干旱区生态环境知识资源中心(Arid): Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China

Arid

DOI	10.3390/f15030487
	Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China
	Wang, Zhen; Fan, Liangxin; Su, Jingxuan; Wang, Zhijun
通讯作者	Fan, LX
来源期刊	FORESTS
EISSN	1999-4907
出版年	2024
卷号	15 期号:3
英文摘要	The ecological water transfer project (EWTP) plays a pivotal role in reinstating the flow of dried-up rivers in arid regions, promoting river connectivity and vegetation resurgence. An essential facet in ensuring the efficacious execution of the EWTP lies in determining the optimal duration of irrigation to facilitate vegetation recovery. Nevertheless, comprehensive reports concerning the EWTP process in arid river ecosystems are scarce. Here, we leverage remote sensing imagery to assess changes in surface water and vegetation dynamics before and after the implementation of the EWTP in a dried-up river. The results show that before the EWTP (1987-2016), riparian vegetation's mean normalized difference vegetation index (NDVI) decreased from 0.181 to 0.066. After EWTP (2017-2022), the river's flow was restored for a distance of 347 km. This restoration resulted in the formation of 81.47 km2 of intermittent water bodies along the river. The mean NDVI increased from 0.065 to 0.093. As irrigation duration increased, the NDVI growth rate exhibited an initial rise followed by a subsequent decline, reaching its peak growth rate by irrigating for 18 days per year. The regions showing increased NDVI values exhibited a pronounced spatial correlation with the areas subjected to water transfer. These improvements in NDVI were predominantly concentrated on both sides of the river within a 550 m range. Interestingly, as moves farther away from the river, the growth rate of NDVI exhibited an initial increase followed by a subsequent decline. The pinnacle of NDVI growth rate materialized at a distance of 40-50 m from the river. These findings reveal the response characteristics of desert riparian vegetation to EWTP, providing valuable insights for selecting appropriate water transfer timing in future EWTP.
英文关键词	remote sensing vegetation index surface water water-stressed region river restoration
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001191523800001
WOS关键词	LOWER TARIM RIVER ; LOWER REACHES ; RIPARIAN VEGETATION ; POPULUS-EUPHRATICA ; RESTORATION ; GROUNDWATER ; CONVEYANCE ; BASIN ; XINJIANG ; LANDSAT
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403781
推荐引用方式 GB/T 7714	Wang, Zhen,Fan, Liangxin,Su, Jingxuan,et al. Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China[J],2024,15(3).
APA	Wang, Zhen,Fan, Liangxin,Su, Jingxuan,&Wang, Zhijun.(2024).Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China.FORESTS,15(3).
MLA	Wang, Zhen,et al."Impact of Ecological Water Transfer Project on Vegetation Recovery in Dried-Up Kongque River, Northwest China".FORESTS 15.3(2024).