Trend and change points of streamflow in the Yellow River and their attributions

The impacts of climate change and human activity, combined with streamflow reduction in the Yellow River Basin, have presented significant challenges to water resource management strategies. Here, the trends and change points of streamflow were determined for the period 1956–2017 via five statistica...

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Autores principales:	Dunyu Zhong, Zengchuan Dong, Guobin Fu, Jiaqi Bian, Feihe Kong, Wenzhuo Wang, Yan Zhao
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	climate change human activities streamflow variation yellow river Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/a6961a1169fb42ff97cb341c5084c99f
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spelling	oai:doaj.org-article:a6961a1169fb42ff97cb341c5084c99f2021-11-05T18:40:53ZTrend and change points of streamflow in the Yellow River and their attributions2040-22442408-935410.2166/wcc.2020.144https://doaj.org/article/a6961a1169fb42ff97cb341c5084c99f2021-02-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/1/136https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354The impacts of climate change and human activity, combined with streamflow reduction in the Yellow River Basin, have presented significant challenges to water resource management strategies. Here, the trends and change points of streamflow were determined for the period 1956–2017 via five statistical methods. A runoff-sensitive coefficients method (the Budyko hypothesis) and a conceptual rainfall–runoff model (the TUW model) were applied to assess the streamflow variation. The following conclusions were ascertained: (1) 1989, 1986, and 1990 were the change points for streamflow in the upstream Tang-Nai-Hai and Lan-Zhou stations and the downstream Hua-Yuan-Kou hydrological station; (2) the streamflow showed statistically significant decreasing trends with spatiotemporal variations in the Yellow River Basin; (3) the relationship between runoff and precipitation showed a downward trend over time; (4) comparisons of the Budyko and TUW models show that human activity is responsible for more than 65% of streamflow reduction, while climate change contributes to less than 35% of the reduction. Therefore, human activity is the main reason for streamflow reduction in the Yellow River Basin. This finding is of critical importance for water resources management under changing environment.Dunyu ZhongZengchuan DongGuobin FuJiaqi BianFeihe KongWenzhuo WangYan ZhaoIWA Publishingarticleclimate changehuman activitiesstreamflow variationyellow riverEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 1, Pp 136-151 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change human activities streamflow variation yellow river Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	climate change human activities streamflow variation yellow river Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Dunyu Zhong Zengchuan Dong Guobin Fu Jiaqi Bian Feihe Kong Wenzhuo Wang Yan Zhao Trend and change points of streamflow in the Yellow River and their attributions
description	The impacts of climate change and human activity, combined with streamflow reduction in the Yellow River Basin, have presented significant challenges to water resource management strategies. Here, the trends and change points of streamflow were determined for the period 1956–2017 via five statistical methods. A runoff-sensitive coefficients method (the Budyko hypothesis) and a conceptual rainfall–runoff model (the TUW model) were applied to assess the streamflow variation. The following conclusions were ascertained: (1) 1989, 1986, and 1990 were the change points for streamflow in the upstream Tang-Nai-Hai and Lan-Zhou stations and the downstream Hua-Yuan-Kou hydrological station; (2) the streamflow showed statistically significant decreasing trends with spatiotemporal variations in the Yellow River Basin; (3) the relationship between runoff and precipitation showed a downward trend over time; (4) comparisons of the Budyko and TUW models show that human activity is responsible for more than 65% of streamflow reduction, while climate change contributes to less than 35% of the reduction. Therefore, human activity is the main reason for streamflow reduction in the Yellow River Basin. This finding is of critical importance for water resources management under changing environment.
format	article
author	Dunyu Zhong Zengchuan Dong Guobin Fu Jiaqi Bian Feihe Kong Wenzhuo Wang Yan Zhao
author_facet	Dunyu Zhong Zengchuan Dong Guobin Fu Jiaqi Bian Feihe Kong Wenzhuo Wang Yan Zhao
author_sort	Dunyu Zhong
title	Trend and change points of streamflow in the Yellow River and their attributions
title_short	Trend and change points of streamflow in the Yellow River and their attributions
title_full	Trend and change points of streamflow in the Yellow River and their attributions
title_fullStr	Trend and change points of streamflow in the Yellow River and their attributions
title_full_unstemmed	Trend and change points of streamflow in the Yellow River and their attributions
title_sort	trend and change points of streamflow in the yellow river and their attributions
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/a6961a1169fb42ff97cb341c5084c99f
work_keys_str_mv	AT dunyuzhong trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT zengchuandong trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT guobinfu trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT jiaqibian trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT feihekong trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT wenzhuowang trendandchangepointsofstreamflowintheyellowriverandtheirattributions AT yanzhao trendandchangepointsofstreamflowintheyellowriverandtheirattributions
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Trend and change points of streamflow in the Yellow River and their attributions

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