Influence of social and economic development on water quality in Dongting Lake

Lakes have faced the challenge of alleviating water deterioration due to rapid socioeconomic development. This fact highlights the urgency to understand the impact of socioeconomic development on water quality. Although existing studies have devoted efforts on the research of the relationship betwee...

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Autores principales:	Yu Feng, Bing-Hui Zheng, Hai-Feng Jia, Jia-Yu Peng, Xi-Yin Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Socioeconomic system Water quality Pressure-state-response model Canonical correlation analysis Influence degree Key factors Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/3319e993b51a43f684f037b6cedaa1a8
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spelling	oai:doaj.org-article:3319e993b51a43f684f037b6cedaa1a82021-12-01T05:00:51ZInfluence of social and economic development on water quality in Dongting Lake1470-160X10.1016/j.ecolind.2021.108220https://doaj.org/article/3319e993b51a43f684f037b6cedaa1a82021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21008852https://doaj.org/toc/1470-160XLakes have faced the challenge of alleviating water deterioration due to rapid socioeconomic development. This fact highlights the urgency to understand the impact of socioeconomic development on water quality. Although existing studies have devoted efforts on the research of the relationship between socioeconomic development and water quality, the theoretical basis and process of factors selection (socioeconomic factors and water quality factors) have often been ignored. A conceptual model was employed in this work to select the candidate indicators. Meanwhile, a new developed method that introduces a monthly correction coefficient was proposed to evaluate socioeconomic indicators and seasonal-trend decomposition (STL) using the locally weighted scatterplot smoothing (LOESS) method. At the same time, the steady-state transformation index (RSI) were adopted to further select water quality indicators. Base on that, canonical correlation analysis (CCA) and the measured and ideal values of water quality indicators were used to quantitatively study the degree of influence of socioeconomic systems and their key factors on water quality. The proposed methodology were applied to the Dongting Lake basin and its four sub-watersheds, the Xiang, Zi, Yuan and Li River watersheds, as these water bodies have been seriously affected by human activities in recent years. The results showed that there was a high correlation between the socioeconomic system and water quality, with significant temporal and spatial characteristics. The average annual impact degree of the socioeconomic system on water quality was at a moderate level for Dongting Lake basin and its four sub-watersheds, while the impact degree for Xiang River watershed was higher than that of the other watersheds. The influence degree decreased in the Dongting Lake basin, Xiang River and Li River watersheds, whereas the trend was the opposite in the Yuan River and Zi River watersheds from 2004 to 2017. Water consumption (WC), percentage of cultivated land area (CA), total nitrogen (TN) input from agricultural non-point sources (A_TN), and human response factors, such as industrial wastewater compliance discharge rate (WR) and sewage treatment (ST), were the main socioeconomic factors affecting the water quality of Dongting Lake. Implementation of an efficient water use plan, controlling the agricultural non-point source pollution and improving the sewage treatment capacity should be given priority in order to effectively improve the water quality of Dongting Lake. The present study showed the relationship between socioeconomic drivers and water quality, and provided a reliable tool for decision makers in watershed management.Yu FengBing-Hui ZhengHai-Feng JiaJia-Yu PengXi-Yin ZhouElsevierarticleSocioeconomic systemWater qualityPressure-state-response modelCanonical correlation analysisInfluence degreeKey factorsEcologyQH540-549.5ENEcological Indicators, Vol 131, Iss , Pp 108220- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Socioeconomic system Water quality Pressure-state-response model Canonical correlation analysis Influence degree Key factors Ecology QH540-549.5
spellingShingle	Socioeconomic system Water quality Pressure-state-response model Canonical correlation analysis Influence degree Key factors Ecology QH540-549.5 Yu Feng Bing-Hui Zheng Hai-Feng Jia Jia-Yu Peng Xi-Yin Zhou Influence of social and economic development on water quality in Dongting Lake
description	Lakes have faced the challenge of alleviating water deterioration due to rapid socioeconomic development. This fact highlights the urgency to understand the impact of socioeconomic development on water quality. Although existing studies have devoted efforts on the research of the relationship between socioeconomic development and water quality, the theoretical basis and process of factors selection (socioeconomic factors and water quality factors) have often been ignored. A conceptual model was employed in this work to select the candidate indicators. Meanwhile, a new developed method that introduces a monthly correction coefficient was proposed to evaluate socioeconomic indicators and seasonal-trend decomposition (STL) using the locally weighted scatterplot smoothing (LOESS) method. At the same time, the steady-state transformation index (RSI) were adopted to further select water quality indicators. Base on that, canonical correlation analysis (CCA) and the measured and ideal values of water quality indicators were used to quantitatively study the degree of influence of socioeconomic systems and their key factors on water quality. The proposed methodology were applied to the Dongting Lake basin and its four sub-watersheds, the Xiang, Zi, Yuan and Li River watersheds, as these water bodies have been seriously affected by human activities in recent years. The results showed that there was a high correlation between the socioeconomic system and water quality, with significant temporal and spatial characteristics. The average annual impact degree of the socioeconomic system on water quality was at a moderate level for Dongting Lake basin and its four sub-watersheds, while the impact degree for Xiang River watershed was higher than that of the other watersheds. The influence degree decreased in the Dongting Lake basin, Xiang River and Li River watersheds, whereas the trend was the opposite in the Yuan River and Zi River watersheds from 2004 to 2017. Water consumption (WC), percentage of cultivated land area (CA), total nitrogen (TN) input from agricultural non-point sources (A_TN), and human response factors, such as industrial wastewater compliance discharge rate (WR) and sewage treatment (ST), were the main socioeconomic factors affecting the water quality of Dongting Lake. Implementation of an efficient water use plan, controlling the agricultural non-point source pollution and improving the sewage treatment capacity should be given priority in order to effectively improve the water quality of Dongting Lake. The present study showed the relationship between socioeconomic drivers and water quality, and provided a reliable tool for decision makers in watershed management.
format	article
author	Yu Feng Bing-Hui Zheng Hai-Feng Jia Jia-Yu Peng Xi-Yin Zhou
author_facet	Yu Feng Bing-Hui Zheng Hai-Feng Jia Jia-Yu Peng Xi-Yin Zhou
author_sort	Yu Feng
title	Influence of social and economic development on water quality in Dongting Lake
title_short	Influence of social and economic development on water quality in Dongting Lake
title_full	Influence of social and economic development on water quality in Dongting Lake
title_fullStr	Influence of social and economic development on water quality in Dongting Lake
title_full_unstemmed	Influence of social and economic development on water quality in Dongting Lake
title_sort	influence of social and economic development on water quality in dongting lake
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/3319e993b51a43f684f037b6cedaa1a8
work_keys_str_mv	AT yufeng influenceofsocialandeconomicdevelopmentonwaterqualityindongtinglake AT binghuizheng influenceofsocialandeconomicdevelopmentonwaterqualityindongtinglake AT haifengjia influenceofsocialandeconomicdevelopmentonwaterqualityindongtinglake AT jiayupeng influenceofsocialandeconomicdevelopmentonwaterqualityindongtinglake AT xiyinzhou influenceofsocialandeconomicdevelopmentonwaterqualityindongtinglake
_version_	1718405591879122944

Influence of social and economic development on water quality in Dongting Lake

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