1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
2. Centre for Ecology & Hydrology, Wallingford, Oxfordshire OX10 8BB, UK.
3. James Hutton Institute, Aberdeen AB15 8QH, Scotland, UK.
4. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
5. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100103, China.
6. State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.