1. Chinese Academy of Sciences, Xinjiang Institute of Ecology and Geography, 818 Road Beijing, Urumqi 830011, ChinabUniversity of Chinese Academy of Sciences, Beijing, 19 Road Yuquan, Beijing 100049, China
2. Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, 4888 Shengbei Street, Changchun 130012, China
3. Jaramogi Oginga Odinga University of Science and Technology, Bondo, 210-40601, Kenya
4. Shizuoka University, Graduate School of Agriculture, 836 Ohya, Shizuoka 422-8529, Japan