干旱区生态环境知识资源中心(Arid): Evolution of the hydro-ecological environment and its natural and anthropogenic causes during 1985-2019 in the Nenjiang River basin

Arid

DOI	10.1016/j.scitotenv.2021.149256
	Evolution of the hydro-ecological environment and its natural and anthropogenic causes during 1985-2019 in the Nenjiang River basin
	Ma, Fenyan; Chen, Jiaqi; Chen, Jiansheng; Wang, Tao; Han, Liwen; Zhang, Xi; Yan, Jiaheng
通讯作者	Chen, JQ (corresponding author), Hohai Univ, Coll Comp & Informat Engn, Nanjing 210098, Jiangsu, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	799
英文摘要	Lakes and vegetation are important components of the hydro-ecological environment and sensitive indicators of anthropogenic climate change and human activities. For the first time, the lake area, vegetation cover change (obtained from Landsat satellite images), terrestrial water storage (TWS; estimated from the gravity recovery and climate experiment), and hydrochemistry, stable isotopes of different waterbodies were combined to analyze the long-term evolution and controlling factors of lake area and vegetation cover in the Nenjiang River basin, China. Between 1985 and 1999, the lake area experienced natural shrinkage due to climatic and hydrological changes, whereas artificial shrinkage related to increased human activities dominated during 2000-2019. The normalized difference vegetation index (NDVI) increased during 1988-1999 and was affected by hydrometeorological factors in the same year and lake area in the previous year. The rate of increase in the NDVI accelerated during 2000-2012 owing to the impact of human activities which is reflected by GDP, and the related artificial shrinkage of the lake area. The main hydrochemical type of lake water changed from Ca-HCO3 before 2000, which was similar to that of river water, to Na-HCO3 after 2000, which was the main hydrochemical type of groundwater. In addition, most of the lake water and groundwater samples were rich in H2SiO3, and a strong correlation between the TWS and lake area for the period 2003-2019 indicated that lake water was strongly affected by groundwater, which was related to deep circulation. Therefore, the decreased river water recharge owing to human activities made groundwater contribute more to lakewater. This study can substantially improve the decision-making support for environmental protection and water resource management in ecologically diverse areas, specifically in arid and semi-arid areas. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Lake shrinkage Vegetation cover Hydrochemistry Stable isotopes GRACE Water resource management
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701743500019
WOS关键词	CLIMATE-CHANGE ; LAND-USE ; CHINA ; WATER ; AZORES ; FLUXES ; LAKES ; VARIABILITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364593
作者单位	[Ma, Fenyan; Yan, Jiaheng] Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210098, Peoples R China; [Chen, Jiaqi] Hohai Univ, Coll Comp & Informat Engn, Nanjing 210098, Jiangsu, Peoples R China; [Chen, Jiansheng; Han, Liwen; Zhang, Xi] Hohai Univ, Sch Earth Sci & Engn, Nanjing 211100, Peoples R China; [Wang, Tao] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Ma, Fenyan,Chen, Jiaqi,Chen, Jiansheng,et al. Evolution of the hydro-ecological environment and its natural and anthropogenic causes during 1985-2019 in the Nenjiang River basin[J]. 河海大学,2021,799.
APA	Ma, Fenyan.,Chen, Jiaqi.,Chen, Jiansheng.,Wang, Tao.,Han, Liwen.,...&Yan, Jiaheng.(2021).Evolution of the hydro-ecological environment and its natural and anthropogenic causes during 1985-2019 in the Nenjiang River basin.SCIENCE OF THE TOTAL ENVIRONMENT,799.
MLA	Ma, Fenyan,et al."Evolution of the hydro-ecological environment and its natural and anthropogenic causes during 1985-2019 in the Nenjiang River basin".SCIENCE OF THE TOTAL ENVIRONMENT 799(2021).