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Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport

文献类型：期刊论文

作者Wang Yan1,3; Xie Zhenghui1,3; Liu Shuang2; Wang Longhuan1,3; Li Ruichao1,3; Chen Si1,3; Jia Binghao1; Qin Peihua1; Xie Jinbo1
刊名JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
出版日期2020
卷号12期号:10页码:105567
DOI10.1016/j.enggeo.2020.105567
产权排序3
通讯作者Xie, Zhenghui(zxie@lasg.iap.ac.cn)
文献子类Article
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. Plain Language Summary Nitrogen (N) transport from land to rivers, estuaries, and coastal marine systems has been markedly altered by anthropogenic and climatic drivers over recent decades. The enhanced N exports from land to oceans endanger the ecological environment and human health, which represents a global-scale challenge. In this study, we incorporated a riverine N transport scheme considering anthropogenic dissolved inorganic nitrogen (DIN) discharge and water regulation into the Land Surface Model of the Chinese Academy of Sciences (CAS-LSM) to illustrate how anthropogenic disturbances and climate change affect riverine DIN transport. It was shown that fertilization and point source pollution enhanced the DIN fluxes in rivers across the world, while water regulation played a role in reducing DIN exports. Climate variability and trends increased or decreased the riverine DIN fluxes depending on the specific hydroclimatic conditions, and climate variability was the primary factor explaining the interannual variability of DIN exports.
电子版国际标准刊号1872-6917
WOS关键词GLOBAL NITROGEN ; SURFACE-WATER ; GROUNDWATER ; SIMULATION ; RETENTION ; FLUXES ; LANDSCAPE ; BALANCE ; CYCLES ; EXPORT
资助项目National Natural Science Foundation of China[41830967] ; National Key R&D Program of China[2018YFC1506602] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDY-SSW-DQC012]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000525399100015
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Key R&D Program of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
源URL[http://ir.imde.ac.cn/handle/131551/50766]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Xie Zhenghui
作者单位1.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China;
2.Key Laboratory of Mountain Hazards and Earth Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
3.College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China;
推荐引用方式
GB/T 7714		 Wang Yan,Xie Zhenghui,Liu Shuang,et al. Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport[J]. JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS,2020,12(10):105567.
APA Wang Yan.,Xie Zhenghui.,Liu Shuang.,Wang Longhuan.,Li Ruichao.,...&Xie Jinbo.(2020).Effects of Anthropogenic Disturbances and Climate Change on Riverine Dissolved Inorganic Nitrogen Transport.JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS,12(10),105567.
MLA Wang Yan,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):105567.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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