ased on the 1988-1990 data of field monitoring,an analysis was made on the soil waterdynamics of Populus hopeiensis,Robinia pseudoacacia and Caragana korshinskii Plantations inthe loess plateau region in Northwestern Shanxi,by examining the following issues:the stratification of soil water distribution,the characteristics of soil water profile,the soilwater seasonal dynamics,the water cycle model and water cycle level.The new analysismethod used in this study can facilitate the further researches on soil wa...