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Impact of LUCC on streamflow based on the SWAT model over the Wei River basin on the Loess Plateau in China
Wang, Hong1; Sun, Fubao1,2,3,5; Xia, Jun4,5; Liu, Wenbin1
2017-04-06
Source PublicationHYDROLOGY AND EARTH SYSTEM SCIENCES
ISSN1027-5606
Volume21Issue:4Pages:1929-1945
Corresponding AuthorSun, Fubao(sunfb@igsnrr.ac.cn)
AbstractUnder the Grain for Green Project in China, vegetation recovery construction has been widely implemented on the Loess Plateau for the purpose of soil and water conservation. Now it is becoming controversial whether the recovery construction involving vegetation, particularly forest, is reducing the streamflow in the rivers of the Yellow River basin. In this study, we chose the Wei River, the largest branch of the Yellow River, with revegetated construction area as the study area. To do that, we apply the widely used Soil andWater Assessment Tool (SWAT) model for the upper and middle reaches of the Wei River basin. The SWAT model was forced with daily observed meteorological forcings (1960-2009) calibrated against daily streamflow for 1960-1969, validated for the period of 1970-1979, and used for analysis for 1980-2009. To investigate the impact of LUCC (land use and land cover change) on the streamflow, we firstly use two observed land use maps from 1980 and 2005 that are based on national land survey statistics merged with satellite observations. We found that the mean streamflow generated by using the 2005 land use map decreased in comparison with that using the 1980 one, with the same meteorological forcings. Of particular interest here is that the streamflow decreased on agricultural land but increased in forest areas. More specifically, the surface runoff, soil flow, and baseflow all decreased on agricultural land, while the soil flow and baseflow of forest areas increased. To investigate that, we then designed five scenarios: (S1) the present land use (1980) and (S2) 10 %, (S3) 20 %, (S4) 40 %, and (S5) 100% of agricultural land that was converted into mixed forest. We found that the streamflow consistently increased with agricultural land converted into forest by about 7.4mm per 10 %. Our modeling results suggest that forest recovery construction has a positive impact on both soil flow and baseflow by compensating for reduced surface runoff, which leads to a slight increase in the streamflow in the Wei River with the mixed landscapes on the Loess Plateau that include earth-rock mountain area.
DOI10.5194/hess-21-1929-2017
WOS KeywordDRIED SOIL LAYERS ; LAND-USE ; FUTURE CHANGES ; WATER YIELD ; CLIMATE ; AFFORESTATION ; CATCHMENT ; RUNOFF ; COVER ; PRECIPITATION
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFA0602402] ; National Key Research and Development Program of China[2016YFC0401401] ; State Key Laboratory of Desert and Oasis Ecology, Xinjiang, Institute of Ecology and Geography, Chinese Academy of Sciences ; CPSF-CAS Joint Foundation ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; influence mechanism and coping strategy of the controlling reservoirs on the hydrological and ecological pattern in the middle and lower reaches of Yangtze River ; International Science and Technology Cooperation Program of China[2014DFA71910] ; Natural Science Foundation of China[41571028] ; Natural Science Foundation of China[41601035] ; Natural Science Foundation of China[41401037]
Funding OrganizationNational Key Research and Development Program of China ; State Key Laboratory of Desert and Oasis Ecology, Xinjiang, Institute of Ecology and Geography, Chinese Academy of Sciences ; CPSF-CAS Joint Foundation ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; influence mechanism and coping strategy of the controlling reservoirs on the hydrological and ecological pattern in the middle and lower reaches of Yangtze River ; International Science and Technology Cooperation Program of China ; Natural Science Foundation of China
WOS Research AreaGeology ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000399311100001
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64592
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSun, Fubao
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Hexi Univ, Res Sch Qilian Mt Ecol, Zhangye 734000, Gansu, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
4.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China
5.Chinese Acad Sci, Ctr Water Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hong,Sun, Fubao,Xia, Jun,et al. Impact of LUCC on streamflow based on the SWAT model over the Wei River basin on the Loess Plateau in China[J]. HYDROLOGY AND EARTH SYSTEM SCIENCES,2017,21(4):1929-1945.
APA Wang, Hong,Sun, Fubao,Xia, Jun,&Liu, Wenbin.(2017).Impact of LUCC on streamflow based on the SWAT model over the Wei River basin on the Loess Plateau in China.HYDROLOGY AND EARTH SYSTEM SCIENCES,21(4),1929-1945.
MLA Wang, Hong,et al."Impact of LUCC on streamflow based on the SWAT model over the Wei River basin on the Loess Plateau in China".HYDROLOGY AND EARTH SYSTEM SCIENCES 21.4(2017):1929-1945.
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