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Start Over Author "Land Development Department (LDD)" Topic 0105 earth and related environmental sciences
9 results on '"Land Development Department (LDD)"'

1. Relationships between physico-chemical, biological and functional approaches for soil quality assessment. A case study along a gradient of disturbance

Author

Alexis Thoumazeau, Alain Brauman, Kannika Sajjaphan, Marie-Sophie Renevier, Pusanisa Heepngoen, Kasetsart University (KU), Department of Soil Science, Center for Advanced Studies in Agriculture and Food, Land Development Department (LDD), DP-Hevea Research Platform in Partnership (HRPP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Agrosystèmes Biodiversifiés (UMR ABSys), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Université de Lausanne = University of Lausanne (UNIL), This study was financially supported by the LMI LUSES (Dynamic of Land Use Changes and Soil Ecosystem Services), the French National Research Agency (ANR) in the framework of the Heveadapt project (ANR-14-CE03-0012), the French Institute for Natural Rubber (IFC), the companies SIPH, SOCFIN and MICHELIN within the program 'HeveaBiodiv'. Pusanisa Heepngoen PhD financial support was provided by the Royal Golden Jubilee Ph.D. Program (Grant number PHD/0136/2557)., ANR-14-CE03-0012,HEVEADAPT,Comment les plantations familiales peuvent-elles s'adapter aux changements globaux?(2014), Kasetsart University - KU (THAILAND), Kasetsart University, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Université de Lausanne (UNIL)

Subjects
Manihot esculenta, [SDV]Life Sciences [q-bio], Biologie du sol, 010501 environmental sciences, 01 natural sciences, Interactions biologiques, Soil functions, Functional methods, K01 - Foresterie - Considérations générales, Physique du sol, Biofunctool (R), 2. Zero hunger, Acrisol, 04 agricultural and veterinary sciences, Hevea brasiliensis, Propriété biologique, P33 - Chimie et physique du sol, Nutrient cycle, Disturbance (geology), Land management, Soil Science, Context (language use), Soil science, Microbiology, Soil quality, Physico-chemical properties, Qualité du sol, Propriété physicochimique du sol, Functional indicators, Co-inertia analysis, 0105 earth and related environmental sciences, P36 - Érosion, conservation et récupération des sols, Évaluation de l'impact, P34 - Biologie du sol, 15. Life on land, Gestion du sol, Soil structure, 13. Climate action, Insect Science, 040103 agronomy & agriculture, Nematode indices, 0401 agriculture, forestry, and fisheries, Environmental science
Abstract

International audience; The assessment of the impacts of land management on soil quality is crucial in the current environmental context. Among the many approaches available to assess soil quality, most of studies or monitoring programs consist in the measurement of stocks using an additive approach of physical, chemical and biological, parameters. More recently, functional methods have been developed to provide tools which better account the abioticbiotic interactions. The objective of our study was to evaluate and compare the capacity of physico-chemical, biological and functional parameters to assess the effect of land management on soil quality over a gradient of disturbance based on rubber tree plantations in Chachoengsao province, Thailand. Three sets of indicators were applied based on i. soil physico-chemical analyses, ii. biological analyses, based on soil free-living nematode indices iii. functional analyses, with Biofunctool (R) indicators linked to three main soil functions (carbon transformation, nutrient cycling, soil structure maintenance). A soil quality index resulting from the aggregation of each set of indicators into a single score showed that functional assessment was the most sensitive to the gradient of disturbance. Co-inertia analysis between sets revealed a significant relationship between functional analysis and both physico-chemical and biological sets of indicators, whereas the two latter were not related. Our results validated the ability of the functional method to better reflect the complexity of the abiotic-biotic interactions of the soil system.Highlights:• Three sets of soil quality indicators were compared.• Functional indicators were the most sensitive to the gradient of disturbance.• Functional set of indicators was significantly linked to physico-chemical and biological sets.• The functional method Biofunctool® integrate both soil biotic and abiotic components.

