Characteristics and influencing factors of proximity distance index on the northern Shaanxi Loess Plateau in China

doi:10.1007/s11629-019-5610-9

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.12

	Characteristics and influencing factors of proximity distance index on the northern Shaanxi Loess Plateau in China
	Zhou Yi; Lei Xue; Yang Feng; Li Yang; Wang Bin
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:12 页码:2844-2855
关键词	Digital elevation model (DEM) Proximity distance Terrain factor Digital terrain analysis Loess Plateau
ISSN号	1672-6316
DOI	10.1007/s11629-019-5610-9
文献子类	Article
英文摘要	Topographic feature points and lines are the framework of topography, and their spatial distance relationship is an breakthrough in the study of topographical geometry, internal structure and development level. Proximity distance (PD) is an indicator to describe the distance between the gully source point (GSP) and the watershed boundary. In the upstream catchment area, PDs can be expressed by the streamline proximity distance (SPD), as well as by the horizontal proximity distance (HPD) and the vertical proximity distance (VPD) in the horizontal and vertical dimensions, respectively. The series of indicators (e.g., SPD, HPD and VPD) are important for quantifying the geomorphological development process of a loess basin because of the headward erosion of loess gullies. In this study, the digital elevation model data with 5 m resolution and a digital topographic analysis method are used for the statistical analyses of the SPD, VPD and HPD in 50 sample areas of 6 geomorphic types in the Loess Plateau of northern Shaanxi. The spatial characteristics and the influencing factors are also analysed. Results show that: 1) Central tendencies for the HPDs and the VPDs for the whole study area and the six typical loess landforms are evident. 2) Spatial patterns of the HPDs and the VPDs exhibit evident trends and zonal distributions over the whole study area. 3) The HPDs have a strong positive correlation with gully density (GD) and hypsometric integral. The VPDs also correlates with GD to an extent. Vegetation cover, mean annual precipitation and loess thickness have stronger effects on the VPD than on the HPD.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000502451800011
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46635]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.12
推荐引用方式 GB/T 7714	Zhou Yi,Lei Xue,Yang Feng,et al. Characteristics and influencing factors of proximity distance index on the northern Shaanxi Loess Plateau in China[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(12):2844-2855.
APA	Zhou Yi,Lei Xue,Yang Feng,Li Yang,&Wang Bin.(2019).Characteristics and influencing factors of proximity distance index on the northern Shaanxi Loess Plateau in China.JOURNAL OF MOUNTAIN SCIENCE,16(12),2844-2855.
MLA	Zhou Yi,et al."Characteristics and influencing factors of proximity distance index on the northern Shaanxi Loess Plateau in China".JOURNAL OF MOUNTAIN SCIENCE 16.12(2019):2844-2855.