Comparison of vegetation community between natural recovery and artificial restoration in semiarid loess area
LIU Zhongqi, ZHU Qingke, QIN Wei, LI Ping, WANG Jing, KUANG Gaoming
Ecology and Environment . 2010, (4): 857 -863 .  DOI: 10.16258/j.cnki.1674-5906(2010)04-0857-07