Published
2021
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2. Characterization of Pterocarpus macrocarpus (pradoo wood) biochar and its effect on the retention properties of sandy soils in Northeast Thailand

Author

Juthamard Kaiphoem, N. Prakongkep, Robert Gilkes, Erika Valente de Medeiros, Siwaporn Siltecho, Nopmanee Suvannang, José Romualdo de Sousa Lima, Claude Hammecker, Land Development Department (LDD), Universidade Federal Rural de Pernambuco (UFRPE), The University of Western Australia (UWA), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Thailand International Cooperation Agency (TICA), and French National Institute for Sustainable Development (IRD)

Subjects
Adsorption desorption, [SDV]Life Sciences [q-bio], Soil Science, 010501 environmental sciences, [SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study, 01 natural sciences, soil improvement, Biochar, Pterocarpus macrocarpus, biochar, 0105 earth and related environmental sciences, 2. Zero hunger, adsorption-desorption, biology, 04 agricultural and veterinary sciences, 15. Life on land, biology.organism_classification, Pollution, 6. Clean water, soil water storage, leaching, Environmental chemistry, Soil water, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Environmental science, Leaching (metallurgy), Agronomy and Crop Science
Abstract

International audience; Pradoo wood biochar has been tested in order to explore sustainable solutions to the development of agriculture on poor sandy soils in marginal areas in Northeast Thailand. Some basic physicochemical properties of biochar, for example pore size distribution, cation exchange capacity (CEC), specific surface area (SSA), and water and nutrient adsorption, were determined and compared to soil properties in order to determine appropriate biochar application to soil. Pradoo wood biochar showed important adsorption properties with high SSA, CEC and nutrient adsorption. The water retention properties were also improved on the dry end of the water retention curve. Phosphorous and ammonium adsorption-desorption isotherms were established and their respective affinity for the biochar surface was quantified, by the means of a retention index and thermodynamical parameters. We found that despite excellent retention properties, biochar needs to be added in large amounts (between 10 and 70 kg m(-2)) to soil to be able to modify noticeably the resulting soil properties.

Published
2021
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3. Higher runoff and soil detachment in rubber tree plantations compared to annual cultivation is mitigated by ground cover in steep mountainous Thailand

Author

Anneke de Rouw, Margot Neyret, Thibaut Durand, Juraiporn Kaewthip, Karn Trisophon, Jean-Louis Janeau, Christian Valentin, Henri Robain, Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ), Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), School of Computing Science, Simon Fraser University (SFU.ca), Land Development Department (LDD), and Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
Wet season, 010504 meteorology & atmospheric sciences, Ground cover, 01 natural sciences, Rubber trees, Natural rubber, Soil retrogression and degradation, Afforestation, Land use change, 0105 earth and related environmental sciences, Earth-Surface Processes, 2. Zero hunger, 04 agricultural and veterinary sciences, Understory, 15. Life on land, Plant litter, Steep slopes, Agronomy, visual_art, [SDE]Environmental Sciences, 040103 agronomy & agriculture, visual_art.visual_art_medium, Soil erosion, 0401 agriculture, forestry, and fisheries, Environmental science, Surface runoff, Soil conservation, Soil detachment
Abstract

Due to high rainfall erosivity and rapid land-use changes, South-East Asia is one of the hot spots of soil degradation worldwide. In recent decades, several studies showed that the expansion of rubber tree (RT) plantations into previously forested areas has caused a major increase in soil erosion. However, the effects of cropland conversion to RT plantations on surface runoff and soil detachment are still unclear. Here we show that mature RT plantations considerably increase runoff and soil detachment compared to annual crops or young RT plantations with intercrop, mostly due to the absence of understorey. Monitoring 1 m2 microplots over four years in mountainous Northern Thailand, we found that runoff and detachment increased with time since the onset of the rainy season and with rainfall height, but more so in mature RT plantations than in young RT plantations and maize. This led to much higher annual soil detachment in mature RT plantations (5.7 kg/m2 on average) than in maize and young RT plantations with intercrop (0.36 kg/m2). We identified two main factors explaining this difference: first, rubber tree leaf litter, although abundant, seemed ineffective in reducing runoff at the end of the rainy season. Secondly, the cover by low-growing plants in mature rubber tree plantation was usually sparse and provided little protection. In particular we showed that increasing the cover by low-growing plants from quasi-null cover to >31% cover decreased runoff coefficient by 32%. Our results demonstrate that afforestation by RT, at least under current management practices and on steep slopes, is overall detrimental to soil conservation but that its effects could be mitigated by the adoption of less intense weeding practices.

