1 College of Life Sciences, Shanxi Normal University, Linfen 041000, China(1); State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China(1); Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ 86011, USA.
2 State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China(1). Electronic address: weiwei@rcees.ac.cn.
3 State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China(1).
4 Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ 86011, USA.
5 Key Laboratory for Agro-Environment, Ministry of Agriculture, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 10081, China.