氮沉降对荷木林中活性有机碳及土壤酶活性的影响.pdf

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氮沉降对荷木林中活性有机碳及土壤酶活性的影响.pdf

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1 Physical protection by soil aggregates stabilise soil organic carbon under 2 simulated N deposition in a subtropical forest of China a b1 b c c d 3 Xiao-lan Zhong , Jiang-tao Li , Xiao-jia Li , Yong-chang Ye , Song-song Liu , Paul D. Hallett , d 4 Muhammad Naveed 5 a. College of Natural Resources and Environments, Guangdong Province Key Laboratory for Land use and 6 Consolidation, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, PR 7 China 8 b. School of Geographical Sciences, Guangzhou University, 230 Waihuan West Road, Guangzhou, 510006, 9 Guangdong, PR China 10 c. Dongguan Institute of Forestry Research, 285 Xueyuan Road, Dongguan, 523106, Guangdong, PR China 11 d. Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St Machar 12 Drive, Aberdeen, AB24 3UU, UK 13 14 15 Corresponding author: Jiang-tao Li 16 Tel: +86 17 Email: ljtgzhu@163.com (J. t. Li) 18 Postal addresses: School of Geographical Sciences, Guangzhou University, 230 Waihuan 19 West Road, Guangzhou, Guangdong, PR China, 510006 20 21 1 Corresponding author. Tel: +86 E-mail address: ljtgzhu@163.com (J.-t. Li) 1 22 Abstract 23 Atmospheric N deposition has increased dramatically in China due to rapid industrial, agricultural 24 and urban development, greatly affecting carbon cycling. Whilst C emissions may increase by 25 elevated N deposition, limita