Modelling the impact of climate warming at the landscape scale: will bench terraces become economically and ecologically viable structures under changed climates?
Identifieur interne : 000C09 ( Istex/Checkpoint ); précédent : 000C08; suivant : 000C10Modelling the impact of climate warming at the landscape scale: will bench terraces become economically and ecologically viable structures under changed climates?
Auteurs : Richard Wadsworth [Royaume-Uni] ; Ruth Swetnam [Royaume-Uni]Source :
- Agriculture, Ecosystems and Environment [ 0167-8809 ] ; 1998.
Abstract
Past agricultural intensification has led to a decline in wildlife through the fragmentation and loss of habitats. Measures to halt this decline in biological diversity have primarily relied on paying landowners to `farm' wildlife (such as the Environmentally Sensitive Areas Scheme) or not to farm at all (such as the European Union set-aside scheme). Both methods involve considerable costs. With possible increased temperatures linked with climate change, the need for soil and water conservation (SWC) techniques could force changes in prevailing agricultural methods. In more extreme continental climates (such as the American Mid-West) arable farmers often employ bench terraces to reduce soil loss and irrigation costs. This creates strips of permanent grassland in otherwise ecologically barren landscapes. Through a parsimonious model of crop yield, an exploration of the viability of such techniques of SWC under a changed climate in East Anglia, United Kingdom is explored. If bench terraces were shown to be economic, then their adoption could have significant ecological benefits, at little or no cost to society. This paper examines whether climate change could prompt the construction of these new landscape features for the benefit of both agriculture and ecological diversity.
Url:
DOI: 10.1016/S0167-8809(97)00133-3
Affiliations:
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