干旱区生态环境知识资源中心(Arid): Relationship between Water Surface Area of Qingtu Lake and Ecological Water Delivery: A Case Study in Northwest China

Arid

DOI	10.3390/su13094684
	Relationship between Water Surface Area of Qingtu Lake and Ecological Water Delivery: A Case Study in Northwest China
	Guo, Yuntong; Shao, Jingli; Zhang, Qiulan; Cui, Yali
通讯作者	Shao, JL (corresponding author), China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2021
卷号	13 期号:9
英文摘要	Qingtu Lake is located between Tengger Desert and Badain Jilin Desert, Gansu Province, Northwest China. It is the terminal lake of Shiyang River. In recent years, Qingtu lake has maintained a certain area of water surface and vegetation by artificial water conveyance. It is of great significance in preventing the convergence of the two deserts and restraining the trend of ecological deterioration of Shiyang River Basin. The relationship between the water surface area and the ecological water conveyance have not been thoroughly investigated. This study analyzed the spatial and temporal distribution of water surface area of Qingtu Lake and surrounding reeds by interpreting remote sensing data; the change of water surface area under the influence of meteorological factors and water conveyance by linear regression; the water conveyance to maintain current water surface area by water balance method, as well as the reasonable ecological water delivery in high flow year, normal flow year and low flow year by the means of analyzing the upstream inflow and water consumption in Minqin Basin. The results showed that there is a significant correlation between the water surface area of Qingtu Lake, evaporation and ecological water conveyance, and the minimum and maximum water surface areas generally appear before and after water delivery, indicating that the ecological water delivery and evaporation are the two main factors affecting the water surface area change of Qingtu Lake. The result calculated by linear regression indicated that the ecological water delivery volume to maintain current water surface area of Qingtu Lake is 3.146 x 10(7) m(3)/yr, while the value was 3.136 x 10(7) m(3)/yr calculated by water balance method. These two results are similar and can be verified with each other. Reasonable ecological water conveyance of Qingtu Lake in high flow year, normal flow year and low flow years were 4 x 10(7) m(3)/yr, 3.2 x 10(7) m(3)/yr and 2.3 x 10(7) m(3)/yr, respectively.
英文关键词	surface area of Qingtu lake evaporation water balance reasonable ecological water conveyance
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000650907300001
WOS关键词	LOWER REACHES
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351844
作者单位	[Guo, Yuntong; Shao, Jingli; Zhang, Qiulan; Cui, Yali] China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yuntong,Shao, Jingli,Zhang, Qiulan,et al. Relationship between Water Surface Area of Qingtu Lake and Ecological Water Delivery: A Case Study in Northwest China[J],2021,13(9).
APA	Guo, Yuntong,Shao, Jingli,Zhang, Qiulan,&Cui, Yali.(2021).Relationship between Water Surface Area of Qingtu Lake and Ecological Water Delivery: A Case Study in Northwest China.SUSTAINABILITY,13(9).
MLA	Guo, Yuntong,et al."Relationship between Water Surface Area of Qingtu Lake and Ecological Water Delivery: A Case Study in Northwest China".SUSTAINABILITY 13.9(2021).