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- W2385550178 abstract "Based on the long time series data from Zhanghe Irrigation District,Hubei,China,this paper investigated the production function model and technical non-efficiency model of irrigation water use efficiency(IWUE) and irrigation water productivity(WP) besed on stochastic frontier analysis(SFA) methods.The estimated parameters and assumptions test result show that WP model has a stronger explaination than that of IWUE.As a whole,technical efficiency of IWUE is higher than that of WP;but technical efficiency of WP has a big increasing ratio than that of IWUE.The estimated parameters of the non-validity indicate that the rainfall has greatest influence on IWUE;and the second is ratio of adopting water-saving irrigation area;the third is ratio of rice cultivation and annual ET0.Rainfall in cropping season,ratio of adopting water-saving irrigation area and ratio of rice cultivation shown the significant pertinency with the technical efficiency of WP.Annual investment of rehabilitation reconstruction and ratio of canal linning have no significant influence on the technical efficiency of IWUE and WP because their data series is too short." @default.
- W2385550178 created "2016-06-24" @default.
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- W2385550178 date "2009-01-01" @default.
- W2385550178 modified "2023-09-24" @default.
- W2385550178 title "Temporal variation law of irrigation water use efficiency indicators based on stochastic frontier analysis" @default.
- W2385550178 hasPublicationYear "2009" @default.
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