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Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley
Feng, Yuxiang1; Mu, Hongli1,2; Qin, Fachao1; Deng, Qingchun1; Liu, Hui1; Zhang, Bin1; Luo, Mingliang1; Liu, Shoujiang1; Liu, Gangcai3
2017
Source PublicationPHYSICAL GEOGRAPHY
ISSN0272-3646
Volume38Issue:5Pages:448-469
SubtypeArticle
AbstractCharacterizing gully cross sections (GCs) is essential for calculating the volume and erosion rate of the gully. However, little research has focused on modeling the morphology of GCs. This study investigated 456 GCs with a laser distance meter located at the mouth, middle, and head of 152 gullies in the Yuanmou Dry-hot Valley of China; mapped them with AutoCAD software; fitted them with 2nd-6th degree polynomial functions, and discussed the correlation between the coefficients and the morphology of GCs. The results showed that: (1) using a 2nd-degree polynomial function (y=ax(2)+bx+c) to describe the morphology of GCs produced a better result than other polynomial functions; (2) the coefficient a of 2nd-degree polynomial function was correlated with depth (r=-0.226, p<0.01), gradient (r=0.545, p<0.01), and activities; and (3) the symmetry axis (-b/2a) of 2nd-degree polynomial function increased with gully change from left-deflection to right-skewed, and the absolute value showed the asymmetrical degree (r=0.216, p<0.01). This study will not only help to understand the morphology and evolution of gullies, but will also provide a scientific basis for prevention of gully erosion.
KeywordMorphological Characteristics Gully Cross-section Modeling Dry-hot Valley
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1080/02723646.2017.1306386
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Physical Geography ; Geology ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordRATIONAL EXPLANATION ; PROFILE DEVELOPMENT ; SUBMARINE GULLIES ; GLACIAL VALLEYS ; ANIYA 1988 ; EROSION ; HIRANO ; CHINA
Language英语
WOS SubjectEnvironmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000407552700004
Funding OrganizationEcological Security and Protection Key Laboratory of Sichuan Province(ESP201301) ; Fundamental Research Funds of China West Normal University(16A001) ; Sichuan Provincial Department of Education(16ZB0182 ; National Natural Science Foundation Committee of China(41471232) ; 17ZB0428)
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19030
Collection山地灾害与地表过程重点实验室
Corresponding AuthorZhang, Bin
Affiliation1.China West Normal Univ, Sch Land & Resources, Nanchong, Peoples R China
2.Beijing Normal Univ, Sch Geog, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Feng, Yuxiang,Mu, Hongli,Qin, Fachao,et al. Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley[J]. PHYSICAL GEOGRAPHY,2017,38(5):448-469.
APA Feng, Yuxiang.,Mu, Hongli.,Qin, Fachao.,Deng, Qingchun.,Liu, Hui.,...&Liu, Gangcai.(2017).Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley.PHYSICAL GEOGRAPHY,38(5),448-469.
MLA Feng, Yuxiang,et al."Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley".PHYSICAL GEOGRAPHY 38.5(2017):448-469.
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