IMHE OpenIR  > 山地表生过程与生态调控重点实验室
modellingtheeffectsoflandusechangeonrunoffandsedimentyieldintheweichengriverwatershedsouthwestchina
Zhang Xiaoke; Fan Jihui; Cheng Genwei
2015
Source Publicationjournalofmountainscience
ISSN1672-6316
Volume12Issue:2Pages:434
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.
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31631
Collection山地表生过程与生态调控重点实验室
Affiliation中国科学院成都山地灾害与环境研究所
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 Xiaoke,Fan Jihui,Cheng Genwei. modellingtheeffectsoflandusechangeonrunoffandsedimentyieldintheweichengriverwatershedsouthwestchina[J]. journalofmountainscience,2015,12(2):434.
APA Zhang Xiaoke,Fan Jihui,&Cheng Genwei.(2015).modellingtheeffectsoflandusechangeonrunoffandsedimentyieldintheweichengriverwatershedsouthwestchina.journalofmountainscience,12(2),434.
MLA Zhang Xiaoke,et al."modellingtheeffectsoflandusechangeonrunoffandsedimentyieldintheweichengriverwatershedsouthwestchina".journalofmountainscience 12.2(2015):434.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang Xiaoke]'s Articles
[Fan Jihui]'s Articles
[Cheng Genwei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang Xiaoke]'s Articles
[Fan Jihui]'s Articles
[Cheng Genwei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang Xiaoke]'s Articles
[Fan Jihui]'s Articles
[Cheng Genwei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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