Academic Journal
Simulating the long term impact of nitrate mitigation scenarios in apilot study basin
| العنوان: | Simulating the long term impact of nitrate mitigation scenarios in apilot study basin |
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| المؤلفون: | Ferrant, Sylvain, Durand, Patrick, Justes, Eric, Probst, Jean-Luc, Sánchez-Pérez, J.M. |
| المساهمون: | Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, AGroécologie, Innovations, teRritoires (AGIR), Institut National de la Recherche Agronomique (INRA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT), CPER and FEDER (IMAQUE Project), within INSOLEVIE Inter-regional project funded by the Aquitaine and Midi Pyrénées regions and within the framework of the European LIFE project, CONCERT’EAU, AKKA Technology fellowship within the CIFRE convention |
| المصدر: | ISSN: 0378-3774 ; Agricultural Water Management ; https://hal.science/hal-00821869 ; Agricultural Water Management, 2013, vol. 124, pp. 85-96. ⟨10.1016/j.agwat.2013.03.023⟩ ; http://www.journals.elsevier.com/agricultural-water-management. |
| بيانات النشر: | HAL CCSD Elsevier Masson |
| سنة النشر: | 2013 |
| المجموعة: | Université Toulouse III - Paul Sabatier: HAL-UPS |
| مصطلحات موضوعية: | Agricultural scenario, Nitrate transfer, Small catchment modeling, Best management practices, Catch crops, Agro-hydrology, TNT2 model, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology, [SDE.MCG]Environmental Sciences/Global Changes |
| الوصف: | International audience ; The agro-hydrological model TNT2 was used to explore for a period of 14 years (1987-2001) the likelyconsequences of mitigation scenarios on nitrate contamination of the stream water in a small agriculturalcatchment. The Best Management Practices (BMPs) historically designed and implemented in 1992 andtwo devised agricultural scenarios (catch crop (CC) implementation and a global reduction of N fertilizer)are evaluated in term of nitrate contamination in the environment. Two of the BMPs consist in imple-menting natural strips of Poplar and rye-grass strips (5 meters large) along stream and ditches and thethird is a delay in the burial of wheat straws (from August to October). Simulations indicated that naturalstrips implementation would lead to a slight decrease of Nitrate Fluxes (NF) in river by respectively 3.3%and 6.6% for rye-grass and poplar strips: a benefit associated to the non fertilization of strips area. Denitri-fication has not been particularly disrupted in such areas. The delay in the burial of wheat straw in autumndecreases annual mineralization rate and annual plant uptake (by respectively 9 and 13 kg N ha−1y−1)but increases denitrification fluxes by 6 kg N ha−1y−1. This would lead to a slight decrease by 6% of NFin stream (equivalent to 3.3 mg NO3−l−1) and an average decrease of the following sunflower yield by27%. The global reduction of fertilization by 10% would decreased NF in stream by 13.8% (equivalent to8 mg NO3−l−1), with a global decrease by 8 kg N ha−1y−1of plant uptake. The cumulative effect of BMPsand CC would have together lead to a decrease of nitrate concentration from 57.5 to 46.6 mg NO3−l−1reaching the UE environmental quality objectives (below 50 mg NO3−l−1). Spring crops yield followingCC would have been penalized and the decrease of NF is balanced by an increase of denitrification fluxesin the environment contributing to release of N2O, a greenhouse gas, into the atmosphere. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| ردمك: | 978-0-00-320145-1 0-00-320145-7 |
| Relation: | PRODINRA: 208363; WOS: 000320145700010 |
| DOI: | 10.1016/j.agwat.2013.03.023 |
| الاتاحة: | https://hal.science/hal-00821869 https://hal.science/hal-00821869v1/document https://hal.science/hal-00821869v1/file/Ferrant_9020.pdf https://doi.org/10.1016/j.agwat.2013.03.023 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.67EDBCBE |
| قاعدة البيانات: | BASE |
| ردمك: | 9780003201451 0003201457 |
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| DOI: | 10.1016/j.agwat.2013.03.023 |