On the relationship between environmental aridization of the Loess Plateau and soil water in loess  

作　　者：杨文治 邵明安 彭新德 夏卫生 

出　　处：《Science China Earth Sciences》1999年第3期240-249,共10页中国科学（地球科学英文版）

基　　金：Project supported by the key project (KZ951-B1-211) of ecological and environmental study of the Chinese Academy of Sciences.

摘　　要：The similarity between loess palaeo- environment and geographic distribution of modem bioclimatic zones is taken as a starting point; the relationship between the environmental aridization and soil water in loess ia discussed from the point view of the soil water energy status and their soil water physical characteristics of modem lcessial soils on the Loess Plateau. The soil water content becomes less and less from southeast to northwest, which not only provides favorable conditions for dust production by wind of loess origin, but also reveals that there is obviously a directional change in the environmental drought intensity of the Loess Plateau.The similarity between loess palaeo-environment and geographic distribution of modern bioclimatic zones is taken as a starting point; the relationship between the environmental aridization and soil water in loess is discussed from the point view of the soil water energy status and their soil water physical characteristics of modern loessial soils on the Loess Plateau. The soil water content becomes less and less from southeast to northwest, which not only provides favorable conditions for dust production by wind of loess origin, but also reveals that there is obviously a directional change in the environmental drought intensity of the Loess Plateau.

关 键 词：the LOESS PLATEAU water in the LOESS soil environment aridizaiton. 

分 类 号：S15[农业科学—土壤学]