1. Key Laboratory of Urban Agriculture, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
2. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
3. Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, China
4. Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, Shanghai, China