Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa84bc |
Land use mediates riverine nitrogen export under the dominant influence of human activities | |
Chen, Binhui1,2; Chang, Scott X.3; Lam, Shu Kee4; Erisman, Jan Willem5,6; Gu, Baojing2,7 | |
2017-09-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada; Australia; Netherlands |
英文摘要 | Riverine nitrogen (N) export is a crucial process that links upstream and downstream ecosystems and coastal zones. However, the driving forces of riverine N export that is closely related to water N pollution are still not well understood. In this study, we used a mass balance approach to quantify the sources of N discharge and analyzed the effect of land use composition on riverine N export, taking Zhejiang Province, China as a case study. We found that the total reactive N discharge to rivers in Zhejiang increased from 0.22 to 0.26 Tg yr(-1) from 2000 to 2015. At the watershed scale, our estimate of N export agrees well with the monitored riverine N concentration in the eight major watersheds in Zhejiang. Direct discharge of domestic wastewater and effluents from wastewater treatment plants are dominant sources of riverine N export, followed by agricultural non-point sources. Although riverine N export increases with the increasing proportion of urban and agricultural land uses, we did not find any relationship between land use change and changes in riverine N export. This suggests that the dominant factor affecting riverine N export should be human activities (e.g. wastewater discharge and fertilization level), while land use only mediates riverine N export. |
英文关键词 | mass balance source apportionment land use change human activities scale effect buffer zone |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411254800003 |
WOS关键词 | NONPOINT-SOURCE POLLUTION ; WATER-QUALITY ; LANDSCAPE PATTERN ; CHINA ; BASIN ; URBANIZATION ; PHOSPHORUS ; CATCHMENTS ; CALIFORNIA ; VEGETATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/14998 |
专题 | 气候变化 |
作者单位 | 1.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310058, Zhejiang, Peoples R China; 2.Zhejiang Univ, Policy Simulat Lab, Hangzhou 310058, Zhejiang, Peoples R China; 3.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada; 4.Univ Melbourne, Fac Vet & Agr Sci, Sch Agr & Food, Melbourne, Vic 3010, Australia; 5.Louis Bolk Inst, Kosterijland 3-5, NL-3981 AJ Bunnik, Netherlands; 6.Vrije Univ Amsterdam, De Boelelaan 1091, NL-1081 HV Amsterdam, Netherlands; 7.Zhejiang Univ, Dept Land Management, Hangzhou 310058, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Binhui,Chang, Scott X.,Lam, Shu Kee,et al. Land use mediates riverine nitrogen export under the dominant influence of human activities[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(9). |
APA | Chen, Binhui,Chang, Scott X.,Lam, Shu Kee,Erisman, Jan Willem,&Gu, Baojing.(2017).Land use mediates riverine nitrogen export under the dominant influence of human activities.ENVIRONMENTAL RESEARCH LETTERS,12(9). |
MLA | Chen, Binhui,et al."Land use mediates riverine nitrogen export under the dominant influence of human activities".ENVIRONMENTAL RESEARCH LETTERS 12.9(2017). |
条目包含的文件 | 条目无相关文件。 |
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