Designing Policy for Reducing the Off-farm Effects of Soil Erosion Using Choice Experiments
Designing Policy for Reducing the Off-farm Effects of Soil Erosion Using Choice Experiments
复制标题
利用选择实验设计减少土壤侵蚀对农田外影响的政策
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
J. Calatrava
中科院分区：
文献类型：
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作者：
S. Colombo;N. Hanley;J. Calatrava
土壤侵蚀既产生现场私人成本，也产生场外社会成本，如荒漠化、农村人口减少、水道淤塞和生物多样性减少。为了设计有效的政策，土地利用规划者和决策者需要关于这些后果中变化的相对权重的信息，因为替代政策，如不同的管理限制，将对这些侵蚀后果产生不同的影响。本文介绍的研究使用选择实验方法来评估这些相对权重，使用的是西班牙南部Alto Genil和Guadajoz流域的案例研究。我们发现，减少荒漠化、保护水质、保护生物多样性、该计划覆盖的面积以及所保障的农村就业机会的数量，都是优先于替代政策设计的重要决定因素。
Soil erosion produces both on-site private costs and off-site social costs, such as desertification, rural depopulation, siltation of waterways and reductions in biodiversity. To design efficient policies, land use planners and decision makers need information on the relative weights of changes in these consequences, since policy alternatives, such as different management restrictions, will have varying impacts on these consequences of erosion. The research presented here uses the choice experiment method to evaluate these relative weights, using a case study in the Alto Genil and Guadajoz watersheds in southern Spain. We find that reductions in desertification, protection of water quality, protection of biodiversity, the area covered by the scheme, and the number of rural jobs safeguarded are all significant determinants of preferences over alternative policy designs.