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Sustainability 2018, 10(12), 4673; https://doi.org/10.3390/su10124673

Comprehensive Analysis of Nitrogen Deposition in Urban Ecosystem: A Case Study of Xiamen City, China

1
Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
Sino-Japan Friendship Centre for Environmental Protection, Beijing 100029, China
4
Guizhou Academy of Testing and Analysis, 338 Baisha Road, Guiyang, Guizhou 550014, China
5
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
6
Institute of Industrial Economics, Jiangsu University, Zhenjiang 212013, China
7
Xiamen Key Lab of Urban Metabolism, Xiamen, Fujian 361021, China
*
Authors to whom correspondence should be addressed.
Received: 27 August 2018 / Revised: 4 December 2018 / Accepted: 4 December 2018 / Published: 7 December 2018
PDF [1103 KB, uploaded 7 December 2018]

Abstract

Atmospheric nitrogen deposition can supply nitrogen for ecosystems while posing a serious threat to ecological security. An assessment of the ecological risks caused by atmospheric nitrogen deposition is critical for urban sustainable development. Based on “Ecological Risk Analysis” and the “Driver-Pressure-State-Response (DPSR) framework,” this paper established a comprehensive ecological risk assessment model and assessed the ecological risk of nitrogen deposition in Xiamen City, China. The results showed that the risk from nitrogen deposition to the forest ecosystem is high due to the impact of nitrogen deposition on the residual rate of litter and survival rate of seedlings. The risks to freshwater and marine ecosystems were determined to be high and moderate, respectively, due to the promotion of eutrophication by nitrogen. The risk to farm ecosystems was low due to the impact on weeds. The proportion of high-risk areas in Xiamen City was 37.1%. Among the districts of Xiamen City, Tong’an and Xiang’an had the highest proportion of high-risk areas (48%) and low-risk areas (31.8%), respectively.
Keywords: nitrogen deposition; ecological risk; forest ecosystem; farm ecosystem; aquatic ecosystem nitrogen deposition; ecological risk; forest ecosystem; farm ecosystem; aquatic ecosystem
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Shi, L.; Zhang, M.; Zhang, Y.; Yang, B.; Sun, H.; Xu, T. Comprehensive Analysis of Nitrogen Deposition in Urban Ecosystem: A Case Study of Xiamen City, China. Sustainability 2018, 10, 4673.

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