摘要
首先运用SBM-Undesirable模型测算了2008年-2017年中国28个省份不同规模奶牛养殖场环境效率,并运用Tobit模型分析乳制品进口对不同规模奶牛养殖环境效率的影响。结果表明大规模养殖场环境效率最高,中规模次之,小规模最低,不同规模的奶牛养殖场环境效率得到显著改善;奶牛养殖环境效率省际差异性明显,北京、天津、上海、黑龙江、甘肃、新疆不同规模奶牛养殖场环境效率均处在全国平均水平之上;乳制品进口增加从整体上有助于奶牛养殖环境效率提升,具体而言,乳制品增加对小规模、中规模和大规模奶牛养殖主体的环境效率产生不同程度的正向影响。
This article first uses the SBM-Undesirable model to measure the environmental efficiency of dairy farms of different sizes in 28 provinces in China from 2008 to 2017,and uses the Tobit model to analyze the impact of dairy product imports on the environmental efficiency of dairy farms of different sizes.The results of the study show that the environmental efficiency of large-scale farms is the highest,followed by medium-sized farms,and the lowest in small-scale farms.The environmental efficiency of dairy farms of different sizes has been significantly improved;the environmental efficiency of dairy farming farms differs significantly between provinces.The environmental efficiency of dairy farms of different sizes in Beijing,Tianjing,Shanghai,Heilongjiang,Gansu,and Xinjiang is above the national average;the increase in dairy product imports will generally help improve the environmental efficiency of dairy farming.Specifically,the increase in dairy products will affect small-scale,medium-scale and The environmental efficiency of the main body of large-scale dairy farming has positive effects to varying degrees.
作者
宋鹏志
李翠霞
SONG Pengzhi;LI Cuixia(College of Economics and Management,Northeast Agricultural University,Harbin 150030,China;Heilongjiang Green Food Science Research Institute,Harbin 150028,China)
出处
《中国乳品工业》
CAS
北大核心
2020年第11期45-49,共5页
China Dairy Industry
基金
国家自然基金项目(71673042)。
关键词
乳制品进口
奶牛养殖
环境效率
影响因素
Dairy product import
Dairy farming
Environmental efficiency
Influencing factors
