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Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique
Hongyan Wu1,2; Ximeng Xu1,2; Fenli Zheng1,2; Chao Qin1,2; Xu He1,2; Zheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationEARTH SURFACE PROCESSES AND LANDFORMS
ISSN0197-9337
description.correspondentemailflzh@ms.iswc.ac.cn
Volume43Issue:8Pages:1701-1710
AbstractGully morphology characteristics can be used effectively to describe the status of gully development. The Chabagou watershed, located in the hilly-gully region of the Loess Plateau in China, was selected to investigate gully morphological characteristics using a 3D laser scanning technique (LIDAR). Thirty-one representative gullies located at different watershed locations and gully orders were chosen to quantitatively describe gully morphology and establish empirical equations for estimating gully volume based on gully length and gully surface area. Images and point cloud data for the 31 gullies were collected, and digital elevation models (DEMs) with 10-cm resolution were generated. ArcGIS 10.1 was then used to extract fundamental gully morphological parameters covering gully length (L), gully width (W-T) and gully depth (D), and some derivative morphological parameters, including gully head curvature (C), gully width-depth ratio (w/d), gully bottom-to-top width ratio (W-B/W-T), gully surface area (A(g)) and gully volume (V-g). The results indicated that gullies in the upper watershed and the second order were more developed based on their high values of gully head curvature. The potential for gully development increased from the second order to the fourth order. Within the same gully orders, gullies in the lower watershed were more active with more development potential. A method for differentiating between gully head and gully sidewalls based on the gully head curvature value was proposed with a mean relative error of 8.77%. U-shaped cross-sections were widely distributed in the upper watershed and upper positions of a gully, while V-shaped cross-sections were widely distributed in the lower watershed and lower positions of a gully. V-L and V-A(g) empirical equations with acceptable accuracy were established and can be used to estimate gully erosion in the Loess hilly-gully region. Copyright (c) 2017 John Wiley & Sons, Ltd.
KeywordEmpirical Equation Morphological Characteristics 3d Laser Scanning Technique Loess Hilly-gully Region
Subject AreaPhysical Geography ; Geology
DOI10.1002/esp.4332
Indexed BySCI
Publication Place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Language英语
WOS IDWOS:000435270900011
PublisherWILEY
Funding OrganizationNational Natural Science Foundation of China [41761144060] ; National Natural Science Foundation of China [41761144060] ; International Partnership Program of Chinese Academy of Science [161461KYSB20170013] ; International Partnership Program of Chinese Academy of Science [161461KYSB20170013] ; Opening Fund of MWR Key Laboratory of Soil and Water Loss Process and Control in the Loess Plateau [2017001] ; Opening Fund of MWR Key Laboratory of Soil and Water Loss Process and Control in the Loess Plateau [2017001] ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-2] ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-2]
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8227
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorZheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Yangling 712100, Shaanxi, Peoples R China
3.Inst Soil & Water Conservat, MWR, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Hongyan Wu,Ximeng Xu,Fenli Zheng,et al. Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique[J]. EARTH SURFACE PROCESSES AND LANDFORMS,2018,43(8):1701-1710.
APA Hongyan Wu,Ximeng Xu,Fenli Zheng,Chao Qin,Xu He,&Zheng, FL .(2018).Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique.EARTH SURFACE PROCESSES AND LANDFORMS,43(8),1701-1710.
MLA Hongyan Wu,et al."Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique".EARTH SURFACE PROCESSES AND LANDFORMS 43.8(2018):1701-1710.
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