Nitrogen deposition and its ecological impact in China: An overview

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• 作者：Xuejun  ; Liu^a ;   ; ^e ;   ; ^{xuejun.13500@gmail.com} ; Lei  ; Duan^b ; Jiangming  ; Mo^c ; Enzai  ; Du^d ; Jianlin  ; Shen^a ; Xiankai  ; Lu^c ; Ying  ; Zhang^a ; Xiaobing  ; Zhou^e ; Chune  ; He^f ; Fusuo  ; Zhang^a
• 关键词：Atmospheric pollution ; N emission and deposition ; Critical loads ; Ecological impact
• 刊名：Environmental Pollution
• 出版年：2011
• 出版时间：October 2011
• 年：2011
• 卷：159
• 期：10
• 页码：2251-2264
• 全文大小：680 K

文摘

Nitrogen (N) deposition is an important component in the global N cycle that has induced large impacts on the health and services of terrestrial and aquatic ecosystems worldwide. Anthropogenic reactive N (N_r) emissions to the atmosphere have increased dramatically in China due to rapid agricultural, industrial and urban development. Therefore increasing N deposition in China and its ecological impacts are of great concern since the 1980s. This paper synthesizes the data from various published papers to assess the status of the anthropogenic N_r emissions and N deposition as well as their impacts on different ecosystems, including empirical critical loads for different ecosystems. Research challenges and policy implications on atmospheric N pollution and deposition are also discussed. China urgently needs to establish national networks for N deposition monitoring and cross-site N addition experiments in grasslands, forests and aquatic ecosystems. Critical loads and modeling tools will be further used in N_r regulation.