作者单位: | Qi LU,Xuequan WANG,Bo WU(National Research and Development Center for Combating Desertification,Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China);Hongxiao YANG(College of Life Sciences,Beijing Normal University,Beijing 100875,China;College of Resources and Environment,Qingdao Agricultural University,Qingdao 266109,China) |