| 摘要: |
| 针对种养结合生产方式能否有效促进肉羊养殖减排增效问题，采用Super-SBM模型和处理效应模型，就种养结合对肉羊养殖环境技术效率的影响及影响机制进行研究。结果表明：一方面，与非种养结合生产方式相比，种养结合生产方式能够提高肉羊养殖环境技术效率，且较高程度种养结合生产方式对养殖户肉羊养殖环境技术效率的提升作用更为有效；另一方面，种养结合生产方式通过降低饲草料投入、提升肉羊出栏活重和减少碳排放来提升肉羊养殖环境技术效率。针对上述结论，提出加强种养结合技术研发及推广，建立养殖法规政策的绿色导向机制、提高区域种养结合水平等政策建议。 |
| 关键词: 种养结合 环境技术效率 处理效应模型 面源污染 碳排放 |
| DOI：10.11841/j.issn.1007-4333.2024.02.18 |
| 投稿时间：2023-05-08 |
| 基金项目:农业农村部和财政部项目（CARS-39-22） |
|
| Effect of combination of planting and breeding on the emission reduction and efficiency of mutton sheep breeding |
|
WANG Ruyu1,2, XIAO Haifeng1*
|
| (1.College of Economics and Management, China Agricultural University, Beijing 100083, China;2.Institute of Rural Economics and Regionalization, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China) |
| Abstract: |
| Aiming at whether the combined production mode of planting and breeding can effectively promote the emission reduction and efficiency of mutton sheep breeding， the Super-SBM model and treatment effect model are used to study the impact and influencing mechanism of planting and breeding combination on environmental technical efficiency of mutton sheep breeding. The results show that： On one hand， compared with non-combination of planting and breeding， the combination of planting and breeding can improve environmental technical efficiency of mutton sheep breeding. Compared with non-combination of planting and breeding mode， the higher degree of combination of planting and breeding mode is more effective in improving the environmental technical efficiency of mutton sheep breeding. On the other hand， the combination of planting and breeding can improve the environmental technical efficiency of mutton sheep breeding by reducing forage input， increasing live weight of mutton sheep and reducing carbon emissions. In conclusion， some policy suggestions， such as strengthening research and promotion of combination of planting and breeding technology， establishing the green oriented mechanism of aquaculture regulations and policies， and improving the level of regional cultivation， are put forward in this study. |
| Key words: combination of planting and breeding environmental technical efficiency treatment effect model non-point source pollution carbon emission |
