National Department Public Benefit Research Foundation of State Forestry Administration of China [201104016]; Planned Science and Technology Project of Hunan Province, China [2013RS4035]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2013M531787]
机构署名：
本校为第一且通讯机构
院系归属：
林学院
生命科学与技术学院
摘要：
Abstract. Expanding of karst rocky desertification (RD) area in southwestern China is strangling the sustainable development of local agricultural economy. It is important to evaluate the soil fertility at RD regions for the sustainable management of karst lands. The changes in 19 different soil fertility-related variables along a gradient of karst rocky desertification were investigated in five different counties belonging to the central Hunan province in China. We used principal component analysis method to calculate the soil data matrix and obtained a standardized integrate soil fertility (...
