Spatiotemporal variations and determinants of water pollutant discharge in the Yangtze River Economic Belt, China: A spatial econometric analysis

doi:10.1016/j.envpol.2020.116320

	Spatiotemporal variations and determinants of water pollutant discharge in the Yangtze River Economic Belt, China: A spatial econometric analysis
	Zhou, Kan 1,2; Wu, Jianxiong 1,3; Liu, Hanchu 4
刊名	ENVIRONMENTAL POLLUTION
	2021-02-15
卷号	271 页码:13
关键词	Water pollutant discharge Spatiotemporal variations Spatial effects Determinant Spatial econometric analysis Yangtze river economic belt
ISSN号	0269-7491
DOI	10.1016/j.envpol.2020.116320
通讯作者	Liu, Hanchu(liuhanc521@sina.com)
英文摘要	Water pollution is an urgent problem that needs to be controlled via green transformation and the development of the Yangtze River Economic Belt (YREB). Based on the water pollutant discharge and socio-economic database of prefecture-level cities in the YREB from 2011 to 2015, this study explores the spatiotemporal variations in water pollutant discharge in the YREB via two main indicators: chemical oxygen demand (COD) and ammonia nitrogen (NH3-N). Further, the spatial effects and determinants of water pollutant discharge are quantitatively estimated. The results show that (1) the water pollutant discharge in the YREB has decreased significantly, with the COD and NH3-N discharge reduced by 10.46% and 10.79%, respectively, and the discharge reduction in the lower reaches was the most prominent; (2) the spatial pattern of water pollutant discharge in the YREB was generally stable and partially improved, and cities with a high rate of water pollutant reduction in the YREB were distributed in the main stream region of the Yangtze River and the intersection of the main stream and tributaries; (3) spatial effects had a significant impact on water pollutant discharge in the YREB, with regional cooperation and economic radiation through environmental management and control initially showing a combined reduction trend in regional water pollutants; and (4) determinants of population size and agricultural economic share declined to varying degrees at the end of the study period, although the urbanization level continued to increase, indicating that urbanization in the YREB occurred too quickly and that water pollutant discharge reduction was limited. However, economic development leading to the deterioration of the water environment was alleviated. In addition, foreign direct investment (FDI) inflows and rapid industrialization processes must be monitored to increase the reduction in characteristic water pollutants. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41971164] ; National Natural Science Foundation of China[42001139] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23020101] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0406]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000614114100042
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160621]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Hanchu
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Reg Sustainable Dev Modelling, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Sci & Dev, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Kan,Wu, Jianxiong,Liu, Hanchu. Spatiotemporal variations and determinants of water pollutant discharge in the Yangtze River Economic Belt, China: A spatial econometric analysis[J]. ENVIRONMENTAL POLLUTION,2021,271:13.
APA	Zhou, Kan,Wu, Jianxiong,&Liu, Hanchu.(2021).Spatiotemporal variations and determinants of water pollutant discharge in the Yangtze River Economic Belt, China: A spatial econometric analysis.ENVIRONMENTAL POLLUTION,271,13.
MLA	Zhou, Kan,et al."Spatiotemporal variations and determinants of water pollutant discharge in the Yangtze River Economic Belt, China: A spatial econometric analysis".ENVIRONMENTAL POLLUTION 271(2021):13.