基于Meta-US-SBM模型的长株潭生态效率测度与评价

Measurement and Evaluation of Ecological Efficiency of Changsha, Zhuzhou and Xiangtan Based on Meta-US-SBM Model

摘要: 发展绿色经济是长株潭实现两型社会的必要渠道，生态效率的测度与评价对于绿色经济的评估，是比较合适的方法。本文以长株潭“3 + 5”城市群为研究对象，建立全要素生产框架，将经济效率、能源效率、环境效率与生态效率纳入统一模型中，运用Meta-US-SBM模型测算了各市2006~2016年的生态效率及其子效率，再根据各市子效率的结果分析其生态效率高低的成因。实证结果表明：长株潭城市群生态效率整体呈上升趋势，但长沙处于明显领先地位，与其他各市差距明显。长株潭城市群经济效率较高，经济发展整体良好，且趋势稳定；在环境效率下，长株潭城市群各市均具有上升趋势，但与经济效率相比相对平缓；而能源效率方面，整体较低，需要重点对待。

Abstract: Developing a green economy is a necessary channel for Changsha, Zhuzhou and Xiangtan to achieve a two-type society. The measurement and evaluation of ecological efficiency is a suitable method for the assessment of green economy. This paper takes the “3 + 5” urban agglomeration of Changsha, Zhuzhou and Xiangtan as the research object, establishes a total factor production framework, and integrates economic efficiency, energy efficiency, environmental efficiency and ecological efficiency into a unified model, and uses the Meta-US-SBM model to measure the cities’ Eco-efficiency and its sub-efficiency in 2006-2016, and then analyze the causes of eco-efficiency based on the results of each city's efficiency. The empirical results show that the overall eco-efficiency of Changsha, Zhuzhou and Xiangtan urban agglomerations is on the rise, but Changsha is in a clear leading position, and the gap with other cities is obvious. The Changsha, Zhuzhou and Xiangtan urban agglomerations have high economic efficiency, the overall economic development is good, and the trend is stable. Under the environmental efficiency, the cities of Changsha, Zhuzhou and Xiangtan have an upward trend, but they are relatively flat compared with economic efficiency. In terms of energy efficiency, the overall Lower, needs to be treated with emphasis.