On-site economic evaluation of soil conservation practices in Honduras
研究了洪都拉斯陡坡地区农民减少土壤侵蚀的成本与收益，发现适度减蚀成本低但效果有限，大幅减蚀成本高且降低收入、增加风险，需政策干预。
Factors affecting the cost to the farmer of employing soil erosion reduction strategies are examined for the steep hillsides near Tegucigalpa, Honduras. Linear programming and MOT AD are used to examine these factors. Results indicate that some modest reductions in erosion can be achieved at little cost to the farmer by reorganizing production, switching .rotations, and using contour plowing. These modest reductions still lead to extremely high rates of erosion. Sharper reductions may be achieved at progressively higher costs as erosion control structures are constructed and acreage is left fallow. There is a high cost to the farmer of reducing erosion to 'sustainable' levels. A consistent tradeoff emerges between levels of soil conservation, income, and risk; erosion reduction efforts lead to lower incomes and higher risk. The analysis of likely benefits to farmers for erosion reduction shows that even under assumptions of very high yield losses from soil erosion, optimal farm plans still lead to high rates of soil loss, implying a need for policies that internalize externalities if off-farm damages are to be minimized.