Reducing runoff by managing crop location at the catchment level, considering agronomic constraints at farm level
| Autor: | François Papy, Philippe Martin, Veronique Souchere, Alexandre Joannon |
|---|---|
| Přispěvatelé: | SAD Paysage (SAD Paysage), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, 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), Sciences pour l'Action et le Développement : Activités, Produits, Territoires (SADAPT), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, AgroParisTech, AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA) |
| Rok vydání: | 2006 |
| Předmět: |
010504 meteorology & atmospheric sciences
[SDV]Life Sciences [q-bio] Drainage basin Soil Science Development 01 natural sciences Crop CATCHMENT Agricultural land Environmental Chemistry RUNOFF 0105 earth and related environmental sciences General Environmental Science 2. Zero hunger geography geography.geographical_feature_category Agroforestry CROP LOCATION CROP ROTATION FARMER'S LEEWAY 04 agricultural and veterinary sciences Decision rule 15. Life on land Crop rotation FARMING SYSTEM Current (stream) 13. Climate action 040103 agronomy & agriculture Erosion 0401 agriculture forestry and fisheries Environmental science europe Water resource management Surface runoff france |
| Zdroj: | Land Degradation and Development Land Degradation and Development, Wiley, 2006, 17 (5), pp.467-478. ⟨10.1002/ldr.714⟩ |
| ISSN: | 1099-145X 1085-3278 |
| DOI: | 10.1002/ldr.714 |
| Popis: | Runoff and erosion cause frequent damage through muddy floods in the loess belt of Northern Europe. One possibility for reducing damage is to lower runoff on agricultural land by spatially alternating different crops at the catchment level. But crop location results from decisions taken at the farm level. This study aimed to assess the existing leeway to modify crop location in the farms of a catchment, in order to reduce runoff at the catchment's outlet. The case study was the Bourville catchment (1086 ha), cultivated by 28 farmers and located in Pays de Caux, France. First, crop location rules in the 14 main farms of the catchment were analysed on the basis of surveys carried out with farmers, distinguishing spatial constraints from temporal ones. These rules made it possible to simulate crop location on each farm territory for the 2001-2002 crop year. Each field of the catchment was classified depending on whether one or several crops could be sown, taking into account both field history and farmer decision rules. Then two extreme scenarios of crop location in the Bourville catchment were built. Runoff simulation at the outlet with the STREAM model showed that runoff could be reduced while sticking to current farmer decision rules in terms of crop location. Depending on rainfall event characteristics, runoff reduction varied between 13·5 per cent and 4·5 per cent. |
| Databáze: | OpenAIRE |
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