Morphology and controlling factors of the longitudinal profile of gullies in the Yuanmou dry-hot valley

doi:10.1007/s11629-016-4189-7

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.4

	Morphology and controlling factors of the longitudinal profile of gullies in the Yuanmou dry-hot valley
	Ding Lin 1; Qin Fa-chao 1; Fang Hai-dong 2; Liu Hui 1; Zhang Bin 1; Shu Cheng-qiang 1; Deng Qing-chun 1; Liu Gang-cai3 ; Yang Qian-qian 1
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2017-04-01
卷号	14 期号:4 页码:674-693
关键词	Gully Longitudinal Profile Morphological Characteristics Soil Erosion Gully Erosion Controlling Factors Dry-hot Valley
ISSN号	1672-6316
DOI	10.1007/s11629-016-4189-7
通讯作者	ZHANG Bin
文献子类	Article
英文摘要	The morphology of the gully longitudinal profile (GLP) is an important topographic index of the gully bottom associated with the evolution of the gullies. This index can be used to predict the development trend and evaluate the eroded volumes and soil losses by gullying. To depict the morphology of GLP and understand its controlling factors, the Global Positioning System Real-time Kinematic (GPS RTK) and the total station were used to measure the detail points along the gully bottom of 122 gullies at six sites of the Yuanmou dry-hot Valley. Then, nine parameters including length (Lt), horizontal distance (Dh), height (H), vertical erosional area (A), vertical curvature (Cv), concavity (Ca), average gradient (Ga), gully length-gradient index (GL), normalized gully length-gradient index (Ngl), were calculated and mapped using CASS, Excel and SPSS. The results showed that this study area is dominated by slightly concave and medium gradient GLPs, and the lithology of most gullies is sandstone and siltstone. Although different types of GLPs appear at different sites, all parameters present a positively skewed distribution. There are relatively strong correlations between several parameters: namely Lt and H, Dh and H, Lt and A, Dh and A, H and GL. Most GLPs, except three, have a best fit of exponential functions with quasistraight shapes. Soil properties, vegetation coverage, piping erosion and topography are important factors to affect the GLP morphology. This study provides useful insight into the knowledge of GLP morphology and its influential factors that are of critical importance to prevent and control gully erosion.
WOS关键词	RIVER PROFILES ; ACTIVE TECTONICS ; INCISION MODELS ; LONG PROFILES ; STREAM POWER ; DEBRIS FLOW ; SEDIMENT ; CONCAVITY ; NORTHERN ; EROSION
语种	英语
WOS记录号	WOS:000399086200006
资助机构	National Natural Science Foundation of China(41471232) ; Fundamental Research Funds of China West Normal University(16A001) ; Ecological Security Key Laboratory of Sichuan Province(ESP201301)
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18550]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.4 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	1.China West Normal Univ, Sch Land & Resources, Nanchong 637009, Peoples R China 2.Yunnan Acad Agr Sci, Trop Ecoagr Inst, Yuanmou 651300, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Ding Lin,Qin Fa-chao,Fang Hai-dong,et al. Morphology and controlling factors of the longitudinal profile of gullies in the Yuanmou dry-hot valley[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(4):674-693.
APA	Ding Lin.,Qin Fa-chao.,Fang Hai-dong.,Liu Hui.,Zhang Bin.,...&Yang Qian-qian.(2017).Morphology and controlling factors of the longitudinal profile of gullies in the Yuanmou dry-hot valley.JOURNAL OF MOUNTAIN SCIENCE,14(4),674-693.
MLA	Ding Lin,et al."Morphology and controlling factors of the longitudinal profile of gullies in the Yuanmou dry-hot valley".JOURNAL OF MOUNTAIN SCIENCE 14.4(2017):674-693.