Published
2020
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4. A new in-field indicator to assess the impact of land management on soil carbon dynamics

Author

Victor Baron, Nancy Rakotondrazafy, Alexis Thoumazeau, David Sebag, Alain Brauman, Florent Tivet, M.G. Kibblewhite, Phantip Panklang, Raphaël Marichal, Tiphaine Chevallier, Cécile Bessou, Performance des systèmes de culture des plantes pérennes (UPR Système de pérennes), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Land Development Department (LDD), Cranfield University, Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), 'Long term impact of rubber plantation on soil biodiversity' from the National Research Council of Thailand (NRCT), LMI LUSES (Dynamic of Land Use Changes and Soil Ecosystem Services), the HRPP (Hevea Research Platform in Partnership), the French Institute for Natural Rubber (IFC), the companies SIPH, SOCFIN and MICHELIN within the program 'HeveaBiodiv', ACTAE project (Towards Agroecological Transition in South-East Asia), CANSEA Research Platform, French Agency for Development (AFD), the National Council for Sustainable Development, and the Cambodia Climate Change Alliance – Phase 2 (European Union/Sweden/UNDP), United States Agency for International Development Feed the Future Innovation Labs for Collaborative Research on Sustainable Intensification (Cooperative Agreement No. AID-OAA-L-14-00006, Kansas State University), Centre of Excellence on Sustainable Agricultural Intensification and Nutrition., LCA&Indicator project financed by PT-Smart and CIRAD., Labex Cemeb of Montpellier through the 'Equipe de Recherche Junior' program, and ANR-14-CE03-0012,HEVEADAPT,Comment les plantations familiales peuvent-elles s'adapter aux changements globaux?(2014)

Subjects
P33 - Chimie et physique du sol, Soil test, POXC, F08 - Systèmes et modes de culture, Conservation agriculture, Dynamique des sols, Tropical conditions, Land management, Soil Science, chemistry.chemical_element, Soil science, 010501 environmental sciences, engineering.material, 01 natural sciences, Soil respiration, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Soil carbon dynamics, SituResp®, Temperate climate, 0105 earth and related environmental sciences, 2. Zero hunger, Compost, Évaluation de l'impact, Impact sur l'environnement, 04 agricultural and veterinary sciences, Soil carbon, 15. Life on land, chemistry, Gestion foncière, 040103 agronomy & agriculture, engineering, 0401 agriculture, forestry, and fisheries, Environmental science, In-field indicator, SituResp (R), Carbon
Abstract

The assessment of the impacts of land-use and management on soil organic carbon (SOC) dynamics is a major environmental concern, as the soil carbon cycle underpins key ecosystem services. However, assessments based on short-term SOC dynamics face methodological and experimental difficulties. Hurisso et al. (2016) proposed a method to assess SOC dynamics by coupling two methods: Permanganate Oxidizable Carbon (POXC) and Basal Soil Respiration (BSR). This method has been used in laboratory on dried and re-wetted soil samples from temperate regions mainly. In our study, we adapted this method to the field and proposed a cost-effective in-field indicator combining the POXC and in situ Basal Soil Respiration (SituResp (R) method). We tested the indicator at four study sites (n = 169 points) within various tropical land-use and management contexts based on rubber, soybean and oil palm cropping systems respectively in Thailand, Cambodia and Indonesia. The results demonstrated the relevance, sensitivity and robustness of the POXC-SituResp (R) indicator to characterize the impact of a gradient of disturbance on SOC dynamics. The results also highlighted the potential of conservation agriculture (no-tillage and crops residues) and compost amendments to accumulate SOC. Rock-Eval (R) analysis showed that POXC-SituResp (R) indicator is negatively linked to excess of potentially mineralizable labile carbon. Carbon pools targeted by the POXC were specified by Rock-Eval (R) pyrolysis measurements to be a rather thermal resistant pool of SOC. Our study confirms that the integrated indicator based on POXC and BSR assess a relative carbon stabilization of SOC pools. This indicator can be measured in the field by a rapid and cost-effective method.

