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| The effect of rice irrigation efficiency and related factors on fertilizer non-point source pollution based on quantile regression |
| Received:April 20, 2017 |
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| KeyWord:fertilizer non-point source pollution;irrigation water efficiency;production mode;factor endowments;quantile regression |
| Author Name | Affiliation | E-mail | | YU Wei-yong | College of Economics, Sichuan Agricultural University, Chengdu 611130, China | | | QI Yan-bin | College of Economics, Sichuan Agricultural University, Chengdu 611130, China | qybin@sina.com | | HE Yue | College of Economics, Sichuan Agricultural University, Chengdu 611130, China
Institute of Finance and Economics, Yangtze Normal University, Chongqing Fuling 408000, China | | | DENG Xin | College of Management, Sichuan Agricultural University, Chengdu 611130, China | |
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| Abstract: |
| This article measures rice irrigation water-use efficiency and fertilizer non-point source pollution of 797 households across four provinces (municipalities) in the upper reaches of Yangtze river.It analyzed the effect of rice irrigation water-use efficiency,mode of production,and effects of other factors on fertilizer non-point source pollution based on quantile regression.The results show that the average irrigation efficiency of rice is 0.14,the average scale efficiency is 0.55,the average technical efficiency is 0.27,and the rice irrigation water efficiency improvement space is larger.A substitution effect between irrigation water-use efficiency and the amount of fertilizer applied exists,which enhances the amplitude of fluctuation.Water-saving irrigation methods can reduce fertilizer non-point source pollution and preserve fertilizers.Floods and droughts (FDD) rotation mode,farming methods,and straw counters-field ways have an effect on fertilizer non-point source pollution,although not all these effects were significant.Cultivated land and finely,agricultural subsidies and commercialization rate can increase non-point source fertilizer pollution.The critical point that age and education level reduced fertilizer non-poin source pollution is higher,but political participation has no significant effect. |
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