Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique

doi:10.1002/esp.4332

ISWC OpenIR > 水保所科研产出--SCI > 2018--SCI

	Gully morphological characteristics in the loess hilly-gully region based on 3D laser scanning technique
	Hongyan Wu 1,2; Ximeng Xu 1,2; Fenli Zheng 1,2; Chao Qin 1,2; Xu He 1,2; Zheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2018
发表期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
通讯作者邮箱	flzh@ms.iswc.ac.cn
卷号	43 期号:8 页码:1701-1710
摘要	Gully 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.
关键词	Empirical Equation Morphological Characteristics 3d Laser Scanning Technique Loess Hilly-gully Region
学科领域	Physical Geography ; Geology
DOI	10.1002/esp.4332
收录类别	SCI
出版地	111 RIVER ST, HOBOKEN 07030-5774, NJ USA
语种	英语
WOS记录号	WOS:000435270900011
出版者	WILEY
项目资助者	National 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]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8227
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Zheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.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
推荐引用方式 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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