干旱区生态环境知识资源中心(Arid): Drainage Density and Its Controlling Factors on the Eastern Margin of the Qinghai-Tibet Plateau

Arid

DOI	10.3389/feart.2021.755197
	Drainage Density and Its Controlling Factors on the Eastern Margin of the Qinghai-Tibet Plateau
	Gao, Hongshan; Liu, Fenliang; Yan, Tianqi; Qin, Lin; Li, Zongmeng
通讯作者	Liu, FL (corresponding author)，Hunan City Univ, Dept Geog Informat Syst Sci, Yiyang, Peoples R China.
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2022
卷号	9
英文摘要	The drainage density (D-d) is an important index to show fluvial geomorphology. The study on D-d is helpful to understand the evolution of the whole hydrological and geomorphic process. Based on the Shuttle Radar Topography Mission 90-m digital elevation model, the drainage network of basins along the eastern margin of the Qinghai-Tibet Plateau is extracted using a terrain morphology-based method in ArcGIS 10.3, and D-d is calculated. The spatial characteristics of D-d are analyzed, and the relationship between D-d and its influencing factors, e.g., the topography, precipitation, and vegetation coverage, is explored. Our results show that terrains with a plan curvature >= 3 can represent the channels in the study area. D-d ranges from 2.5 to 0.1 km/km(2), increases first, and then decreases from north to south on the eastern margin of the Qinghai-Tibet Plateau. D-d decreases with increasing average slope and average local relief. On the low-relief planation surfaces, D-d increases with increasing altitude, while on the rugged mountainous above planation surfaces, D-d decreases rapidly with increasing altitude. D-d first increased and then decreased with increasing mean annual precipitation (MAP) and normalized difference vegetation index (NDVI), and D-d reaches a maximum in the West Qinling Mountains with a semi-arid environment, indicating that D-d in different climatic regions of the eastern margin of the Qinghai-Tibet Plateau was mainly controlled by precipitation and vegetation.
英文关键词	drainage density terrain analysis topographic factor precipitation eastern margin of the Qinghai-Tibet Plateau
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:000745137100001
WOS关键词	HIGH-RESOLUTION TOPOGRAPHY ; CHANNEL NETWORKS ; EXTRACTION ; RIVER ; EVOLUTION ; EROSION ; CLIMATE ; SURFACE ; LITHOLOGY ; INSIGHTS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376630
作者单位	[Gao, Hongshan; Yan, Tianqi; Qin, Lin] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Enviromental Syst, Minist Educ, Lanzhou, Peoples R China; [Liu, Fenliang] Hunan City Univ, Dept Geog Informat Syst Sci, Yiyang, Peoples R China; [Li, Zongmeng] Xinyang Normal Univ, Sch Geog Sci, Xinyang, Peoples R China
推荐引用方式 GB/T 7714	Gao, Hongshan,Liu, Fenliang,Yan, Tianqi,et al. Drainage Density and Its Controlling Factors on the Eastern Margin of the Qinghai-Tibet Plateau[J],2022,9.
APA	Gao, Hongshan,Liu, Fenliang,Yan, Tianqi,Qin, Lin,&Li, Zongmeng.(2022).Drainage Density and Its Controlling Factors on the Eastern Margin of the Qinghai-Tibet Plateau.FRONTIERS IN EARTH SCIENCE,9.
MLA	Gao, Hongshan,et al."Drainage Density and Its Controlling Factors on the Eastern Margin of the Qinghai-Tibet Plateau".FRONTIERS IN EARTH SCIENCE 9(2022).