Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas

The earth has been reshaped for millennia. The accelerating pace of anthropogenic activities has generated enormous impacts on the water environment. As one of the main drivers of landscape change, anthropogenic disturbance has brought many negative effects on rivers. Studying the relationship betwe...

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Autores principales:	Li Ji, Yuan Li, Guixiang Zhang, Yonghong Bi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hemeroby land-use covers the Loess Plateau trophic state water quality Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/35b8299b9d444303898cf4ef189dd766
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spelling	oai:doaj.org-article:35b8299b9d444303898cf4ef189dd7662021-11-25T19:16:41ZAnthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas10.3390/w132233052073-4441https://doaj.org/article/35b8299b9d444303898cf4ef189dd7662021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3305https://doaj.org/toc/2073-4441The earth has been reshaped for millennia. The accelerating pace of anthropogenic activities has generated enormous impacts on the water environment. As one of the main drivers of landscape change, anthropogenic disturbance has brought many negative effects on rivers. Studying the relationship between anthropogenic disturbances and river water quality is of significance for regional conservation and ecosystem management, while the relationship remains poorly understood in the current. In this study, we quantified anthropogenic disturbances by introducing the concept of the hemeroby index and evaluated rivers’ water quality in eight sub-watersheds on the Loess Plateau. The results indicated that 37.5% of the sub-watersheds were in Eutrophic status, and 62.5% were in Marginal water quality index. The river water quality was most poor in the southwestern region near the Yellow River with high-level anthropogenic disturbance. A correlation analysis between water quality indicators and hemeroby suggested that anthropogenic disturbance contributed to a significant water quality deterioration trend (<i>p</i> < 0.01). The river water quality was relatively sensitive to the changes of completely disturbed land-use covers, including urban and industrial land. Our findings provide theoretical guidance for regional water resources conservation and ecosystem management in arid areas.Li JiYuan LiGuixiang ZhangYonghong BiMDPI AGarticlehemerobyland-use coversthe Loess Plateautrophic statewater qualityHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3305, p 3305 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hemeroby land-use covers the Loess Plateau trophic state water quality Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	hemeroby land-use covers the Loess Plateau trophic state water quality Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Li Ji Yuan Li Guixiang Zhang Yonghong Bi Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
description	The earth has been reshaped for millennia. The accelerating pace of anthropogenic activities has generated enormous impacts on the water environment. As one of the main drivers of landscape change, anthropogenic disturbance has brought many negative effects on rivers. Studying the relationship between anthropogenic disturbances and river water quality is of significance for regional conservation and ecosystem management, while the relationship remains poorly understood in the current. In this study, we quantified anthropogenic disturbances by introducing the concept of the hemeroby index and evaluated rivers’ water quality in eight sub-watersheds on the Loess Plateau. The results indicated that 37.5% of the sub-watersheds were in Eutrophic status, and 62.5% were in Marginal water quality index. The river water quality was most poor in the southwestern region near the Yellow River with high-level anthropogenic disturbance. A correlation analysis between water quality indicators and hemeroby suggested that anthropogenic disturbance contributed to a significant water quality deterioration trend (<i>p</i> < 0.01). The river water quality was relatively sensitive to the changes of completely disturbed land-use covers, including urban and industrial land. Our findings provide theoretical guidance for regional water resources conservation and ecosystem management in arid areas.
format	article
author	Li Ji Yuan Li Guixiang Zhang Yonghong Bi
author_facet	Li Ji Yuan Li Guixiang Zhang Yonghong Bi
author_sort	Li Ji
title	Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
title_short	Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
title_full	Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
title_fullStr	Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
title_full_unstemmed	Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas
title_sort	anthropogenic disturbances have contributed to degradation of river water quality in arid areas
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/35b8299b9d444303898cf4ef189dd766
work_keys_str_mv	AT liji anthropogenicdisturbanceshavecontributedtodegradationofriverwaterqualityinaridareas AT yuanli anthropogenicdisturbanceshavecontributedtodegradationofriverwaterqualityinaridareas AT guixiangzhang anthropogenicdisturbanceshavecontributedtodegradationofriverwaterqualityinaridareas AT yonghongbi anthropogenicdisturbanceshavecontributedtodegradationofriverwaterqualityinaridareas
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Anthropogenic Disturbances Have Contributed to Degradation of River Water Quality in Arid Areas

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