1. Zhejiang Tiantong Forest Ecosystem National Observation and Research Station & Shanghai Key Lab for Urban Ecological Processes and Eco‐Restoration School of Ecological and Environmental Sciences East China Normal University Shanghai 200241 China
2. Department of Environmental Studies University of California Santa Cruz California 95064 USA
3. Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
4. Odum School of Ecology University of Georgia Athens Georgia 30602 USA