IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.8
Influencing factors of sediment deposition and their spatial variability in riparian zone of the Three Gorges Reservoir, China
Wang Bin-yan1,2; Yan Dong-chun1; Wen An-bang1; Chen Jia-cun1,2
Corresponding AuthorYAN Dong-chun
2016
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume13Issue:8Pages:1387-1396
SubtypeArticle
AbstractMany factors can affect the sediment deposition and soil erosion process in riparian zone, including terrain, sediment transport and water level fluctuations. Clarifying the factors influencing sediment deposition process in the riparian zone of the Three Gorges Reservoirs is an important problem to determine the key area of sediment deposition and its trend of development in the study area. In order to reveal the influence of these environmental factors on the sediment deposition in riparian zone of the Three Gorges Reservoir, this study investigated 1) the amount of deposited sediment in different environmental conditions, 2) the potential factors affecting sediment deposition in riparian zone of the Three Gorges Reservoir, 3) the relationship between the deposited sediment amount and these factors previously mentioned using correlation analysis, and 4) the influence of human activities considered as an additional factor. This study found that 1) slope gradient, elevation, inundating duration and human activities were the main factors influencing sedimentation in riparian zone of the Three Gorges Reservoir, and 2) the impact of each factor varied with spaces. Specifically, in the upper reach from Jiangjin to Fuling, human activities such as gravel dredging, bank revetment and ports and wharfs constructing disturbed considerable amounts of deposited sediment, as a result, there was no natural law to dictate the distribution. In the middle reach from Fuling to Fengjie, slope gradient and inundating duration were the controlling factors, and the sediment deposition amount was greater in the areas with a gentler slope or lower elevation. Water flow on gentler slopes generally had lower velocity, resulting in more sediment to deposit. Sites with lower elevations would be drowned by sediment-laden flow with a longer duration resulting from hydrologic regime controlled by the operating strategy of the Three Gorges Reservoir, leading to a larger amount of sediment deposition. In the lower reach from Fengjie to Zigui, slope gradient was similar to the middle reach, performing a primary factor, while other factors showed little relationship with sediment amount.
KeywordInfluencing Factors Spatial Variability Sediment Deposition Riparian Zone Three Gorges Reservoir
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-015-3806-1
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordVEGETATION ; RIVER ; ROUGHNESS ; AREA ; UK
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000380234600005
Funding OrganizationChinese Academy of Sciences(KFJ-EW-STS-008 ; KFJ-SW-STS-175)
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17440
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.8
山地表生过程与生态调控重点实验室
科技与合作处
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, 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
Wang Bin-yan,Yan Dong-chun,Wen An-bang,et al. Influencing factors of sediment deposition and their spatial variability in riparian zone of the Three Gorges Reservoir, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(8):1387-1396.
APA Wang Bin-yan,Yan Dong-chun,Wen An-bang,&Chen Jia-cun.(2016).Influencing factors of sediment deposition and their spatial variability in riparian zone of the Three Gorges Reservoir, China.JOURNAL OF MOUNTAIN SCIENCE,13(8),1387-1396.
MLA Wang Bin-yan,et al."Influencing factors of sediment deposition and their spatial variability in riparian zone of the Three Gorges Reservoir, China".JOURNAL OF MOUNTAIN SCIENCE 13.8(2016):1387-1396.
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