英文文献:The Effects of Crop Generic Resources and Biodiversity on Agricultural Production: An Empirical Study on Rice Farming-作物类属资源和生物多样性对农业生产的影响:水稻种植的实证研究
英文文献作者:Kim, Kwansoo,An, Donghwan,Chae, Kwangseok
英文文献摘要:
This paper has investigated the effects of crop biodiversity on the mean and the variance of yield in rice production. It used panel data from 22 research stations of Rural Development Administration in Korea during 1997-2004. We found evidence that yield risk is positively related with crop biodiversity measured as a Herfindahl concentration index of varietal diversity. In other words, crop biodiversity is found to be a risk-decreasing input.
本文研究了作物生物多样性对水稻生产中产量均值和方差的影响。它使用了1997-2004年韩国农村发展管理局22个研究站的面板数据。我们发现,作为品种多样性的赫芬达尔浓度指数,产量风险与作物生物多样性呈正相关。换句话说,作物生物多样性被发现是一个降低风险的投入。


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