Characteristics of the soil environment of Dongting Lake wetlands and its response to the converting farmland to lake project Status and dynamics of China‘s lake water regulation Solid Collocation of Water Collected Shrub Grass and Water Regulation in Semi Arid Region of Loess Plateau Study on root development characteristics of spring maize and its relationships with canopy growth Techniques for Afforestation in the Extremely DegenerativeMountainous Land of Dry and Hot Areain Nanjian,Yunnan Province Analysis on the responses of flood storage capacity of Dongting Lake to the changes of landscape patterns in Dongting Lake area