黄土高原土壤元素含量地域分异规律

利用趋势面分析法 ,对黄土高原土壤中 3 9个元素含量的区域分布进行了研究。结果表明 ,黄土高原土壤中的大多数元素含量和黄土母质接近 ,且具有粒度相关型的地域分异规律。土壤发生过程和生物气候环境是影响土壤元素含量地域分异的主要因素。元素的地域分布为黄土高原的风成学说提供了土壤地球化学方面的佐证

The distribution laws of 39 soil elements in the loess plateau were studied by trend surface analysis method . The results showed that great majority of elements contents on the loess plateau approach to element in loess parent materials. The process of soil genesis and bioclimatic environment of soil are the main factors affecting the contents of soil elements. and regional differentiations. This research provides the wind born doctrine of loess plateau with soil geochemical proofs.