西部地区农田和草地生态系统现状与建设途径

何文清,严昌荣,刘勤,刘爽

Protection and Construction of Farmland and Grassland Ecosystems in the Western Area of China

HE Wen-qing|YAN Chang-rong|LIU Qin|LIU Shuang

. 2008, (S1): 52 -55 .