Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019

The Yangtze River Basin has a wide range and complicated topography. In recent years, under the background of climate and land cover change, the ecological response of the whole ecological quality of the Yangtze River Basin is still unknown. To reveal the spatiotemporal changes in ecological quality...

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Autores principales:	Xinyue Yang, Fei Meng, Pingjie Fu, Yuxuan Zhang, Yaohui Liu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	RSEI Yangtze River Basin Remote sensing monitoring Ecological quality Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/575ab0f00c9e4d85a4c1c91b23ba0a76
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id	oai:doaj.org-article:575ab0f00c9e4d85a4c1c91b23ba0a76
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spelling	oai:doaj.org-article:575ab0f00c9e4d85a4c1c91b23ba0a762021-12-01T05:00:46ZSpatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 20191470-160X10.1016/j.ecolind.2021.108214https://doaj.org/article/575ab0f00c9e4d85a4c1c91b23ba0a762021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21008797https://doaj.org/toc/1470-160XThe Yangtze River Basin has a wide range and complicated topography. In recent years, under the background of climate and land cover change, the ecological response of the whole ecological quality of the Yangtze River Basin is still unknown. To reveal the spatiotemporal changes in ecological quality in the Yangtze River Basin from 2001 to 2019 and their relationship with environmental and topographical factors, this study used the Google Earth Engine (GEE) platform to calculate the remote sensing ecological index (RSEI) based on the Moderate-resolution Imaging Spectroradiometer (MODIS) product image set, combined with the digital elevation data set and statistical yearbook. The data evaluated the ecological quality of the Yangtze River Basin and analyzed its causes. The results showed that: 1) the average RSEI of the Yangtze River Basin showed an overall upward trend, the growth rate was 0.027 (year−1), and the variation ranged from 0.5 to 0.568. The overall ecological quality rank was mainly neutral and slightly good. 2) The ecological quality of 85.7% of the Yangtze River Basin remains stable. A total of 11.2% of the regional ecological quality is improving, and 3.1% of the regional ecological quality is declining. Areas with reduced ecological quality are concentrated in the Hengduan Mountains. The dominant LST factor drives the deterioration of its ecological quality at a rate of −1.06 (year−1). The areas with improved ecological quality are concentrated in the upper and middle reaches of the Yangtze River. The dominant WET factor drives its ecological quality to improve at a rate of 0.27 (year−1). 3) From the perspective of topography, the ecological quality of the Yangtze River basin shows a wave-like decline and first rises and then falls in elevation and slope (the elevation is bounded by 2000 m and 6000 m, and the slope is bounded by 15°.). The average RSEI of the Yangtze River Basin is the highest on the northwest slope (0.554), and the ecological quality of sunny slopes is generally higher than that of shady slopes. The research shows that from 2001 to 2019, the overall ecological quality of the Yangtze River Basin has improved and evolved, but the ecological quality of the Hengduan Mountains has declined. Therefore, implementing different ecological protection policies in different regions is an important strategy for enhancing the stability of the ecosystem.Xinyue YangFei MengPingjie FuYuxuan ZhangYaohui LiuElsevierarticleRSEIYangtze River BasinRemote sensing monitoringEcological qualityEcologyQH540-549.5ENEcological Indicators, Vol 131, Iss , Pp 108214- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	RSEI Yangtze River Basin Remote sensing monitoring Ecological quality Ecology QH540-549.5
spellingShingle	RSEI Yangtze River Basin Remote sensing monitoring Ecological quality Ecology QH540-549.5 Xinyue Yang Fei Meng Pingjie Fu Yuxuan Zhang Yaohui Liu Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
description	The Yangtze River Basin has a wide range and complicated topography. In recent years, under the background of climate and land cover change, the ecological response of the whole ecological quality of the Yangtze River Basin is still unknown. To reveal the spatiotemporal changes in ecological quality in the Yangtze River Basin from 2001 to 2019 and their relationship with environmental and topographical factors, this study used the Google Earth Engine (GEE) platform to calculate the remote sensing ecological index (RSEI) based on the Moderate-resolution Imaging Spectroradiometer (MODIS) product image set, combined with the digital elevation data set and statistical yearbook. The data evaluated the ecological quality of the Yangtze River Basin and analyzed its causes. The results showed that: 1) the average RSEI of the Yangtze River Basin showed an overall upward trend, the growth rate was 0.027 (year−1), and the variation ranged from 0.5 to 0.568. The overall ecological quality rank was mainly neutral and slightly good. 2) The ecological quality of 85.7% of the Yangtze River Basin remains stable. A total of 11.2% of the regional ecological quality is improving, and 3.1% of the regional ecological quality is declining. Areas with reduced ecological quality are concentrated in the Hengduan Mountains. The dominant LST factor drives the deterioration of its ecological quality at a rate of −1.06 (year−1). The areas with improved ecological quality are concentrated in the upper and middle reaches of the Yangtze River. The dominant WET factor drives its ecological quality to improve at a rate of 0.27 (year−1). 3) From the perspective of topography, the ecological quality of the Yangtze River basin shows a wave-like decline and first rises and then falls in elevation and slope (the elevation is bounded by 2000 m and 6000 m, and the slope is bounded by 15°.). The average RSEI of the Yangtze River Basin is the highest on the northwest slope (0.554), and the ecological quality of sunny slopes is generally higher than that of shady slopes. The research shows that from 2001 to 2019, the overall ecological quality of the Yangtze River Basin has improved and evolved, but the ecological quality of the Hengduan Mountains has declined. Therefore, implementing different ecological protection policies in different regions is an important strategy for enhancing the stability of the ecosystem.
format	article
author	Xinyue Yang Fei Meng Pingjie Fu Yuxuan Zhang Yaohui Liu
author_facet	Xinyue Yang Fei Meng Pingjie Fu Yuxuan Zhang Yaohui Liu
author_sort	Xinyue Yang
title	Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
title_short	Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
title_full	Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
title_fullStr	Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
title_full_unstemmed	Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019
title_sort	spatiotemporal change and driving factors of the eco-environment quality in the yangtze river basin from 2001 to 2019
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/575ab0f00c9e4d85a4c1c91b23ba0a76
work_keys_str_mv	AT xinyueyang spatiotemporalchangeanddrivingfactorsoftheecoenvironmentqualityintheyangtzeriverbasinfrom2001to2019 AT feimeng spatiotemporalchangeanddrivingfactorsoftheecoenvironmentqualityintheyangtzeriverbasinfrom2001to2019 AT pingjiefu spatiotemporalchangeanddrivingfactorsoftheecoenvironmentqualityintheyangtzeriverbasinfrom2001to2019 AT yuxuanzhang spatiotemporalchangeanddrivingfactorsoftheecoenvironmentqualityintheyangtzeriverbasinfrom2001to2019 AT yaohuiliu spatiotemporalchangeanddrivingfactorsoftheecoenvironmentqualityintheyangtzeriverbasinfrom2001to2019
_version_	1718405600258293760

Spatiotemporal change and driving factors of the Eco-Environment quality in the Yangtze River Basin from 2001 to 2019

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