Research on ecological efficiency of land space: a case of typical major function zones in Sichuan Province

Industrialization and urbanization have led to massive changes in China’s national land space, accompanied by series of ecological crises, threatening sustainable development of China’s national land space. In this paper ESV was added into the ecological efficiency evaluation index. Ecological efficiency in typical function zones in Sichuan were evaluated using the improved index combined with SE-SBM model. It was found that with improved evaluation index of ecological efficiency, the evaluation effect could better reflect the relationship between regional social economy and resource environment and the difference of ecological efficiency of different types of land space more objectively. Addition of ecosystem service value was found to enrich the evaluation index of ecological efficiency, to optimize the evaluation system of other land space. Further, the evaluation of ecological efficiency will provide some theoretical basis to promote differentiated management of land space.