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中国沙漠 ›› 1992, Vol. 12 ›› Issue (1): 40-48.

• 论文 • 上一篇    下一篇

沙漠化与土壤物质含量变化

申建友, 董光荣, 李长治, 陈惠忠   

  1. 中国科学院兰州沙漠研究所
  • 出版日期:1992-03-20 发布日期:1992-03-20

Pelations Between Desertification and Soil Composition

Shen Jianyou, Dong Guangrong, Li Changzhi, Chen Huizhong   

  1. Institute of Desert Research, Acadermia sinica, Lanzhou
  • Online:1992-03-20 Published:1992-03-20

摘要: 在沙漠化的环境演变过程中,土壤物质含量显著改变。本文通过风蚀导致土壤物质损失的数量分析,研究沙漠化过程中土壤物质含量的变化规律,初步确定了沙漠化各发展阶段与土壤中所含物质之间的数量关系。

关键词: 沙漠化, 土壤风蚀, 土壤物质含量

Abstract: Soil composition varies significantly in the processes of environmental changes caused by the desertification.Analytical results show that soil nutrients、silt and physical clay lose at an amazing rate with the development of the desertification,for instance,the annual nutrient loss alone amounts to four million tons,or 20 million tons of fertilizers over the 10,000km2 of Gonghuo Basin*There seems to be a well correlation between positive,negative processes of desertification and soil composition variations.An attempt has been made to establish the relations between desertifide lands and soil compositions.