Published
2020
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5. The transition from arable lands to rubber tree plantations in northern Thailand impacts weed assemblages and soil physical properties

Author

Karn Trisophon, Christian Valentin, K. Jumpa, B. Soulileuth, Margot Neyret, Henri Robain, A. de Rouw, Institut de Recherche pour le Développement (IRD [Réunion]), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Institut d'écologie et des sciences de l'environnement de Paris (iEES), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA), Sorbonne Universités (COMUE), Institut de Recherche pour le Développement, Partenaires INRAE, Land Development Department (LDD), ANR HeveAdapt project of the French Agence Nationale de la Recherche [ANR-14-CE03-0012-04], and Region Ile-de-France

Subjects
010504 meteorology & atmospheric sciences, weed community, [SDV]Life Sciences [q-bio], Biodiversity, Soil Science, Upland rice, Biology, 01 natural sciences, land cover, 0105 earth and related environmental sciences, 2. Zero hunger, soil erosion, Land use, 04 agricultural and veterinary sciences, 15. Life on land, Pollution, South-East Asia, Agronomy, Soil conservation, Soil water, [SDE]Environmental Sciences, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Species richness, Arable land, Weed, Agronomy and Crop Science, rubber tree
Abstract

International audience; In South-East Asia, rapid land use changes in recent decades have raised concerns for biodiversity and soil conservation. Weeds provide many ecosystemic services for soil protection and support biodiversity, and could mitigate the negative effects of intensification. We investigated the changes in weed assemblages and weed-soil interactions on a chronosequence from annual crops to mature rubber tree plantations. We sampled five fields for each of four land uses in mountainous northern Thailand (rainfed upland rice, maize, young rubber tree (RT) intercropped with maize, and mature RT). We characterized weed assemblages (abundance, richness) and soil properties (bulk density, water, carbon and nitrogen content). Rice had the most diverse and abundant weed assemblages. Weed assemblages differed between (i) rice, (ii) maize and young RT with maize and (iii) mature RT. Soil water content was the highest in mature RT. Other soil properties varied strongly within and among fields, and did not vary significantly among land uses. Water and nitrogen content increased overall with living soil cover but decreased with weed species richness in mature RT. Such interactions could provide a basis for sustainable weeding practices favourable to soil and biodiversity conservation.

Published
2018
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6. Salinity and organic amendment effects on methane emission from a rain-fed saline paddy field

Author

Jean-Luc Maeght, Patcharee Saenjan, Cécile Quantin, Olivier Grünberger, Sakulrat Supparattanapan, Land Development Department (LDD), Department of Plant Science and Agricultural Resources, Khon Kaen University [Thailand] (KKU), Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)

Subjects
soil salinity, Soil salinity, [SDV]Life Sciences [q-bio], Amendment, north-east Thailand, Soil Science, methane emission, Plant Science, 010501 environmental sciences, NORTH-EAST THAILAND, SOIL SALINITY, saline paddy, 01 natural sciences, soil, METHANE, METHANE EMISSION, ORGANIC AMENDMENTS, Organic matter, 0105 earth and related environmental sciences, 2. Zero hunger, chemistry.chemical_classification, Soil organic matter, food and beverages, SALINE PADDY SOIL, Soil classification, 04 agricultural and veterinary sciences, 15. Life on land, 6. Clean water, Soil conditioner, Salinity, organic amendments, chemistry, Agronomy, [SDE]Environmental Sciences, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Paddy field, Environmental science, RIZ
Abstract

