IGSNRR OpenIR
Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China
Tan, Minghong1,2
2019
Source PublicationIRRIGATION SCIENCE
ISSN0342-7188
Volume37Issue:1Pages:95-103
Corresponding AuthorTan, Minghong(tanmh@igsnrr.ac.cn)
AbstractHeihe Inland River Basin is the second largest in China. Water use for agriculture in the middle section of the basin accounts for over 90% of total usage; this leads to lake shrinkage, river blanking, and desertification of the downstream basin. Crop water requirements within the Ganzhou district of the Heihe River Basin in Northwestern China were modeled using a parameter calibration of the CROPWAT model, based on household survey data on crop coefficients and water usage, taking into account effective precipitation. The results show that modeled evapotranspiration for seed maize was consistent with evapotranspiration determined from observed data based on eddy covariance, as adjusted R-2 values approached 0.73 (P < 0.001). Vast differences were observed between actual irrigation and water requirements across the study area. Excessive water was used for irrigation, particularly in the case of maize, where mismatches in dates were widespread between actual irrigation and water requirements. Thus, to save water and increase yield, a set schedule for irrigation was recommended.
DOI10.1007/s00271-018-0608-6
WOS KeywordMIDDLE REACHES ; USE EFFICIENCY ; BOWEN-RATIO ; EVAPOTRANSPIRATION ; LAND ; PRODUCTIVITY ; SCARCITY ; BALANCE ; DEMAND ; WHEAT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of Chin[91325302] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20040400]
Funding OrganizationNational Natural Science Foundation of Chin ; Strategic Priority Research Program of Chinese Academy of Sciences
WOS Research AreaAgriculture ; Water Resources
WOS SubjectAgronomy ; Water Resources
WOS IDWOS:000454818800008
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/51282
Collection中国科学院地理科学与资源研究所
Corresponding AuthorTan, Minghong
Affiliation1.Chinese Acad Sci, IGSNRR, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Int Coll, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Tan, Minghong. Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China[J]. IRRIGATION SCIENCE,2019,37(1):95-103.
APA Tan, Minghong.(2019).Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China.IRRIGATION SCIENCE,37(1),95-103.
MLA Tan, Minghong."Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China".IRRIGATION SCIENCE 37.1(2019):95-103.
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