我国耕地利用变化及其对粮食生产的影响
Arable-Land Use Change and Its Effects on the Grain Production in China
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摘要: 通过GIS模型(CLUE_CH),探讨了我国耕地变化及其空间分布特征。利用耕地变化的幅度,划分了4个不同的类型区,并进一步从空间的角度分析了耕地利用变化对我国粮食生产的播种面积、生产条件与生产水平等方面的影响。Abstract: Through GIS model (CLUE_CH), this article investigated the arable-land use change and its spatial characteristics. According to the scale of arable-land change, four regions were classified. The effects of arable-land change on sowing area, production conditions and total production of cereal crops were analyzed in a spatial aspect.