Correspondence: P. SAENJAN, Department of Plant Science and Agricultural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand. Email: patsae1@kku.ac.th; International audience; Organic amendment is a traditional practice for rehabilitating saline patches in north-east Thailand, but organic matter is known to enhance methane emission. However, a high degree of salinity might mitigate methane emission. The objective of the present study was to quantify the effects of salinity and organic amendments on methane emission from rain-fed paddy fields exposed to increasing salinity. A paddy field on a salt-affected Typic Natraqualfs was selected. Eighteen experimental plots were located in two randomized complete block designs placed inside and outside a saline patch. Each design of nine plots presented three replicates of two different organic amendments and a control treatment without organic amendment. During the rainy season the soil electrical conductivity, measured with an electromagnetic conductivity meter (ECEM), was greater than 300 mS m−1 inside the saline patch, whereas outside the saline patch the values were lower than 200 mS m−1. Rice straw (6.25 t ha−1) and cow manure (8.99 t ha−1), representing similar amounts of carbon, were incorporated. Methane emission from the soil, EC1:5 and soil redox potential (Eh) were monitored during the rice-growing season. High methane emission was mostly associated with low Eh, 48% of the Eh measurements were between −100 mV and −200 mV. In the saline patch, the average methane emission ranged from 251 to 334 mg CH4 m−2 day−1; outside the saline patch the values had a wider range from 209 to 544 mg CH4 m−2 day−1. The addition of rice straw or cow manure significantly enhanced methane emission by an approximate factor of 2.5 outside the saline patch, but did not significantly increase methane emission inside the saline patch. The attenuating effect of salinity on methane emission was particularly strong at the beginning of flooding during the first 20 days after transplanting and at the end of flooding (from 54 days after transplanting). When applied to saline patches, organic amendment did not significantly enhance methane emission in the first year.

Published
2009
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7. Slumping dynamics in tilled sandy soils under natural rainfall and experimental flooding

Author

Siltacho Siwaporn, Christian Hartmann, Jongskul Apichart, Sukanya Promsakha, Guy Richard, Ary Bruand, Hongtao Hao, Anthony R. Dexter, Biogéochimie et écologie des milieux continentaux (Bioemco), Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris), INRA - Unité Science du Sol, Institut National de la Recherche Agronomique (INRA), Land Development Department (LDD), LDD, Institut des Sciences de la Terre d'Orléans (ISTO), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours-Centre National de la Recherche Scientifique (CNRS), Institute of Soil Science and Plant Cultivation, Institute of Soil Science and Plant Cultivation (IUNG), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Unité de Science du Sol (Orléans) (URSols), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Université de Tours (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), and Université de Tours-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Irrigation, bulk density, 010504 meteorology & atmospheric sciences, recompaction, [SDE.MCG]Environmental Sciences/Global Changes, northeast Thailand, Soil Science, Soil science, 01 natural sciences, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, Water content, Slumping, matric potential, 0105 earth and related environmental sciences, Earth-Surface Processes, 2. Zero hunger, Hydrology, Soil classification, 04 agricultural and veterinary sciences, 15. Life on land, overburden pressure, Bulk density, 6. Clean water, Soil structure, Soil water, 040103 agronomy & agriculture, Erosion, tillage, 0401 agriculture, forestry, and fisheries, Environmental science, Agronomy and Crop Science
Abstract

