湖南省生猪规模养殖环境效率及其比较分析——基于SE-SBM模型及2004—2014年的数据

发布时间：2018-04-22 20:45

本文选题：生猪规模养殖 + 环境效率　；参考：《湖南农业大学学报(社会科学版)》2017年01期

【摘要】：将养殖排放的COD、TN、TP污染因子作为非期望产出,构建生猪养殖业环境效率评价指标体系,利用全国及湖南生猪养殖的成本收益资料和排污系数普查数据,采用基于非期望产出的非径向、非角度SE-SBM模型,对2004-2014年湖南和全国大中小三类规模养殖的环境效率进行比较,结果表明:湖南大、中、小规模生猪养殖的环境效率总体上高于全国平均水平,但仍存在投入冗余和产出不足问题,尤其是精饲料、仔猪、医疗防疫费这3项投入冗余严重,化学需氧量排放、总氮排放量2项严重削减不足,均大幅度高出全国平均水平。这应成为湖南生猪规模养殖及环境效率改进的重要方向。其关键着力点是创新"两型"养殖技术与管理、扎实推进粪污资源化、能源化工程。
[Abstract]:Taking the pollution factor of CODN TNTP from aquaculture as the non-expected output, the evaluation index system of the environmental efficiency of pig breeding was constructed, and the cost benefit data of national and Hunan pig breeding and the general data of discharge coefficient were used. Using the non-radial and non-angle SE-SBM model based on non-expected output, this paper compares the environmental efficiency of three types of scale aquaculture in Hunan and China from 2004 to 2014. The results show that Hunan is large, medium and large. Generally speaking, the environmental efficiency of small-scale live pig breeding is higher than the national average, but there are still problems of input redundancy and insufficient output. Especially, the three items of input redundancy, such as concentrate feed, piglets, and medical prevention expenses, are seriously redundant, and chemical oxygen demand (COD) is discharged. Total nitrogen emissions two serious cuts are insufficient, greatly higher than the national average. This should be an important direction for Hunan pig scale breeding and environmental efficiency improvement. The key point is to innovate the technology and management of "two types" culture, and to promote the utilization of manure and energy engineering in a down-to-earth way.
【作者单位】：湖南农业大学商学院;湖南农业大学理学院;
【基金】：湖南省自然科学基金(2016JJ4041) 湖南省涉农企业发展研究中心项目(920390100027) 湖南农业大学人才基金项目(15RCPT03)
【分类号】：F326.3

【相似文献】