Soil erosion, dissolved organic carbon and nutrient losses under different land use systems in a small catchment in northern Vietnam
| Autor: | Hai Tran Sy, Thi Phuong Quynh Le, Pascal Jouquet, Dinh Rinh Pham, Quoc Anh Ngo, Séraphine Grellier, Thi Nguyet Minh Luu, Lc Gillard, Emma Rochelle Newall, Trinh Anh Duc, Christian Valentin, Jean-Louis Janeau, Duc Toan Tran, Didier Orange |
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| Přispěvatelé: | 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), WEO Department, University of sciences and technologies of hanoi (USTH), Université Pierre et Marie Curie - Paris 6 (UPMC), Vietnam Academy of Science and Technology (VAST), A18-Institute of Chemistry, Vietnamese Academy of Science and Technology, Ecologie des systèmes marins côtiers (Ecosym), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS), Soils and Fertilizers Research Institute (SFRI), Vietnam Academy of Agricultural Sciences (VAAS), Veolia Environnement Recherche et Innovation, Veolia, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris), Institut National de la Recherche Agronomique (INRA)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Biomécanique et Mécanique des Chocs (LBMC UMR T9406), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Institut d'écologie et des sciences de l'environnement de Paris (iEES), Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), UR 103 Camélia, Institut de Recherche pour le Développement (IRD), French Institut de Recherche pour le Developpement (IRD), UMR BIOEMCO, project PAMPA, PHC Hoa Sen Lotus [23970QM], LOTUS [44/2012/HD-NDT], MOST, Vietnam, Institut d'écologie et des sciences de l'environnement de Paris (IEES (UMR_7618 / UMR_D_242 / UMR_A_1392 / UM_113) ), 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), 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), 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), University of Science and Technology of Hanoi (USTH) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
FORET
010504 meteorology & atmospheric sciences SOL CULTIVE 01 natural sciences Agricultural land Dissolved organic carbon PERTE EN TERRE Tropical catchments DEGRADATION DU SOL MATIERE ORGANIQUE DISSOUTE ComputingMilieux_MISCELLANEOUS Water Science and Technology 2. Zero hunger Agroforestry Aquatic ecosystem 04 agricultural and veterinary sciences No-till Plant litter CARBONE PRATIQUE CULTURALE BASSIN VERSANT Erosion [SDE]Environmental Sciences PENTE SIMULATION DE PLUIE COUVERT VEGETAL Soil Science TRAVAIL DU SOL No-till farming ALTITUDE AZOTE ETUDE COMPARATIVE Ecosystem Soil carbon loss 14. Life underwater 0105 earth and related environmental sciences Earth-Surface Processes Rain simulations PHOSPHORE Soil carbon 15. Life on land NUTRIMENT JACHERE Agronomy MULCH Acacia mangium [SHS.ENVIR]Humanities and Social Sciences/Environmental studies Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science EROSION HYDRIQUE Agronomy and Crop Science ZONE DE MONTAGNE |
| Zdroj: | Agricultural Water Management Agricultural Water Management, Elsevier Masson, 2014, 146, http://dx.doi.org./10.1016/j.agwat.2014.09.006 Agricultural Water Management, Elsevier Masson, 2014, 146, pp.314-323. ⟨10.1016/j.agwat.2014.09.006⟩ Agricultural Water Management, 2014, 146, pp.314-323. ⟨10.1016/j.agwat.2014.09.006⟩ Agricultural Water Management, 2014, 146, http://dx.doi.org./10.1016/j.agwat.2014.09.006 |
| ISSN: | 0378-3774 |
| DOI: | 10.1016/j.agwat.2014.09.006 |
| Popis: | International audience; The export of dissolved organic carbon (DOC) from agricultural soils can represent an important pathway of soil organic carbon loss. However, despite its importance in terrestrial and downstream aquatic ecosystems, most work has focused on temperate agrosystems with tropical and sub-tropical ecosystems being ignored. Here we present the results of a series of rain simulation experiments aimed at examining DOC export from sloping lands in North Vietnam. Three regularly used agricultural practices were tested and compared with Bare soils. We also compared the impact of leaf litter in two planted forest sites. We found high rates of DOC export (0.03-0.25 g C m(-2)) during a 40 min rain episode with the lowest rates observed in the Bare soils and the highest in the planted Forest without leaf litter. This is equivalent to a loss of between 0.001 and 0.008% of the total soil organic carbon in the upper 10 cm during a single, intense rain event. This work highlights the impact of different agricultural practices (Bare soil, hoeing, mulching and fallow) and land use (planted Forest with or without leaf litter) on the export of DOC from upland, tropical soils and further underlines the importance of studying DOC fluxes from agricultural land as it represents an important and highly mobile component of ecosystem carbon fluxes. |
| Databáze: | OpenAIRE |
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