Compaction of tilled layers under the single effect of rainfall or irrigation was called slumping. Slumping affects strongly root development and plant biomass production. It has been observed in different soil types, but sandy soils appear particularly prone to this physical degradation. Our objectives in this study were (i) to measure in the field the changes in soil structure and water status simultaneously, (ii) to study the effects of rainfall and management practices on slumping, and (iii) to propose a conceptual model for sandy soil slumping. An experimental site was selected in Northeast Thailand and we studied the effect of tillage depth and initial water content on slumping dynamic. Plots (9 m × 15 m each) were tilled at (i) two depths (20 and 40 cm, called S and D respectively) in dry conditions, (ii) at 20 cm depth in dry or wet conditions (called Y and W respectively). These plots were submitted to natural rainfall for 20 or 61 days to get different total rainfall amounts (114 and 212 mm respectively). In addition, smaller plots (0.24 m 2 each) were used for experimental flooding irrigation (similar to measured rainfalls, i.e. 100 and 200 mm). Soil bulk density, soil surface elevation, soil water content and matric potential were measured. A decrease in soil elevation was observed in all treatments. In the absence of erosion it was interpreted as a loss of porosity which resulted from slumping. Bulk density increased in all layers of the tilled profile (from 1.38 to 1.57 g cm −3 ). In the surface layer (0–5 cm) this increase was systematically higher compared to deeper layer. No significant difference in final bulk density was found between the S and W treatments, and between the Y and W treatments. Bulk density increased more rapidly in the Y and W treatments than in the S and D treatments, even though the cumulative rainfall was lower. After the flooding experiments, bulk density was higher than after natural rainfall despite similar amounts of water added to the soil.

Published
2011
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8. Consequences of slotting on the pore characteristics of a sandy soil in northeast Thailand

Author

Ary Bruand, V. Hallaire, R. Poss, C. Hartmann, P. Sindhusen, G. Lesturgez, S. Ratana-Anupap, Biogéochimie et écologie des milieux continentaux (Bioemco), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Unité de recherche Science du Sol (SSV), Institut National de la Recherche Agronomique (INRA), Land Dev. Dep., Office of Sci, Institut des Sciences de la Terre d'Orléans (ISTO), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), This work formed part of the research program funded by the Department of Technical and Economic Co-operation (DTEC), funded and operated in Thailand by the Thai Land Development Department (LDD) and the French Research Institute for the Development (IRD) under the approval of the National Research Council of Thailand (NRCT). This work also received financial support from the Department ‘Soutien et Formation' (DSF) from IRD and the technical assistance from several colleagues from the French National Institute for Agronomical Research (INRA)., Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris), INRA - Unité Science du Sol, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)

Subjects
bulk density, [SDE.MCG]Environmental Sciences/Global Changes, Compaction, soil slotting, Soil Science, Soil science, 010501 environmental sciences, 01 natural sciences, image analysis, compaction, mercury porosimetry, Porosity, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, Subsoil, 0105 earth and related environmental sciences, Topsoil, Macropore, 04 agricultural and veterinary sciences, 15. Life on land, Pollution, Soil structure, Soil water, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Soil horizon, Sandy loam, Agronomy and Crop Science, Geology
Abstract

International audience; In the sandy soils of northeast Thailand, root development is generally limited to the topsoil (0–20 cm depth) but a simple slotting intervention (20–40 cm) significantly increased the root frequency in the slotted material (Eslot) compared with the undisturbed subsoil (E horizon). The aim of this study was to investigate the consequences of slotting on the soil structure by analysing at different scales the pore characteristics of the original soil profile and of the soil material inside the slot. These characteristics were studied using bulk density measurements, image analysis of thin sections and mercury porosimetry. Our results showed that the total porosity of the E horizon and Eslot material was similar when measured in 100 cm3 cylinders, but that the pore size distribution had been changed by slotting. The unaltered E horizon contained mainly small pores characterized by a narrow distribution related to close packing of the sand grains, associated with some biological macropores probably with poor continuity as they did not contain roots despite their size. On average, pores were larger in the Eslot material, with a broader distribution resulting from looser packing of the sand grains but with fewer biological macropores. Although slotting reduced the number of biological pores, the looser packing appeared to be more favourable to root development than the presence of macropores in the E horizon. Finally, the comparison of the porosity in the different horizons with the porosity of the Eslot material, indicated the significance of the closeness of the sand packing on root development.

