Economics of Soil Conservation: The Upper Mahaweli Watershed of Sir Lanka
评估了斯里兰卡上马哈维利流域土壤保持的效益与成本，发现当地土壤侵蚀控制的现场效益大于场外效益，社会效益成本分析表明实施保持措施是合意的，而私人财务分析显示农户采用这些措施在经济上可行。
This paper estimates the benefits and costs of soil conservation in the Upper Mahaweli Watershed of Sir Lanka. The costs of soil erosion control include the implementation costs of control measures, while the benefits are reductions in the costs of soil erosion. In contrast to many studies in developed countries, the on‐site benefit of soil erosion control in Sri Lanka is estimated to be greater than the off‐site benefit While a social benefit‐cost analysis demonstrates that it is socially desirable to implement conservation measures, the private financial analyses indicate that it is feasible for individual farmers to adopt the conservation measures. Despite private economic feasibility, programs addressing farmers' reluctance to adopt soil conservation measures may be preferable to public intervention in soil conservation activities when the on‐site benefits are greater than the off‐site benefits.