Affiliation: | 1.Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China, ;2. Department ofForestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USA, ;3.Department of Forest Ecology, School of Ecologyand Nature Conservation, Beijing Forestry University, Beijing 100083, China;Corresponding author. E-mail: jyfang@urban.pku.edu.cn |