Distribution of Plant Functional Groups in the Natural Grasslands of Xizang, China Relationships between environmental variables and seasonal succession inphytoplankton functional groups in the Hulan River Wetland Effect of environmental variables on species composition and richness of alpine vegetation in Taibai Mountain Nocturnal sap flow of four urban greening tree species in Dalian, Liaoning Province, China Darkling beetle community structure and its relations with environmental factors in Sidunzi of Yanchi, Ningxia, China. Species diversity of carabid beetles in desert-steppe in Yanchi of Ningxia, China