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Comparative investigation on the decreased runoff between the water source and destination regions in the middle route of China's South-to-North Water Diversion Project
Liang, Kang
2018-02-01
Source PublicationSTOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
ISSN1436-3240
Volume32Issue:2Pages:369-384
Corresponding AuthorLiang, Kang(liangk@igsnrr.ac.cn)
AbstractInvestigation on decreased runoff and driving forces in the water source and water destination catchments is vital to the water resources protection and water supply security assurance. Danjiangkou Reservoir Basin (DRB) and Miyun Reservoir Basin (MRB) are the water source and water destination regions for the middle route of South-to-North Water Diversion Project (MSNWDP) in China. Variations in runoff and driving forces behind these variations during 1960-2005 in the DRB and the MRB were comparatively analyzed and investigated by the climate elasticity method based on the Budyko hypothesis. The results showed that the runoff change process was diagnosed as the same three sub-periods (1960-1979, 1980-1989, and 1990-2005) by the cumulative anomaly analysis. The variations in the runoff exhibited large fluctuations with an overall decreasing trend of -2.5 mm/year in the DRB and -1.1 mm/year in the MRB. The variations in average annual runoff among the three sub-periods had significant differences in magnitude and direction. The runoff in the DRB increased by 81.6 mm during 1980-1989, and decreased by 67.1 mm during 1990-2005. However, the decreased runoff in the MRB during 1980-1989 and 1990-2005 were 37.3 and 31.7 mm, respectively. The specific spatio-temporal differences of climate factors (precipitation and potential evapotranspiration) and catchment characteristics jointly resulted in the differences of the runoff change. The climate elasticity method revealed that the leading factors to runoff changes in the three sub-periods had significant differences. The climate factors were the leading factors before 1990, however, the human activities became more intensive to be the leading factors after 1999. The relative contributions of climate factors and catchment characteristics to runoff change varied from (88.5%, 8.2%) during 1980-1989 to (30.9%, 73.9%) during 1990-2005 in the DRB. However, in the MRB, the relative contributions were from (51.0%, 48.2%) during 1980-1989 to (-8.0%, 110.0%) during 1990-2005. An effective way to reduce risk is to take the dynamic or elastic water resources management and the differentiated protection measures. In addition, green water management, the water demand management and saving water both in the water source regions and in the water destination regions of the MSNWDP are recommended and persistently advocated to reduce water consumption.
KeywordDecreased runoff Climate elasticity Budyko hypothesis Danjiangkou Reservoir Miyun Reservoir South-to-North Water Diversion Project
DOI10.1007/s00477-017-1454-4
WOS KeywordCLIMATE-CHANGE ; STREAMFLOW DECREASE ; BUDYKO HYPOTHESIS ; ARIDITY INDEX ; YELLOW-RIVER ; LAND-USE ; VARIABILITY ; BASIN ; RESOURCES ; CATCHMENT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41501032] ; Chinese Academy of Sciences Supported Consulting and Appraising Project Water Security Assurance Strategy and Countermeasures of China
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences Supported Consulting and Appraising Project Water Security Assurance Strategy and Countermeasures of China
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences ; Statistics & Probability ; Water Resources
WOS IDWOS:000425109900005
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57065
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiang, Kang
AffiliationChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proces, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Liang, Kang. Comparative investigation on the decreased runoff between the water source and destination regions in the middle route of China's South-to-North Water Diversion Project[J]. STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,2018,32(2):369-384.
APA Liang, Kang.(2018).Comparative investigation on the decreased runoff between the water source and destination regions in the middle route of China's South-to-North Water Diversion Project.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,32(2),369-384.
MLA Liang, Kang."Comparative investigation on the decreased runoff between the water source and destination regions in the middle route of China's South-to-North Water Diversion Project".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT 32.2(2018):369-384.
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