IMHE OpenIR  > 山地灾害与地表过程重点实验室
Critical topographic threshold of gully erosion in Yuanmou Dry-hot Valley in Southwestern China
Dong, Yifan1,2; Xiong, Donghong1,2; Su, Zheng'an1,2; Li, Jiajia3; Yang, Dan1,2; Zhai, Juan3; Lu, Xiaoning3; Liu, Gangcai1,2; Shi, Liangtao4
Corresponding Author熊东红
2013
Source PublicationPHYSICAL GEOGRAPHY
ISSN0272-3646
EISSN1930-0557
Volume34Issue:1Pages:50-59
SubtypeArticle
AbstractGully initiation has been a subject of much discussion in the field of gully erosion. Gully initiation could be examined by the S-Delta relationship (S = alpha Lambda(-b)) between the critical slope of the gully head (S) and the upstream drainage area (A). Gully erosion plays an important role in sediment yield and land degradation in the Dry-hot Valley region of Southwest China; however, little research has focused on gully development in this region. This study investigated gully morphology and the critical topographic threshold of permanent gullies in Yuanmou Dry-hot Valley. Data for 36 gully heads were derived from the gully digital elevation model created by high-precision real-time kinematic GPS (RTK GPS). A significant relationship between gully length and volume (r(2) = 0.77, p < 0.01) was found to exist, indicating that gully length can be used to estimate the gully erosion rate. Additionally, as vegetation coverage inside the gully increases, the gully morphology tends to be stable. The S-A relationship was S = 0.5195A(-0.0899), while AS(2) values ranged between 4.2 and 758.5 m(2). The low value of constant b (0.0899) indicates that collapse of the gully wall is the dominant process of gully erosion in Yuanmou Dry-hot Valley.
KeywordGully Gully Initiation Morphological Parameter Yuanmou Dry-hot Valley Critical Threshold
Subject Area自然地理学 ; 土壤学
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1080/02723646.2013.778691
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Physical Geography ; Geology ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordBLACK SOIL REGION ; LOESS PLATEAU ; NORTHEASTERN CHINA ; PREDICTION ; INITIATION ; CATCHMENT ; MODEL ; ENVIRONMENT ; CHANNEL ; CRACKS
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000319565000004
Funding OrganizationYouth Talent Team Program of IMHE, Chinese Academy of Sciences(SDSQB-2011-01) ; National Natural Science Foundation of China(41201009) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KZCXZ-EW-QN317) ; foundation of Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6650
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Chengdu Univ Informat Technol, Dept Environm Engn, Chengdu 610225, Peoples R China
4.Yunnan Acad Agr Sci, Inst Trop Ecoagr Sci, Yuanmou 651300, Yunnan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Dong, Yifan,Xiong, Donghong,Su, Zheng'an,et al. Critical topographic threshold of gully erosion in Yuanmou Dry-hot Valley in Southwestern China[J]. PHYSICAL GEOGRAPHY,2013,34(1):50-59.
APA Dong, Yifan.,Xiong, Donghong.,Su, Zheng'an.,Li, Jiajia.,Yang, Dan.,...&Shi, Liangtao.(2013).Critical topographic threshold of gully erosion in Yuanmou Dry-hot Valley in Southwestern China.PHYSICAL GEOGRAPHY,34(1),50-59.
MLA Dong, Yifan,et al."Critical topographic threshold of gully erosion in Yuanmou Dry-hot Valley in Southwestern China".PHYSICAL GEOGRAPHY 34.1(2013):50-59.
Files in This Item:
File Name/Size DocType Version Access License
Yifan Dong, Critical(338KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Dong, Yifan]'s Articles
[Xiong, Donghong]'s Articles
[Su, Zheng'an]'s Articles
Baidu academic
Similar articles in Baidu academic
[Dong, Yifan]'s Articles
[Xiong, Donghong]'s Articles
[Su, Zheng'an]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Dong, Yifan]'s Articles
[Xiong, Donghong]'s Articles
[Su, Zheng'an]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Yifan Dong, Critical topographic threshold, Physical geography.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.