Shixiong Cao,^* Ge Sun,^** Zhiqiang Zhang,^*** Liding Chen,^**** Qi Feng,^***** Bojie Fu,^****** Steve McNulty,^******* David Shankman,^******** Jianwu Tang,^********* Yanhui Wang,^********** Xiaohua Wei<sup>***********


*</sup>Shixiong CaoAddress: Key Laboratory of Soil and Water Conservation & Combat, Beijing Forestry University, Beijing 100083, China, e-mail: shixiongcao@126.com
^**GeSun () Address: Eastern Forest Environmental Threat Assessment Center, Southern Research Station, USDA Forest Service, Raleigh, NC 27606, USA. e-mail: Ge_Sun@ncsu.edu
^***Zhiqiang ZhangAddress: Key Laboratory of Soil and Water Conservation & Combat, Beijing Forestry University, Beijing 100083, China, e-mail: zhqzhang@bjfu.edu.cn
^****Liding ChenAddress: State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. e-mail: liding@rcees.ac.cn
^*****Qi FengAddress: Cold and Arid Regions Environmental Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China. e-mail: qifeng@lzb.ac.cn
^******Bojie FuAddress: State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. e-mail: bfu@rcees.ac.cn
^*******Steve McNultyAddress: Eastern Forest Environmental Threat Assessment Center, Southern Research Station, USDA Forest Service, Raleigh, NC 27606, USA. e-mail: sgmcnult@ncsu.edu
^********David ShankmanAddress: Department of Geography, University of Alabama, Tuscaloosa, AB 35487, USA. e-mail: shankman@as.ua.edu
^*********Jianwu TangAddress: The Ecosystems Center, Marine Biological Laboratory, 7 MBL St, Woods Hole, MA 02543, USA. e-mail: jtang@mbl.edu
^**********Yanhui WangAddress: The Research Institute of Forest Ecology, Environment and Protection, The Chinese Academy of Forestry, Beijing 100091, China e-mail: wangyh@caf.ac.cn
^***********Xiaohua WeiAddress: Earth and Environmental Science Department, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada. e-mail: adam.wei@ubc.ca