Published
2008
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9. Soil legacy data rescue via GlobalSoilMap and other international and national initiatives

Author

Alfred E. Hartemink, Zamir Libohova, C. A. Keay, Simone Marx, James Thompson, Nicolas Saby, Mohamed Badraoui, Ross Searle, Jaroslava Sobocka, Timothy S. Farewell, Rachid Moussadek, Peter Wilson, Endre Dobos, Martin Dell'Acqua, Waew Ruam, Vladimir Solbovoy, Mark van Liedekerke, Neil McKenzie, Maria da Conceição Gonçalves, Scott Smith, Tetiana Laktionova, Cristiano Ballabio, Yiyi Sulaeman, Suk-Young Hong, Pierre Roudier, Mogens Humlekrog Greve, Martin Yemefack, Martine Swerts, Stephen H. Hallett, Tomislav Hengl, Yagi Kazuyuki, Harri Lilja, Alan Hewitt, Jérôme Juilleret, Lubos Boruvka, Gustavo M. Vasquez, Nopmanee Suvannang, Miguel Angel Taboada, Urs Grob, Gan-Lin Zhang, Katrien Oorts, Aldis Karklins, Inakwu O. A. Odeh, Silatsa Tedou, Arkadiy Levin, Ruxandra Vintila, Vera Leatitia Mulder, Liu Feng, Nicolas Mansuy, Eloi Carvalho, Laura Poggio, Sid Theocharopoulos, Raphael A. Viscarra Rossel, Eliseo Guerrero, Josef Kobza, Pavel Krasilnikov, Igor Savin, Rastislav Skalsky, J. Kozák, Darío Martín Rodríguez, José Padarian, N.V. Patil, Anne C. Richer-de-Forges, Glen Lelyk, Borut Vrščaj, Stjepan Husnjak, Alexandro R. Ibelles Navarro, Panos Panagos, Seyed Kacem Alavipanah, Gerard B. M. Heuvelink, Alex B. McBratney, Mayesse Da Silva, Philippe Lagacherie, Kamran Eftekhari, Johan G. B. Leenaars, Niels H. Batjes, Luca Montanarella, Mike Grundy, László Pásztor, Allan Lilly, Garry Paterson, Lucas Moretti, Dominique Arrouays, Joop Okx, Jagdish Prasad, Budiman Minasny, Yusuke Takata, Jon Hempel, Kabindra Adhikari, Unité INFOSOL (ORLEANS INFOSOL), Institut National de la Recherche Agronomique (INRA), World Soil Information (ISRIC), Department of Agroecology, Faculty of Science and Technology, Aarhus University, European Commission - Joint Research Centre [Ispra] (JRC), Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), INEGI, National Institute of Statistics and Geography, Natural Resources Conservation Services (NRCS), United States Department of Agriculture, Department of Soil Science, Rothamsted Research, Landcare Research, Department of Agricultural Environment, National Academy of Agricultural Science, Eurasian Center for Food Security, Lomonosov Moscow State University (MSU), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Agriculture and Agri-Food [Ottawa] (AAFC), The James Hutton Institute, University of Sydney, Embrapa Solos, Biogeochemistry and Earth System Modelling, Université Libre de Bruxelles [Bruxelles] (ULB), Dokuchaev Soil Science Institute (SSI), Russian Academy of Agricultural Sciences, People's Friendship University of Russia, West Virginia University, Indonesian Center for Agricultural Land Resource Reseach and Development, Research Institute for Soil Science and Agrochemistry (ICPA), Institute of Soil Science, Land and Soil Protection Service, Flemish Government, Latvia University of Agriculture, Institute of Soil Science and Agrochemistry Research, National Scientific Center, Direccion Gereral de los Recursos Generales - Sistema de Informacion Geographica, Ministerio de Ganadería, Agricultura y Pesca [Montevideo], Land Development Department, National Bureau of Soil Survey and Land Use Planning, Indian Council of Agricultural Research, Institute for Soil Sciences and Agricultural Chemistry (ATK TAKI), Centre for Agricultural Research [Budapest] (ATK), Hungarian Academy of Sciences (MTA)-Hungarian Academy of Sciences (MTA), Alterra Green World Research (ALTERRA), Soil and Agrifood Institute, Cranfield University, Plant Production Research, Agrifood Research Finland, Luxembourg Institute of Science and Technology (LIST), National Institute of Agro-Environmental Sciences (NIAES), Canadian Forest Service, Natural Resources Canada (NRCan), Soil Science and Conservation Research Institute, Soil Genesis and Classification Department, Soil and Water Research Institute, Institut National de la Recherche Agronomique du Maroc (INRA), International Center for Tropical Agriculture, ARC Institute for Soil, Climate and Water, Laboratorio de Solos de Oieras, Instituto Nacional de Investigação Agraria e Veterinaria, NAGREF, Soil Science Institute of Athens, International Institute of Tropical Agriculture (IITA), Institut de Recherche Agricole pour le Développement (IRAD), Agricultural Institute of Slovenia, Agroscope, Faculty of Agrobiology, Czech University of Life Science, Geography Institute [Miskolc-Egyetemváros], University of Miskolci, Institute of Soils, Instituto Nacional de Tecnología Agropecuaria, Institut de Recherche pour le Développement (IRD)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), InfoSol (InfoSol), Aarhus University [Aarhus], Instituto Nacional de Estadística y Geografía (INEGI), Manaaki Whenua – Landcare Research [Lincoln], Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université libre de Bruxelles (ULB), Land Development Department (LDD), Laurentian Forestry Centre, International Institute of Tropical Agriculture (IITA-DRC), International Institute of Tropical Agriculture [Nigeria] (IITA), Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR), and Institut de Recherche Agricole pour le Développement [Yaoundé] (IRAD)

