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Li Dezhi1 Qin Aili2 (1Lab of Urbanization and Ecological Restoration of Shanghai; National Field Observation and Research Station in Tiantong Forest Ecosystem of Zhejiang; College of Ecology and Environmental Science, East China Normal University, 500 Dongchuan Rd, Shanghai, China, 200241; 2Shanghai Vocational and Technical College of Agriculture and Forestry, 658 Zhongshan 2 Rd. Songjiang, Shanghai, China. 201600).
