globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2018.06.006
Scopus记录号: 2-s2.0-85048139683
论文题名:
Exploring spatiotemporal changes of the Yangtze River (Changjiang) nitrogen and phosphorus sources, retention and export to the East China Sea and Yellow Sea
作者: Liu X.; Beusen A.H.W.; Van Beek L.P.H.; Mogollón J.M.; Ran X.; Bouwman A.F.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142
起始页码: 246
结束页码: 255
语种: 英语
英文关键词: Mechanism model ; Nutrient delivery ; Nutrient export ; Nutrient retention ; Source attribution ; The Yangtze River
Scopus关键词: Budget control ; Fertilizers ; Nitrogen ; Nutrients ; Phosphorus ; Reservoirs (water) ; Mechanism model ; Nutrient delivery ; Nutrient export ; Nutrient retention ; Source attribution ; Yangtze River ; Rivers ; nitrogen ; phosphorus ; surface water ; exploration ; human activity ; nitrogen ; numerical model ; nutrient dynamics ; phosphorus ; retention ; spatiotemporal analysis ; transport process ; Article ; China ; environmental policy ; human ; human activities ; hydrology ; nutrient ; priority journal ; river ; river basin ; sea ; China ; East China Sea ; Pacific Ocean ; Three Gorges Reservoir ; Yangtze Basin ; Yangtze River ; Yellow Sea
英文摘要: Nitrogen (N) and phosphorus (P) flows from land to sea in the Yangtze River basin were simulated for the period 1900–2010, by combining models for hydrology, nutrient input to surface water, and an in-stream retention. This study reveals that the basin-wide nutrient budget, delivery to surface water, and in-stream retention increased during this period. Since 2004, the Three Gorges Reservoir has contributed 5% and 7% of N and P basin-wide retention, respectively. With the dramatic rise in nutrient delivery, even this additional retention was insufficient to prevent an increase of riverine export from 337 Gg N yr−1 and 58 Gg P yr−1 (N:P molar ratio = 13) to 5896 Gg N yr−1 and 381 Gg P yr−1 (N:P molar ratio = 35) to the East China Sea and Yellow Sea (ECSYS). The midstream and upstream subbasins dominate the N and P exports to the ECSYS, respectively, due to various human activities along the river. Our spatially explicit nutrient source allocation can aid in the strategic targeting of nutrient reduction policies. We posit that these should focus on improving the agricultural fertilizer and manure use efficiency in the upstream and midstream and better urban wastewater management in the downstream subbasin. © 2018 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112609
Appears in Collections:气候减缓与适应

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作者单位: Department of Earth Sciences, Faculty of Geosciences, Utrecht University, P.O. Box 80021, Utrecht, TA 3508, Netherlands; PBL Netherlands Environmental Assessment Agency, P.O. Box 30314, The Hague, GH 2500, Netherlands; Department of Physical Geography, Faculty of Geosciences, Utrecht University, P.O. Box 80.115, Utrecht, 3508TC, Netherlands; Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, Leiden, RA 2300, Netherlands; Research Center for Marine Ecology, First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, China

Recommended Citation:
Liu X.,Beusen A.H.W.,Van Beek L.P.H.,et al. Exploring spatiotemporal changes of the Yangtze River (Changjiang) nitrogen and phosphorus sources, retention and export to the East China Sea and Yellow Sea[J]. Water Research,2018-01-01,142
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