Subjects
Engineering, Legacy data, Operations research, Water en Landgebruik, legacy data, Process (engineering), [SDV]Life Sciences [q-bio], monde, donnée pédologique, 010501 environmental sciences, 01 natural sciences, Article, Soil survey, sciences du sol, Soil, Country level, Bodem, Soil, Water and Land Use, Product (category theory), Soil data rescue, 0105 earth and related environmental sciences, business.industry, Water and Land Use, Environmental resource management, 04 agricultural and veterinary sciences, 15. Life on land, PE&RC, Bodem, Water en Landgebruik, soil sciences, GlobalSoilMap, Complementarity (molecular biology), 040103 agronomy & agriculture, législation internationale, 0401 agriculture, forestry, and fisheries, General Earth and Planetary Sciences, Soil horizon, business, ISRIC - World Soil Information
Abstract

Legacy soil data have been produced over 70 years in nearly all countries of the world. Unfortunately, data, information and knowledge are still currently fragmented and at risk of getting lost if they remain in a paper format. To process this legacy data into consistent, spatially explicit and continuous global soil information, data are being rescued and compiled into databases. Thousands of soil survey reports and maps have been scanned and made available online. The soil profile data reported by these data sources have been captured and compiled into databases. The total number of soil profiles rescued in the selected countries is about 800,000. Currently, data for 117, 000 profiles are compiled and harmonized according to GlobalSoilMap specifications in a world level database (WoSIS). The results presented at the country level are likely to be an underestimate. The majority of soil data is still not rescued and this effort should be pursued. The data have been used to produce soil property maps. We discuss the pro and cons of top-down and bottom-up approaches to produce such maps and we stress their complementarity. We give examples of success stories. The first global soil property maps using rescued data were produced by a top-down approach and were released at a limited resolution of 1 km in 2014, followed by an update at a resolution of 250 m in 2017. By the end of 2020, we aim to deliver the first worldwide product that fully meets the GlobalSoilMap specifications.

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