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英文文献：Impact Of Shelterbelts On Groundnut Production In Therilands: A Decomposition Analysis-防护林对农田花生生产的影响:分解分析
英文文献作者：Narayanan, V. Venkat,Maynard, Leigh J.
英文文献摘要：
In areas characterized by wind erosion and shifting sand dunes, shelterbelts can increase crop yields. Groundnut yields in southern India increased with the introduction and maturation of shelterbelts. Decomposition analysis attributed most of the yield increases to the shelterbelts themselves, with a small portion attributed to input use changes. While shelterbelt cost data are scarce, the estimated value of inputs saved due to shelterbelts suggested a net benefit stream that is initially negative but increasing into the indefinite future. Public investments in shelterbelts may be the most effective means of preventing land degradation.
在以风蚀和移动沙丘为特征的地区，防护林可以提高作物产量。随着防护林的引进和成熟，印度南部的花生产量增加了。分解分析认为，大部分产量的增加是由于防护林本身，只有一小部分是由于投入使用的变化。虽然防护林成本数据稀缺，但由于防护林节约的投入的估计价值表明，一开始的净收益流是负的，但在不确定的未来会不断增加。对防护林的公共投资可能是防止土地退化的最有效手段。
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