近年来，由于城镇化的快速推进，我国国土空间格局发生了巨大改变，出现了生态安全危机，对国土空间的可持续利用造成了严重威胁。生态效率作为国土空间考核的重要内容，其客观评价对优化现有的国土空间考评机制，进一步推进国土空间的差异化管理，实现区域经济与生态环境的可持续发展至关重要。

本文在总结相关研究成果的基础上，将生态系统服务价值作为重要生态因子纳入生态效率评价指标体系，结合非期望产出的超效率SBM模型对四川省不同主体功能类型区的生态效率进行了评价，基于Tobit回归模型对生态效率的主要影响因素进行了分析。结果显示：（1）生态系统服务价值对生态效率测算具有重要影响，评价方法改进前后结果差异明显。改进前后成都市、自贡市、眉山市、南充市、广元市及阿坝州2015年生态效率分别为3.1942、1.8391；1.0312、1.0326；1.1021、1.1043；0.7183、0.3727；0.4425、0.4214；0.3838、1.9382。传统测算结果符合“经济发展水平较好的地区生态效率越高”规律；改进后的结果显示生态环境质量较好的地区生态效率明显提高，而生态环境质量较差的地区则有所下降；（2）区域功能定位对其生态效率有影响。研究区生态效率排名顺序为重点生态功能区、国家级重点开发区、省级重点开发区、农产品主产区；（3）主要影响因素对改进前后生态效率的影响效果不同。改进前其影响因素主要集中在经济发展水平上，改进后其影响因素分析结果较为复杂。

根据上述研究结果得到以下结论：（1）生态效率评价指标体系经改进后其评价结果可以实现区域间的相对公平，相对真实、客观地反映了区域社会经济发展与资源环境间的关系以及不同类型国土空间的生态效率差异；（2）通过纳入生态系统服务价值丰富了生态效率评价指标体系，为国土空间考核评价体系提供了优化思路；（3）提出了针对不同主体功能类型区的生态效率差异化提升路径，为推进国土空间的分区差异化管理提供了理论依据。

本文尝试改进生态效率评价方法，使评价结果相对客观，以完善国土空间考评机制。进一步研究可以重点关注数据可获取性、长序列生态效率动态变化和生态效率空间分异性，进一步加强对完善国土空间考核体系的支持作用。

In recent years, due to the rapid advancement of urbanization, China's land spatial pattern has undergone great changes, and ecological security crisis has emerged, posing a serious threat to the sustainable use of land space. In view of the problems existing in the practice and research, this study improves the evaluation index system of ecological efficiency to obtain more objective results, optimizes the existing evaluation mechanism of land space, and further expands the theoretical system of land space management, providing important reference for promoting differentiated management and sustainable utilization of land space.

On the basis of summarizing the research results of ecological efficiency evaluation, this paper takes ecosystem service value as an important ecological factor and puts it into the index system of ecological efficiency evaluation. Then the ecological efficiency of different functional areas in Sichuan province was evaluated with the super efficiency SBM model of non-expected output. Then, based on the Tobit regression model, the main influencing factors of eco-efficiency were analyzed, and the differentiated improvement paths of eco-efficiency were proposed for regions with different main functional types. The results show that : (1) the value of ecosystem services has an important impact on the estimation of ecological efficiency, and the results before and after the improvement of the evaluation model are significantly different. Before and after the improvement, the ecological efficiency of Chengdu, Zigong, Meishan, Nanchong, Guangyuan and Aba in 2015 was 3.1942 and 1.8391, 1.0312 and 1.0326, 1.1021 and 1.1043, 0.7183 and 0.3727, 0.4425 and 0.4214, 0.3838 and 1.9382 respectively. The traditional calculation results are consistent with the rule that the higher the ecological efficiency is in the region with a higher level of economic development. The improved results show that the ecological efficiency of the areas with good ecological environment quality is improved obviously, while that of the areas with poor ecological environment quality is decreased. (2) regional functional positioning has an impact on its ecological efficiency. The ecological efficiency of the research area is ranked in the order of key ecological functional areas, national key development zones, provincial key development zones, and main agricultural production areas. (3) the main influencing factors have different effects on the ecological efficiency before and after the improvement. Before the improvement, the influencing factors of eco-efficiency were mainly focused on the level of economic development. The analysis results of its influence factors after improvement are more complex.

The main conclusions of this paper are as follows : (1) after the improvement of the evaluation index system of ecological efficiency, the evaluation effect is better, which can reflect the relationship between regional social economy and resource environment and the difference of ecological efficiency of different types of land space more objectively and truly; (2) the addition of ecosystem service value enriches the evaluation index system of ecological efficiency, and provides an optimization idea for the evaluation system of other land space; (3) the evaluation results of ecological efficiency provide a theoretical basis for promoting differentiated management of land space.

This paper tries to improve the evaluation method of ecological efficiency and make the evaluation result more objective and scientific, so as to improve the evaluation mechanism of territorial space.Further research can focus on the availability of data, the dynamic change of long sequence ecological efficiency and the spatial differentiation of ecological efficiency, and further strengthen the support for the improvement of land space assessment system.