家畜生态学报2024，Vol.45Issue(2)：47-54,8.DOI:10.3969/j.issn.1673-1182.2024.02.008
中国蛋鸡饲养绿色全要素生产率实证研究
Empirical Research on Green Total Factor Productivity of Laying Hens in China
摘要
Abstract
In order to improve the productive efficiency of the laying hens and reduce the discharge of pollution,the article measures the green total factor productivity of China's laying hens,taking the nega-tive output,scale heterogeneity and regional heterogeneity into account.This paper constructs a three-level SBM-MML index,and decomposed it into scale structure efficiency,technical efficiency,and manage ment efficiency.The results show that the average LHBG during 2004 to 2018 was 0.9967;the LHBG for Large'midde and small scales were 0.9949,1.0013 and 0.9938 respectively;that for the East,the Middle and the West regions were 0.9930,0.998 and 1.0040,respectively.The green total factor productivity of China's lay-ing hens decreased by 0.33％,with the highest in medium scale,the second in large scale,the lowest in small scale.From the perspective of regions,the green total factor productivity of China's laying hens was highest in the western region,followed by the central region,and lowest in the eastern.Its decomposition efficiency shows that the scale structure efficiency and technical efficiency improved,and the management efficiency decreased.关键词
蛋鸡饲养/绿色全要素生产率/多层次共同前沿模型/污染排放/数据包络分析法Key words
laying hens breeding/green total factor productivity/multi-level common frontier model/pollution emission/DEA分类
农业科技引用本文复制引用
仲深,李俊薇,郭翔宇..中国蛋鸡饲养绿色全要素生产率实证研究[J].家畜生态学报,2024,45(2):47-54,8.基金项目
国家社会科学基金重点项目(18AJY016) （18AJY016）
