Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015

The mid-lower reaches of the Hanjiang River Basin, located in the core of economic development in Hubei Province, is an integral part of the Yangtze River Economic Belt. In recent years, the watershed ecosystem has become more sensitive to climate changes and human activities, thus affecting the reg...

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Autores principales:	Zhan Yunjun, Fan Jiemeng, Meng Tingting, Li Zhongwu, Yan Yan, Huang Jiejun, Chen Di, Sui Lintong
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	ndvig watershed ecology spatial-temporal characteristic climate change human activities mid-lower reaches of hanjiang river basin Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/1894a8f8cb47464cad6f3f08e43e78b6
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id	oai:doaj.org-article:1894a8f8cb47464cad6f3f08e43e78b6
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spelling	oai:doaj.org-article:1894a8f8cb47464cad6f3f08e43e78b62021-12-05T14:10:48ZAnalysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 20152391-544710.1515/geo-2020-0259https://doaj.org/article/1894a8f8cb47464cad6f3f08e43e78b62021-06-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0259https://doaj.org/toc/2391-5447The mid-lower reaches of the Hanjiang River Basin, located in the core of economic development in Hubei Province, is an integral part of the Yangtze River Economic Belt. In recent years, the watershed ecosystem has become more sensitive to climate changes and human activities, thus affecting the regional vegetation cover. To maintain a stable watershed ecosystem, it is critical to analyze and evaluate the vegetation change and its response to temperature, precipitation, and human activities in this region. This study, based on the trend analysis, partial correlation analysis, and residual analysis, evaluated the change characteristics of vegetation cover as well as the corresponding driving factors in the basin from 2001 to 2015. The results showed that (1) the overall spatial pattern of vegetation cover in the study area was “high in the west and north, lower on both sides of Hanjiang River, and lowest in the center and southeast,” and the pattern changed parabolically with the increasing elevation. (2) Over the 15 years, vegetation cover in the basin showed an increasing trend, and the increased and decreased areas were 90.72 and 9.23%, respectively. (3) The response of vegetation cover to climatic factors varies greatly depending on the increasing elevation. That is, the lag effect under the impact of temperature disappeared gradually, while it became more evident under the impact of precipitation. (4) On the whole, human activities had a positive effect on the regional vegetation cover. The negative effect in the areas around the Nanyang Basin and the positive effect in most parts of the Jianghan Plain were gradually decreased.Zhan YunjunFan JiemengMeng TingtingLi ZhongwuYan YanHuang JiejunChen DiSui LintongDe Gruyterarticlendvig watershed ecologyspatial-temporal characteristicclimate changehuman activitiesmid-lower reaches of hanjiang river basinGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 675-689 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ndvig watershed ecology spatial-temporal characteristic climate change human activities mid-lower reaches of hanjiang river basin Geology QE1-996.5
spellingShingle	ndvig watershed ecology spatial-temporal characteristic climate change human activities mid-lower reaches of hanjiang river basin Geology QE1-996.5 Zhan Yunjun Fan Jiemeng Meng Tingting Li Zhongwu Yan Yan Huang Jiejun Chen Di Sui Lintong Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
description	The mid-lower reaches of the Hanjiang River Basin, located in the core of economic development in Hubei Province, is an integral part of the Yangtze River Economic Belt. In recent years, the watershed ecosystem has become more sensitive to climate changes and human activities, thus affecting the regional vegetation cover. To maintain a stable watershed ecosystem, it is critical to analyze and evaluate the vegetation change and its response to temperature, precipitation, and human activities in this region. This study, based on the trend analysis, partial correlation analysis, and residual analysis, evaluated the change characteristics of vegetation cover as well as the corresponding driving factors in the basin from 2001 to 2015. The results showed that (1) the overall spatial pattern of vegetation cover in the study area was “high in the west and north, lower on both sides of Hanjiang River, and lowest in the center and southeast,” and the pattern changed parabolically with the increasing elevation. (2) Over the 15 years, vegetation cover in the basin showed an increasing trend, and the increased and decreased areas were 90.72 and 9.23%, respectively. (3) The response of vegetation cover to climatic factors varies greatly depending on the increasing elevation. That is, the lag effect under the impact of temperature disappeared gradually, while it became more evident under the impact of precipitation. (4) On the whole, human activities had a positive effect on the regional vegetation cover. The negative effect in the areas around the Nanyang Basin and the positive effect in most parts of the Jianghan Plain were gradually decreased.
format	article
author	Zhan Yunjun Fan Jiemeng Meng Tingting Li Zhongwu Yan Yan Huang Jiejun Chen Di Sui Lintong
author_facet	Zhan Yunjun Fan Jiemeng Meng Tingting Li Zhongwu Yan Yan Huang Jiejun Chen Di Sui Lintong
author_sort	Zhan Yunjun
title	Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
title_short	Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
title_full	Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
title_fullStr	Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
title_full_unstemmed	Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
title_sort	analysis on vegetation cover changes and the driving factors in the mid-lower reaches of hanjiang river basin between 2001 and 2015
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/1894a8f8cb47464cad6f3f08e43e78b6
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Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015

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