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Effects of anthropogenic activities on long-term changes of nitrogen budget in a plain river network region: A case study in the Taihu Basin
Lian Huishu1; Lei Qiuliang1; Zhang Xinyu2,3; Haw, Yen4; Wang Hongyuan1; Zhai Limei1; Liu Hongbin1; Jr-Chuan, Huang5; Ren Tianzhi6; Zhou Jiaogen7; Qiu Weiwen8
2018-12-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume645Pages:1212-1220
Corresponding AuthorLei Qiuliang(leiqiuliang@caas.cn) ; Liu Hongbin(liuhongbin@caas.cn)
AbstractOver recent decades, Taihu Lake, the third largest freshwater lake in China, has borne the brunt of intensive human activities. Non-point source pollutants and discharges of domestic wastewater are now the main cause of eutrophication. To control non-point source pollution, it is useful to have a good understanding of the spatial and temporal distribution of N (nitrogen). In this study, we applied Export Coefficient Model (ECM) and the Net Anthropogenic Nitrogen Inputs (NANI) method to estimate the N loads in the Taihu Basin at county scale since 1980. We found that N inputs and exports had increased from 6432 and 3170 kg N km(-2) yr(-1) in 1980 to 9722 and 4582 kg N km(-2) yr(-1) in 2010, respectively. The 151% increase of N inputs, but 144% increase of riverine N outputs suggested the more N was retained within the Taihu Basin. Both the population density and the urban areas were strongly correlated with N inputs and exports. Approximately 38% of the N inputs were exported in 2010, but only 19% were exported in 1980. This ratio illustrated that human activities, especially urbanization and population growth, have upset N budget in the Taihu Basin. This study supported by empirical models provides a case to demonstrate the N cascade in the Taihu Basin and can also be used to support decision making and to facilitate the development of measures to control N in the future. (C) 2018 Elsevier B.V. All rights reserved.
KeywordNitrogen budget Non-point source pollution Anthropogenic activities Eutrophication Export coefficient model Taihu Basin
DOI10.1016/j.scitotenv.2018.06.354
WOS KeywordEXPORT COEFFICIENT MODEL ; LAND-USE ; SURFACE WATERS ; EASTERN CHINA ; INPUTS ; NITRATE ; FLUXES ; PHOSPHORUS ; IMPACTS ; LAKE
Indexed BySCI
Language英语
Funding ProjectSpecial Fund for Agroscientific Research in the Public Interest[201303089] ; National Natural Science Foundation of China[31572208] ; Newton Fund[BB/N013484/1]
Funding OrganizationSpecial Fund for Agroscientific Research in the Public Interest ; National Natural Science Foundation of China ; Newton Fund
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000445164200121
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52830
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLei Qiuliang; Liu Hongbin
Affiliation1.CAAS, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Nonpoint Source Pollut Control, Beijing 10081, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
4.Texas A&M Univ, Texas A&M Agrilife Res, Blackland Res & Extens Ctr, Temple, TX 76502 USA
5.Natl Taiwan Univ, Dept Geog, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan
6.CAAS, Inst Agr Resources & Reg Planning, Beijing 10081, Peoples R China
7.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China
8.New Zealand Inst Plant & Food Res Ltd, Private Bag 4704, Christchurch 8140, New Zealand
Recommended Citation
GB/T 7714
Lian Huishu,Lei Qiuliang,Zhang Xinyu,et al. Effects of anthropogenic activities on long-term changes of nitrogen budget in a plain river network region: A case study in the Taihu Basin[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,645:1212-1220.
APA Lian Huishu.,Lei Qiuliang.,Zhang Xinyu.,Haw, Yen.,Wang Hongyuan.,...&Qiu Weiwen.(2018).Effects of anthropogenic activities on long-term changes of nitrogen budget in a plain river network region: A case study in the Taihu Basin.SCIENCE OF THE TOTAL ENVIRONMENT,645,1212-1220.
MLA Lian Huishu,et al."Effects of anthropogenic activities on long-term changes of nitrogen budget in a plain river network region: A case study in the Taihu Basin".SCIENCE OF THE TOTAL ENVIRONMENT 645(2018):1212-1220.
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