IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.2
Modelling the effects of land-use change on runoff and sediment yield in the Weicheng River watershed, Southwest China
Zhang Xiao-ke1,2; Fan Ji-hui1; Cheng Gen-wei1
Corresponding AuthorFAN Ji-hui
2015
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume12Issue:2Pages:434-445
SubtypeArticle
AbstractAs a major sediment area in the upper Yangtze River, Jialing River basin experienced substantial land-use changes, many water conservancy projects were constructed from the 1980s onward to promote water and soil conservation. The water and sediment yield at the watershed outlet was strongly affected by these water conservation works, including ponds and reservoirs, which should be considered in the modelling. In this study, based on the observed data of the Weicheng River catchment, the relationships between precipitation, runoff, vegetation, topography and sediment yield were analyzed, a distributed runoff and sediment yield model (WSTD-SED) was developed, and the hydrological processes of different land-use scenarios were simulated by using the model. The main results are summarized as follows: 1) there is an alternating characteristic in river channels and reservoirs in the Jialing River hilly area, with scour occurring in wet years and deposit occurring in dry years. 2) Most of the sediment deposited in river channels and reservoirs is carried off by the largest flood in the year. 3) The model yielded plausible results for runoff and sediment yield dynamics without the need of calibration, and the WSTD-SED model could be used to obtain qualitative estimates on the effects of land use change scenarios. 4) The modelling results suggest that a 10% increase in cropland (dry land) reforestation results in a 0.7% decrease in runoff and 1.5% decrease in sediment yield.
KeywordLand-use Change Hydrological Modelling Reforestation Scenario Runoff And Sediment Yield
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-013-2762-x
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordXINANJIANG MODEL ; YANGTZE-RIVER ; SOURCE POLLUTION ; SOIL-EROSION ; BASIN ; IMPACTS ; VARIABILITY ; SIMULATION ; CLIMATE ; SCALE
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000351664200014
Funding OrganizationMinistry of Water Resources special funds for scientific research(20131037) ; National Natural Science Foundation of China(41001018) ; One Hundred Young Persons Project of Institute of Mountain Hazards and Environment(SDSQB-2010-02)
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7979
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.2
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolut & Regulat, 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
Zhang Xiao-ke,Fan Ji-hui,Cheng Gen-wei. Modelling the effects of land-use change on runoff and sediment yield in the Weicheng River watershed, Southwest China[J]. JOURNAL OF MOUNTAIN SCIENCE,2015,12(2):434-445.
APA Zhang Xiao-ke,Fan Ji-hui,&Cheng Gen-wei.(2015).Modelling the effects of land-use change on runoff and sediment yield in the Weicheng River watershed, Southwest China.JOURNAL OF MOUNTAIN SCIENCE,12(2),434-445.
MLA Zhang Xiao-ke,et al."Modelling the effects of land-use change on runoff and sediment yield in the Weicheng River watershed, Southwest China".JOURNAL OF MOUNTAIN SCIENCE 12.2(2015):434-445.
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