气候变化领域集成服务门户(CCPortal): Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport

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DOI	10.1029/2020MS002234
	Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport
	Wang Y.; Xie Z.; Liu S.; Wang L.; Li R.; Chen S.; Jia B.; Qin P.; Xie J.
发表日期	2020
ISSN	19422466
卷号	12 期号:10
英文摘要	Nitrogen (N) transport from land to rivers, estuaries, and coastal marine systems has been markedly altered by anthropogenic and climatic drivers over recent decades. In this study, a riverine N transport scheme considering anthropogenic N discharge and water regulation was incorporated into the Land Surface Model of the Chinese Academy of Sciences (CAS-LSM). Seven groups of simulations using the developed model at the global scale for the period of 1981–2010 were conducted to investigate the effects of anthropogenic disturbances and climate change on riverine dissolved inorganic nitrogen (DIN) transport. It was shown that fertilization and point source pollution have enhanced the DIN fluxes in rivers across the world, especially in western Europe and eastern China. The DIN exports were significantly reduced due to retention by reservoirs and the withdrawal of surface water and groundwater, with a retention efficiency of 50–70%. Climate variability and trends increased or decreased the riverine DIN fluxes depending on the specific hydroclimatic conditions. We further analyzed the contributions of climatic and anthropogenic changes to the riverine DIN changes in four major rivers. The riverine DIN exports in the Mississippi River Basin were affected primarily by fertilization, while the changes in DIN exports of the Danube were dominated by point source pollution and water regulation. The Yangtze River in China was seriously affected by both fertilization and point source pollution, and water regulation played a significant role in reducing DIN exports. Climate variability was the primary factor explaining the interannual variability of DIN exports. © 2020. The Authors.
语种	英语
scopus关键词	Climate change; Climate models; Groundwater; Nitrogen; Reservoirs (water); Rivers; Anthropogenic disturbance; Chinese Academy of Sciences; Coastal marine systems; Dissolved inorganic nitrogens; Hydroclimatic conditions; Interannual variability; Mississippi River Basin; Surface water and groundwaters; River pollution; annual variation; anthropogenic effect; climate change; disturbance; hydrometeorology; nitrogen cycle; point source pollution; reservoir; China; Europe; Yangtze River
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156603
作者单位	State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Mountain Hazards and Earth Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
推荐引用方式 GB/T 7714	Wang Y.,Xie Z.,Liu S.,et al. Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport[J],2020,12(10).
APA	Wang Y..,Xie Z..,Liu S..,Wang L..,Li R..,...&Xie J..(2020).Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport.Journal of Advances in Modeling Earth Systems,12(10).
MLA	Wang Y.,et al."Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport".Journal of Advances in Modeling Earth Systems 12.10(2020).