Coupling analysis of agro-ecolomic system in gully area of Loess Plateau in 1949-2008: A case study in Changwu County of Shaanxi Province.
ZHANG Jian-jun1,3, ZHANG Xiao-ping1,2, WANG Ji-jun1,2, HAO Ming-de1,2, XU Jin-peng2
1State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China|2College of Resources and Environment, Northwest A &F University, Yangling 712100, Shaanxi, China|3Graduate University of Chinese Academy of Sciences, Beijing 100049, China