气候变化领域集成服务门户(CCPortal): Spatio-Temporal Dynamics of Terminal Lakes in the Hexi Interior, China

CCPortal

DOI	10.3390/su16010211
	Spatio-Temporal Dynamics of Terminal Lakes in the Hexi Interior, China
	Ma, Qin; Yao, Xiaojun; Zhang, Cong; Yang, Chen; Yang, Kang; Tian, Zhijuan; Li, Jiawei
发表日期	2024
EISSN	2071-1050
起始页码	16
结束页码	1
卷号	16 期号:1
英文摘要	The evolution of a terminal lake at the end of a river not only reflects the climate change characteristics within the basin but also the impact of regional human activities, especially in arid areas. In the Hexi Interior of China, three terminal lakes (e.g., Halaqi Lake, East Juyanhai Lake, and Qingtu Lake) situated in the Shule River, Heihe River and Shiyang River, respectively, have been increasingly studied to support regional ecological protection and sustainable oasis development. In this study, Landsat TM/ETM+/OLI and Sentinel-2 MSI imagery were used to examine Halaqi Lake spanning from 2017 to 2022, East Juyanhai Lake from 1990 to 2022, and Qingtu Lake from 2009 to 2022. The focus of this investigation was to characterize changes in lake area and the impact of climate change and human activities. The results revealed a dramatic change in Halaqi Lake, which suddenly emerged in 2017, initially covering an area of 13.49 km2, gradually vanishing nearly in 2021, and reappearing in 2022 with a reduced area of 9.53 km2. The area of East Juyanhai Lake was 54.39 km2 in 1990 but reduced to 40.84 km2 by 2022. Throughout this period, it encountered episodes of drying up in 1992, 1995, 2001, and 2002. Qingtu Lake emerged in 2009, with an area of 0.09 km2, and subsequently expanded to 2.60 km2 by 2022. Climate change and human activities collectively influence the area fluctuations of these three terminal lakes. Among these factors, temperature changes have a greater impact on the lake area in East Juyanhai. Global warming has worsened glacier melting in the Qilian Mountains, resulting in increased inflow in certain years and substantial lake area expansion. Human activities are the primary drivers of changes in Halaqi Lake and Qingtu Lake. Industrial water consumption is the key factor influencing area changes in Halaqi Lake, whereas water usage in forestry, animal husbandry, and fisheries plays a dominant role in the area changes of Qingtu Lake. Furthermore, the introduction of ecological water conveyance projects has had an indispensable effect on rejuvenating and preserving the watershed areas of these three terminal lakes. It is important to emphasize that human-driven water resource management is the primary cause of sudden changes in the lake areas.
英文关键词	terminal lake; climate change; ecological water conveyance; Hexi Interior
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:001140546400001
来源期刊	SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/309140
作者单位	Northwest Normal University - China
推荐引用方式 GB/T 7714	Ma, Qin,Yao, Xiaojun,Zhang, Cong,et al. Spatio-Temporal Dynamics of Terminal Lakes in the Hexi Interior, China[J],2024,16(1).
APA	Ma, Qin.,Yao, Xiaojun.,Zhang, Cong.,Yang, Chen.,Yang, Kang.,...&Li, Jiawei.(2024).Spatio-Temporal Dynamics of Terminal Lakes in the Hexi Interior, China.SUSTAINABILITY,16(1).
MLA	Ma, Qin,et al."Spatio-Temporal Dynamics of Terminal Lakes in the Hexi Interior, China".SUSTAINABILITY 16.1(2024).