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题名: Quantitative evaluation of reactive nitrogen emissions with urbanization: a case study in Beijing megacity, China
作者: Xian, Chaofan; Ouyang, Zhiyun; Lu, Fei; Xiao Yang(肖洋); Li, Yanmin
刊名: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期: 2016-09
卷号: 23, 期号:17, 页码:17689-17701
关键词: Urbanization ; Reactive N ; Waste treatment ; Data envelopment analysis ; N offset ; Beijing
DOI: 10.1007/s11356-016-6961-1
部门归属: 城市与区域生态国家重点实验室
英文摘要: The rapid increase in anthropogenic nitrogen (N) load in urbanized environment threatens urban sustainability. In this study, we estimated the amount of reactive N (Nr) as an index of N pollution potential caused by human activities, using the megacity of Beijing as a case study. We investigated the temporal changes in Nr emissions in the environment from 2000 to 2012 using a multidisciplinary approach with quantitative evaluation. The Nr emissions presented slightly increasing during study period, and the annual emission was 0.19 Tg N, mainly resulting from fuel combustion. Nevertheless, the Nr output intensity resulting from inhabitants' livelihoods and material production had weakened over the study period. The evaluation results showed that the environmental measures to remove Nr in Beijing were efficient in most years, suggesting that progress in mitigating the growth of the Nr load in this urban environment was significant. Further measures based on N offset are suggested that could help alleviate the environmental pressure resulting from anthropogenic Nr emissions. These could provide theoretical support for the sustainable development of megacities.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35646
Appears in Collections:城市与区域生态国家重点实验室_期刊论文

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Recommended Citation:
Xian, Chaofan,Ouyang, Zhiyun,Lu, Fei,et al. Quantitative evaluation of reactive nitrogen emissions with urbanization: a case study in Beijing megacity, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(17):17689-17701.
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