农业环境科学学报2017，Vol.36Issue(7)：1274-1284,11.DOI:10.11654/jaes.2017-0586
水稻灌溉用水效率和要素禀赋对化肥面源污染的影响——基于分位数回归的分析
The effect of rice irrigation efficiency and related factors on fertilizer non-point source pollution based on quantile regression
摘要
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 pro-duction, 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 ex-ists, 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 commercial-ization rate can increase non-point source fertilizer pollution. The critical point that age and education level reduced fertilizer non-point source pollution is higher, but political participation has no significant effect.关键词
化肥面源污染/灌溉用水效率/生产方式/要素禀赋/分位数回归Key words
fertilizer non-point source pollution/irrigation water efficiency/production mode/factor endowments/quantile regression分类
资源环境引用本文复制引用
于伟咏,漆雁斌,何悦,邓鑫..水稻灌溉用水效率和要素禀赋对化肥面源污染的影响——基于分位数回归的分析[J].农业环境科学学报,2017,36(7):1274-1284,11.基金项目
国家社会科学基金项目(14XGL003) （14XGL003）
四川省农村发展研究中心青年项目(CR1624,CR1719) The National Social Science Foundation of China (14XGL003) （CR1624,CR1719）
The Young Fund of the Sichuan Rural Development Research Center (CR1624,CR1719) （CR1624,CR1719）
