干旱区生态环境知识资源中心(Arid): Vegetation restoration reduces the spatial heterogeneity of sediment transport in the middle reaches of the Yellow River, China

Arid

DOI	10.1016/j.ecoleng.2023.107036
	Vegetation restoration reduces the spatial heterogeneity of sediment transport in the middle reaches of the Yellow River, China
	Gao, Haidong; Hao, Xinjing; Sun, Yangrui; Jia, Lianlian
通讯作者	Gao, HD
来源期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
EISSN	1872-6992
出版年	2023
卷号	194
英文摘要	Vegetation changes have a significant impact on the runoff and sediment process of rivers in arid areas. Since 2000, the middle reaches of the Yellow River Basin have experienced rapid vegetation restoration, and the sediment transport in this area has also shown a significant decreasing trend. In this paper, we selected 10 rivers from north to south located in the middle reaches of the Yellow River as the research area, and analyzed the temporal and spatial characteristics of vegetation restoration and changes in runoff and sediment, as well as the effects of vegetation restoration on runoff and sediment process. The results show that sediment transport modulus in the middle reaches of the Yellow River are very significantly decreasing (p < 0.001), and the rate of change of the northern rivers is higher than that of the southern rivers. During the periods of 1956-1979 and 1980-1999, the sediment transport modulus showed a very significant decreasing trend from north to south (p < 0.001), but the trend of significantly decreasing the sediment transport modulus from north to south from 2000 to 2020 no longer existed (p = 0.761), after 2000, the middle reaches of the Yellow River underwent a rapid process of vegetation restoration, vegetation restoration significantly reduced the spatial heterogeneity of river sediment transport. Partial correlation analysis and sensitivity analysis show that, there was no significant correlation between vegetation restoration and runoff reduction (R2 = 0.03, p = 0.63), but there was a significant correlation between vegetation restoration and reduced sediment transport modulus (R2 = 0.49, p < 0.05), and a significant correlation between vegetation restoration and decreased sediment concentration (R2 = 0.66, p < 0.01). During the periods of 1981-1999 and 2000 - 2020, the relationship between precipitation and sediment transport modulus was positively correlated. In the 1981-1999 period, NDVI showed a weak negative correlation with sediment transport modulus but in the 2000 - 2020 period, NDVI and sediment transport modulus showed a significant negative correlation. This study provides valuable insights into the natural response of river sediment transport to vegetation restoration, and the findings are critical for soil and water conservation planning in arid area.
英文关键词	Vegetation restoration Sediment transport Spatial heterogeneity Time series analysis Yellow River
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001025564400001
WOS关键词	LOESS PLATEAU ; PRECIPITATION ; IMPACTS ; WATER ; LOAD ; TRENDS
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395906
推荐引用方式 GB/T 7714	Gao, Haidong,Hao, Xinjing,Sun, Yangrui,et al. Vegetation restoration reduces the spatial heterogeneity of sediment transport in the middle reaches of the Yellow River, China[J],2023,194.
APA	Gao, Haidong,Hao, Xinjing,Sun, Yangrui,&Jia, Lianlian.(2023).Vegetation restoration reduces the spatial heterogeneity of sediment transport in the middle reaches of the Yellow River, China.ECOLOGICAL ENGINEERING,194.
MLA	Gao, Haidong,et al."Vegetation restoration reduces the spatial heterogeneity of sediment transport in the middle reaches of the Yellow River, China".ECOLOGICAL ENGINEERING 194(2023).