自然和人为因素对毛乌素沙地沙漠化的耦合作用

Coupling Effect of Natural and Artificial Factors on Desertification in Mu Us Sandland

通过主成分分析方法研究了不同因子对沙漠化的贡献。结果表明,自然因素是该沙地沙漠化的主要驱动力,以气温变化的驱动力最大;人口密度也是沙漠化的主要驱动力,以耕翻为主人为活动对沙漠化驱动作用较大。

Using principal component analysis,the contribution of different factors to the desertification was studied.The results showed that natural factor was the primary driving force,especially the change of air temperature.Population density was also the primary driving force,and tillage was leading factor in human activity.