畜禽粪污无害化高值利用的效率评价研究——基于DEA模型和SFA模型

An Efficiency Appraial Analysis of High-value Use of Innocent Treatment of Livestock Manure——Based on the DEA Model and SFA Model

运用DEA模型实证分析了四川省12个规模畜禽养殖场粪污无害化高值利用的综合效率、纯技术效率和规模效率,研究发现基于规模报酬不变的DEA实证分析有5个DMU“技术无效”,且各DMU投入调整方向存在明显差异;基于可变规模报酬的DEA实证分析则只有1个DMU“技术无效”,综合技术效率均值为0.747,纯技术效率均值为0.942,规模效率均值为0.785,超过20%的资源投入未发挥效益。而SFA模型实证分析表明养殖场畜禽粪污无害化高值利用的技术效率均值只有0.334,为提升粪污产品产值,应当提高清粪人工、垫料和固体堆肥场所建设投入,同时削减设备运行费用。最后从人才培育、财政金融支持政策、产业化发展方面提出了对策建议。

This paper analyzes the overall efficiency,pure technical efficiency and scale efficiency of high-value use of innocent treatment of livestock manure in 12 large-scale in Sichuan Province by DEA model.The evidence-based analysis of DEA model which is based on constant returns to scale found that there are five DMUs which are“technical inefficiencies”,and there are obvious differences in the adjustive direction among each DMU investment.There is only one DMU which is“technical inefficiencies”in the evidence-based analysis of DEA model which is based on variable returns to scale,and the average value of overall technical efficiency is 0.747,the average value of pure technical efficiency is 0.942.The average value of scale efficiency is 0.785,which means more than 20% of resource investment has not brought benefits into play.However,the evidence-analysis of SFA model shows that the average technical efficiency of high-value use of innocent treat of livestock manure is only 0.334.In order to improve the output value of livestock manure products,we should increase the construction investment of the cost of excrement cleaning and labor,cushioning material and solid composting sites.Meanwhile,we should reduce the cost of equipment operation.Finally,this paper puts forward countermeasures and suggestions from the aspects of talent cultivation,financial support policies and industrialization development.