产业集聚对奶牛养殖业绿色全要素生产率的影响研究

RESEARCH ON THE INFLUENCE OF INDUSTRIAL AGGLOMERATION ON GREEN TOTAL FACTOR PRODUCTIVITY IN DAIRY FARMING INDUSTRY

关键词:  奶牛养殖业  产业集聚  绿色全要素生产率  SBM模型  绿色发展

Key words:  dairy farming industry  industrial agglomeration  green total factor productivity  SBM model  green development

摘要:

目的 在资源与环境双重约束日益严峻的时代背景下，探究产业集聚对奶牛养殖业绿色全要素生产率的影响是践行中国畜牧业绿色发展理念的关键问题。方法 文章基于2007—2021年中国27个省际面板数据，采用非角度、非径向的SBM模型对我国奶牛养殖业绿色全要素生产率进行测算，利用固定效应模型检验产业集聚对绿色全要素生产率的影响，使用中介效应模型检验其传导机制。结果 我国奶牛养殖业的绿色全要素生产率处于波动上升态势，中部地区整体提升；产业集聚对绿色全要素生产率的提升具有显著促进作用；产业集聚通过改善人力资本结构、提升养殖技术水平对奶牛养殖业绿色全要素生产率起到促进作用；产业集聚对奶牛养殖业绿色全要素生产率的促进作用存在明显的区域异质性。结论 提出了推进奶牛养殖业的集聚发展、优化地理布局、完善人才引进补贴政策及加强科技创新力度等政策建议。

Abstract:

In the context of increasingly severe constraints on resources and environment, exploring the impact of industrial agglomeration on green total factor productivity of dairy farming is a key issue to implement the concept of green development of China's animal husbandry. Based on the panel data of 27 provinces in China from 2007 to 2021, the non-angular and non-radial SBM model was used to measure the green total factor productivity of dairy farming industry in China, the fixed-effect model was used to test the influence of industrial agglomeration on green total factor productivity, and the intermediate effect model was used to test its transmission mechanism. The results were showed as follows. The green total factor productivity of dairy farming industry in China was in a fluctuating upward trend, and the central region showed an overall improvement. Industrial agglomeration played a significant role in promoting the improvement of green total factor productivity. Industrial agglomeration promoted the green total factor productivity of dairy farming by improving human capital structure and raising breeding technology level. The promoting effect of industrial agglomeration on green total factor productivity of dairy farming industry had obvious regional heterogeneity. Therefore, some policy suggestions are put forward, such as promoting the agglomeration development of dairy farming industry, optimizing the geographical layout, perfecting the policy of talent introduction subsidy and strengthening the scientific and technological innovation.