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Impact des haies sur la ressource en eau et en sol à partir de l’exemple de la Bretagne : résultats récents et perspectives

Abstract : Since environmental issues have come to the fore and an awareness of changes in agricultural landscapes has developed, hedges are generally considered to be key regulating factors for water and soil resources. The aim of this study is to assess recent work done on the effect of hedges on those resources in Brittany, and to discuss prospects for research in this area. The role played by hedges on erosion and runoff is well known. More recent work based on in situ measurements on particular hedges shows that on the one hand hedges play a non-negligible role in respect of carbon storage in soils and furthermore that their impact on evapotranspiration, groundwater recharge and nitrate content can be quantified. In parallel, modelling tools designed for the acquisition of knowledge through research together with more operations-oriented tools intended for managers are being developed so as to generalize the results obtained locally and take on board the interactions between hedges and other factors that control water and soil quality (the physical environment, other landscape elements).
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Valérie Viaud, Catherine Grimaldi, Philippe Mérot. Impact des haies sur la ressource en eau et en sol à partir de l’exemple de la Bretagne : résultats récents et perspectives. Revue forestière française, AgroParisTech, 2009, 61 (5), pp.493-502. ⟨10.4267/2042/31528⟩. ⟨hal-01460916⟩



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