三工河流域农户灌溉效率及影响因素

doi:10.11820/dlkxjz.2012.04.010

Abstract

Abstract: Through farmers' interviews and questionnaires, by using the DEA method, this paper evaluated farmers' irrigation efficiency in the Sangong River Basin from two aspects of the crop type and areal space. By employing the Tobit model, the paper explored the factors that affected farmers' irrigation efficiency and different factors that played a role in determining the irrigation efficiency. The results are shown as follows. (1) There are significant differences among different crop types in irrigation efficiency. And the average irrigation efficiency of six crop types is in the order of cotton (0.95) > grapes (0.89) > sunflower (0.88)> hit melon gourd (0.80) > corn (0.78) > wheat (0.72). (2) Irrigation efficiency is different in different regions. Average irrigation efficiency of the same crop type was significantly different in local and corp's; moreover, from lower to upper reaches, the irrigation efficiency was also significantly different, namely, corps' > local's; lower's > middle's > upper's. (3) Irrigation methods, crop type, per hm2 income, irrigation yield, price of water, irrigation management and technical training have significant impacts on the irrigation efficiency. Concrete details, irrigation yield and irrigation efficiency are negatively correlated; while irrigation methods, irrigation management, water price, technical training and per hm2 income are positively correlated with irrigation efficiency. In addition, in accordance with different crop types and regions, irrigation efficiency has a significant change. Finally, we put forward some suggestions to raise the irrigation efficiency.

Key words: factors, farmers, irrigation efficiency, Sangong river basin

CHEN Dabo, ZHANG Xinhuan, YANG Degang, XIAO Yanqiu, YANG Fan, XIAWenjin. A Study of Farmers'Irrigation Efficiency and InfluencingFactors in Sangong River Basin[J].PROGRESS IN GEOGRAPHY, 2012, 31(4): 468-475.

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A Study of Farmers'Irrigation Efficiency and InfluencingFactors in Sangong River Basin

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