摘要
从灌区投入产出角度评价灌区现代化改造的有效性,为灌区现代化改造提供了理论指导。采用SE-DEA和Malmquist复合模型,选取基于灌区投入-产出的现代化改造有效性评价指标,分析18个大中型灌区现代化改造效率并进行改造有效性排序,测算灌区现代化改造前后的生产率变化情况。结果表明:18个灌区中11个灌区的现代化改造相对有效,且均为大型灌区,表明大型灌区现代化改造效率高于中型灌区;18个灌区的平均TFP指数为1.057,现代化改造使得灌区的全要素生产率提升了5.7%。利用SE-DEA和Malmquist复合模型对灌区现代化改造有效性进行评价是可行的,计算结果表明大中型灌区现代化改造整体上合理有效,可以通过优化调整灌区用水总量和有效灌溉面积、提高资源配置效率与利用效率,进而提升灌区现代化改造的有效性。
This paper evaluates the relative effectiveness of the modernization of the irrigation districts from the perspective of input and output,which is to provide theoretical guideline for the modernization of the irrigation districts.Based on the selected input and output index which can represent the characterization of modernized irrigation districts,the author used SE-DEA and Malmquist composite model to analyze the efficiency of modernization reconstruction of 18 large and medium-scale irrigation districts and sort the relative effectiveness.The author also calculated the changes in productivity before and after modernization of irrigation districts.The result showed that 11 irrigation districts which were all large irrigation districts were DEA effective in all 18 irrigation districts,the modernization reconstruction efficiency of large irrigation districts is higher than that of medium-scale irrigation districts.The average value of the Total Factor Producivity(TFP)of the districts is 1.057,the TFP index had increased by 5.7%because of the modernation measures.Therefore,it is feasible to evaluate the modernization effectiveness of irrigation districts by using the SE-Malmquist composite model and the current measures for modernized irrigation district are reasonable and effective.By optimizing and adjusting the total water consumption and the effective irrigation area of the irrigation district,the efficiency of resource allocation and utilization can be improved,and the modernization of the irrigation district can be more effective.
作者
张玮婷
杨路华
赵玉琪
李丽
Zhang Weiting;Yang Luhua;Zhao Yuqi;Li Li(Collage of Water Conservancy Engineering,Tianjin Agricultural University,Tianjin 300392,China;Zhenning Buyi Miao Autonomous County Shuanglongshan Street Agricultural Service Center,Anshun 561200,Guizhou Province,China)
出处
《天津农学院学报》
CAS
2023年第5期54-60,共7页
Journal of Tianjin Agricultural University
基金
国家自然科学基金项目(52179052)。
