Study on a soil erosion sampling survey in the Pan-Third Pole region based on higher-resolution images

doi:10.1016/j.iswcr.2020.07.005

	Study on a soil erosion sampling survey in the Pan-Third Pole region based on higher-resolution images
	Yang, Qinke 2; Zhu, Mengyang 2; Wang, Chunmei 2; Zhang, Xiaoping 3; Liu, Baoyuan 1,3; Wei, Xin 1; Pang, Guowei 2; Du, Chaozhen 2; Yang, Lihua 3
刊名	INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
	2020-12-01
卷号	8 期号:4 页码:440-451
关键词	Pan -third pole area Land use Soil conservation measures Remote sensing Variable probability sampling
ISSN号	2095-6339
DOI	10.1016/j.iswcr.2020.07.005
通讯作者	Yang, Qinke(qkyang@nwu.edu.cn)
英文摘要	Soil erosion is one of the most severe global environmental problems, and soil erosion surveys are the scientific basis for planning soil conservation and ecological development. To improve soil erosion sampling survey methods and accurately and rapidly estimate the actual rates of soil erosion, a Pan-Third Pole region was taken as an example to study a methodology of soil erosion sampling survey based on high-spatial-resolution remote sensing images. The sampling units were designed using a stratified variable probability systematic sampling method. The spatiotemporal characteristics of soil erosion and conservation were taken into account, and finer-resolution freely available and accessible images in Google Earth were used. Through the visual interpretation of the free high-resolution remote sensing images, detailed information on land use and soil conservation measures was obtained. Then, combined with the regional soil erosion factor data products, such as rainfall-runoff erosivity factor (R), soil erodibility factor (K), and slope length and steepness factor (LS), the soil loss rates of some sampling units were calculated. The results show that, based on these high-resolution remote sensing images, the land use and soil conservation measures of the sampling units can be quickly and accurately extracted. The interpretation accuracy in 4 typical cross sections was more than 80%, and sampling accuracy, described by histogram similarity in 11 large sampling sites, show that the landuse of sampling uints can represent the structural characteristics of regional land use. Based on the interpretation of data from the sample survey and the regional soil erosion factor data products, the calculation of the soil erosion rate can be completed quickly. The calculation results can reflect the actual conditions of soil erosion better than the potential soil erosion rates calculated by using the coarse-resolution remote sensing method. (C) 2020 International Research and Training Center on Erosion and Sedimentation and China Water and Power Press. Production and Hosting by Elsevier B.V.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA20040202]
WOS关键词	WATER EROSION ; SCIENCE
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
语种	英语
出版者	KEAI PUBLISHING LTD
WOS记录号	WOS:000597782800012
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137159]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Qinke
作者单位	1.Beijing Normal Univ, Coll Geog, Beijing 100875, Peoples R China 2.Northwest Univ, Coll Urban & Environm, Xian 710126, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yang, Qinke,Zhu, Mengyang,Wang, Chunmei,et al. Study on a soil erosion sampling survey in the Pan-Third Pole region based on higher-resolution images[J]. INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,2020,8(4):440-451.
APA	Yang, Qinke.,Zhu, Mengyang.,Wang, Chunmei.,Zhang, Xiaoping.,Liu, Baoyuan.,...&Yang, Lihua.(2020).Study on a soil erosion sampling survey in the Pan-Third Pole region based on higher-resolution images.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,8(4),440-451.
MLA	Yang, Qinke,et al."Study on a soil erosion sampling survey in the Pan-Third Pole region based on higher-resolution images".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 8.4(2020):440-451.