrological years of 2013 and 2015, the Brazilian southeast region of Brazil experienced a severe drought, known as the Water Crisis. The main characteristic of this period was the quantitative depletion of the water production systems for water supply, especially the Cantareira Water Production System, responsible for supplying the Metropolitan Regions of São Paulo and Campinas. The impacts originated by the Water Crisis ranged from billionaire losses in various productive sectors due to the lack of public water supply. In Campinas, the Municipal Government proposed and implemented the Municipal Water Resources Plan (PMRH) with the aim of mitigating the impacts of the Water Crisis and reducing the impacts resulting from new future droughts. This plan consists, among other actions, mainly in the reforestation of Permanent Preservation Areas (APP), especially the Campinas Environmental Protection Area (APA Campinas). However, APA Campinas is a political-administrative territorial and not a hydrological territorial cut, requiring the hydrological delimitation of its contribution area, which was called APA-Atibaia basin. This thesis evaluated the probable changes in the flows and in the water balance components resulting from the application of 04 reforestation scenarios in the APA Atibaia basin. These scenarios were proposed based on the PMRH: Revegetation of APPs only in the APA Campinas (C1); Revegetation of APPs in the entire APA-Atibaia basin (C2); Integral revegetation of the entire APA Campinas region (C3); and Integral revegetation of the APA-Atibaia Basin (C4). To perform this task, the Soil and Water Assessment Tool (SWAT) model was used. Initially, the SWAT model of the APA-Atibaia basin was calibrated and validated for the flow monitoring stations 3D-006 and 3D-003 of the Department of Water and Electricity of the State of São Paulo for the monthly time step, using the current land use and land cover map (base scenario – C0), obtaining efficiency indices classified as "Very Good" and "Good", according to the metrics applied. The results obtained in the SWAT model, based on the assumptions adopted in the modeling, showed a statistically significant reduction in direct runoff in scenarios C2, C3 and C4 and in Soil Water Content in all scenarios in relation to base scenario. The Base Flow and Evapotranspiration did not present statistically significant differences in relation to C0. Finally, the Amount of Water produced by the APA-Atibaia basin obtained statistically significant reductions in C4. Regarding the reference flows, the results did not show statistically significant differences in all analyzed scenarios. These results open space for the debate on the need to review the actions proposed in the PMRH. Finally, we emphasize the need for a continuous review of the assumptions adopted in the SWAT model to increase the representation of hydrological and agroforestry processes, improving the model's estimates and, consequently, making easier the decision-making process Doutorado Recursos Hídricos, Energéticos e Ambientais Doutor em Engenharia Civil
- Published
- 2021
24. Avaliação da mudança do uso da terra recente associada a dinâmica de expansão da cana-de-açúcar e seus efeitos sobre a disponibilidade dos recursos hídricos
- Author
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Hernandes, Thayse Aparecida Dourado, 1985, Seabra, Joaquim Eugênio Abel, 1981, Scarpare, Fábio Vale, Bressiani, Danielle de Almeida, Pissarra, Teresa Cristina Tarlé, Corrêa, Simone Toni Ruiz, Walter, Arnaldo César da Silva, Universidade Estadual de Campinas. Faculdade de Engenharia Mecânica, Programa de Pós-Graduação em Planejamento de Sistemas Energéticos, and UNIVERSIDADE ESTADUAL DE CAMPINAS
- Subjects
Water resources ,Sustainability ,Ethanol ,Etanol ,Sustentabilidade ,Pegada hídrica ,Water footprint ,Modelagem ,Modelling ,Abastecimento de água - Abstract
Orientadores: Joaquim Eugênio Abel Seabra, Fabio Vale Scarpare Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica Resumo: Nos últimos anos, houve uma significativa expansão das áreas cultivadas com cana-de-açúcar, que ocorreu sob diferentes dinâmicas e escalas, substituindo as mais diversas classes de uso da terra. Visto que as mudanças do uso da terra (MUT) podem alterar os processos hidrológicos, esse crescimento tem levantado questionamentos sobre os efeitos da expansão da cana-de-açúcar na disponibilidade dos recursos hídricos. Uma revisão da literatura sobre o assunto, no Brasil, mostrou que, embora os resultados tenham apontando as altas taxas de evapotranspiração da cana-de-açúcar como um risco, os estudos foram, em sua maioria, qualitativos, mostrando mais direções e indícios do que evidências quantitativas. Sendo assim, o objetivo principal desta tese foi abordar as implicações da MUT associada à expansão da cana-de-açúcar na disponibilidade dos recursos hídricos, propondo um esquema de avaliação que auxiliasse na obtenção de resultados mais conclusivos. Foram escolhidas duas bacias brasileiras: uma em São Paulo (MM) e outra em Goiás (FMA) e as análises foram feitas através do modelo Soil and Water Assessment Tool (SWAT), que foi submetido a um extenso processo de calibração e, assim, validado para as duas bacias, para as quais também os componentes do balanço hídrico (CBH) foram avaliados de forma integrada. O uso de um modelo hidrológico semi-distribuído e a avaliação conjunta de seus CBH possibilitaram a obtenção de respostas mais conclusivas, ainda que qualitativas, sobre os impactos das MUT sobre os recursos hídricos nas bacias avaliadas. A estimativa da pegada hídrica permitiu, a nível de bacia, a avaliação dos impactos das MUT na eficiência do uso da água por culturas agrícolas. A cana-de-açúcar apresentou os menores valores de pegada hídrica entre as culturas analisadas, indicando um aumento na eficiência do uso de água por Mg produzido em áreas de expansão. Apesar de possíveis distorções regionais nos custos e preços, a abordagem econômica apresentou diferentes resultados com relação à eficiência do uso da água. Neste caso, a expansão da cana-de-açúcar em relação a outras culturas aumentou a eficiência do uso da água apenas em substituição a culturas de laranja e pastagem. Os impactos exclusivos da expansão da cana-de-açúcar foram avaliados através de cenários no SWAT. Considerando-se a expansão prevista para 2030, as análises indicam que nenhum efeito é esperado na vazão da bacia MM. Cenários com expansão mais intensa apresentaram aumentos na vazão para esta bacia, porém sem mudanças na vazão de referência. Na bacia FMA, a substituição das áreas com cultura anual e pastagem por cana-de-açúcar aumentou a regularidade da vazão, já que foram observados aumentos na estação seca e diminuições na estação chuvosa e, portanto, a vazão de referência também foi positivamente impactada. Considerando que áreas de vegetação nativa e matas ciliares não sejam afetadas, a expansão da cana-de-açúcar favoreceu a disponibilidade de água nas duas bacias. Por fim, embora a disponibilidade de água e o balanço hídrico estejam intrinsecamente ligados às características locais de cada bacia, as simulações indicam que a substituição de culturas anuais e pastagens por cana-de-açúcar parece favorecer a regularidade do regime de escoamento Abstract: Sugarcane areas have expanded in Brazil, with different dynamics, scales and replacing different land uses. Given that land use changes can alter the partitioning of water and affect the hydrological processes, this expansion has raised questions about its effects on water availability. Many studies regard the high evapotranspiration rates in sugarcane areas as a risk to the water resources availability, but the works addressing sugarcane expansion effects on water resources were mostly qualitative and provided rather directions and indications than conclusive answers. Thus, the main objective of this thesis was to address the implications of land use change associated with sugarcane expansion to water resources availability, proposing an analytical framework that could provide reliable results on this subject. The work focused on two Brazilian basins, one in São Paulo (MM) and another in Goiás (FMA) state. The analyses were performed using the Soil and Water Assessment Tool (SWAT), which was subjected to an extensive calibration and validation process for these two basins, allowing the assessment of the main water balance components. The use of a semi-distributed hydrological model and the integrated assessment of its water balance components enabled attaining more conclusive (qualitative) answers about the impacts of the past land use changes in basins stream flows. Through the water footprint (WF) approach, the land use changes impacts on the crops water use efficiency were assessed in a basin level, even though impacts on basin water availability should consider water balance components beyond the evapotranspiration. Sugarcane presented smaller WF values among the assessed crops indicating that its expansion will increase water use efficiency per Mg produced without significant changes in evapotranspiration. Besides regional issues about costs and prices, the economic approach presented different results in terms of water use efficiency. In this case, sugarcane expansion over other crops only increased water use efficiency when displacing orange and pasture lands. Exclusive sugarcane expansion impacts were evaluated through dedicated expansion scenarios in SWAT. Considering the projected sugarcane expansion for 2030, the simulations indicate that no effects on the MM basin stream flow are expected. Scenarios with more significant sugarcane expansion would lead to increases in stream flow, but without changes in the reference flow in MM basin. In FMA basin, the displacement of annual crops and pasture by sugarcane regulated the stream flow as it increases flows in the dry season and decreases them in rainy season. Furthermore, the reference flow was also positively impacted. For both basins, results suggest that sugarcane expansion would favour the water availability, provided that riparian and native vegetation areas are not affected. In general, although water availability and water balance are intrinsically linked to the local characteristics of each basin, it can be inferred that the replacement of annual crops and pasture lands with sugarcane tends to regulate the stream flow regime Doutorado Planejamento de Sistemas Energéticos Doutora em Planejamento de Sistemas Energéticos
- Published
- 2017
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