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随着辽宁沿海经济带工业化、城市化进程的不断推进,经济发展对环境的影响越发明显。因此,环境的保护和治理问题得到了学术界、政府以及公众的广泛关注。本文拟利用数据包络分析方法 (DEA),对辽宁沿海经济带环保投入的效率进行测算,并结合环保基本情况进行综合评价。结果表明,环境治理投入总体是有效的,其中技术投入、环保产业规模的扩大效率最高,但个别方面也存在冗余或不足,即辽宁沿海经济带城市间存在一定的差异。基于此,提高辽宁沿海经济带的环境质量应当从调整环保的方向着手,推进相关环保技术的发展。
With the industrialization and urbanization of Liaoning’s coastal economic belt, the impact of economic development on the environment has become more and more obvious. Therefore, the issue of environmental protection and governance has drawn wide attention from academia, government and the general public. This paper intends to use data envelopment analysis (DEA) to measure the efficiency of environmental protection investment in Liaoning coastal economic zone, and make a comprehensive assessment based on the basic situation of environmental protection. The results show that the input of environmental governance is generally effective, of which the technical input and the scale of environmental protection industry have the highest efficiency of expansion, but there are also some redundancy or deficiency in individual aspects, that is, there are some differences among cities in Liaoning coastal economic belt. Based on this, improving the environmental quality of Liaoning’s coastal economic belt should start from the direction of environmental protection and promote the development of relevant environmental protection technologies.