Affiliation: | 1. Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China, ;2. Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, UT 84321, USA,;3. College of Life Sciences,China West Normal University, Nanchong 637009, China;Corresponding author. E-mail: feng281@126.com |