Nitrogen deposition influences nitrogen isotope composition in soil and needles of Pinus massoniana forests along an urban-rural gradient in the Pearl River Delta of south China |
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| Authors: | Yuanwen Kuang Fangfang Sun Dazhi Wen Zhihong Xu Longbin Huang Jiong Li |
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| Affiliation: | (1) Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Guangzhou, 510650, People’s Republic of China;(2) Pearl River Delta Research Center of Environmental Pollution and Control, Chinese Academy of Sciences, Guangzhou, 510650, People’s Republic of China;(3) South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Guangzhou, 510650, People’s Republic of China;(4) Graduate University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China;(5) Environmental Futures Centre, School of Biomolecular and Physical Sciences, Griffith University, Kessels Road 170, Nathan, QLD, 4111, Australia;(6) Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072, Australia |
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| Abstract: | Purpose Atmospheric nitrogen (N) deposition remains globally and regionally a significant N source in forest ecosystems, with intensive industrial activities. Stable N isotope ratio (δ15N) is a useful indicator widely adopted to assess environmental and ecological impacts of anthropogenic N inputs. On the basis of temporal changes in tree ring δ15N established recently, the present study investigated the influence of N deposition on δ15N in needles of Masson pine (Pinus massoniana L.) and forest soil along an urban–rural gradient in the Pearl River Delta of south China. |
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