Quantitative analysis and spatial distribution of slope spectrum - A case study in the Loess Plateau in north Shaanxi province

doi:10.1117/12.761894

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 > 成都山地所知识仓储（2009年以前）

	Quantitative analysis and spatial distribution of slope spectrum - A case study in the Loess Plateau in north Shaanxi province
	Fayuan Li 1,2; Guoan Tang 1; Chun Wang 1; Ting Zhang 1
	2007
会议日期	MAY 25-27, 2007
会议地点	Nanjing
关键词	Loess Plateau slope spectrum spatial distribution information entropy skewness terrain driving force
卷号	6753
DOI	10.1117/12.761894
页码	67531R
国家	PEOPLES R CHINA
英文摘要	Slope spectrum is defined as a statistic model of slope distribution in a certain area. Previous researches mainly focus on morphology depiction of the slope spectrum; its spatial distribution is unknown yet, especially in the Loess Plateau. Theory and methodology of information entropy and statistics are applied for the objective of quantitatively analyzing the slope spectrum and its spatial distribution in the Loess Plateau in North Shaanxi province. Experiment results show that slope spectrum's information entropy (H), skewness of slope spectrum (S) and terrain driving force factor (T-d) can appropriately depict the slope spectrum and its spatial distribution from different points of view. Spatial distribution of the slope spectrum represents spatial distribution of loess landform types, and it is correlatable with spatial distribution of soil erosion intensity in the Loess Plateau. H, Td and gully density, surface incision depth show positive correlation: gully density and surface incision increase as H, Td increase. On the contrary, the S and gully density, surface incision depth show negative correlation. Lastly, spatial relationship between slope spectrum and loess landform types are qualitatively analyzed, and loess landform evolution as well.
源文献作者	Chen, J
产权排序	1
会议录	GEOINFORMATICS 2007: GEOSPATIAL INFORMATION SCIENCE, PTS 1 AND 2
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	BELLINGHAM
语种	英语
ISSN号	0277-786X
ISBN号	978-0-8194-6913-7
WOS记录号	WOS:000251055500062
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/33470]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
通讯作者	Fayuan Li
作者单位	1.Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, No.1, Wenyuan road, Xianlin Campus, Nanjing, Jiangsu, P.R.C. 210046; 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No.9, Block 4, Renmingnan Road, Chengdu, Sichuan, P.R.C. 610041
推荐引用方式 GB/T 7714	Fayuan Li,Guoan Tang,Chun Wang,et al. Quantitative analysis and spatial distribution of slope spectrum - A case study in the Loess Plateau in north Shaanxi province[C]. 见:. Nanjing. MAY 25-27, 2007.