摘要
利用中子活化分析等现代分析技术,对黄土高原土壤中39个常量、微量元素在土壤中的含量及其分布规律进行了研究。结果表明,黄土高原土壤基本上保留了黄土母质的主要元素地球化学特征。黄土在风力搬运过程中的分选沉降规律和土壤发生的生物气候环境是影响土壤元素含量地域分异的主要因素。这一研究也为中国黄土的风成学说提供了土壤地球化学方面的佐证。
The contents and distribution laws of 39 major and trace elements in soil on the loess plateau were studied by using modern technique of neutron activation analysis. The results showed that soils on the loess plateau basically keep the geochemical properties of elements in loess parent materials. The laws of fractional fallout in the process of loess transportion by wind force and bioclimatic environment of soil genesis are the main factors affecting the contents of soil elements and regional differentiations. This research provides the wind-born doctrine of loess in China with soil geochemical proofs.
出处
《水土保持学报》
CSCD
北大核心
1992年第1期77-83,共7页
Journal of Soil and Water Conservation
关键词
土壤
元素
地球化学
地域分异
soil element
geochemistry
regional variance
