基于DEA模型的区域生态环境建设绩效评价——以江苏省苏州市为例 

选取生态系统服务价值、生态绿当量、人均生态足迹赤字和环境质量综合指数作为区域生态环境质量表征指标，借助DEA模型对区域生态环境建设过程中劳动力投入、资金投入、技术投入和资源投入的绩效进行评价，结果表明：（1）苏州市10年来生态环境建设总体而言绩效良好，DEA有效年份占30％，弱有效年份占20％，无效年份占50％，并且无效年份的效率指数都在0.97以上；（2）导致苏州市最近5年生态环境建设DEA无效的原因主要是资源投入不足，生态用地成为区域生态环境建设刚性约束；（3）通过调整生态环境建设要素投入比例，各种生态环境指标值都将有所提高，区域生态环境质量也将显著改善；（4）地区生态环境建设绩效下降还受地区人口数量增加、人均生态占用增长、生态环境累积效应影响。最后从促进区域社会经济与生态环境协调发展的角度提出相关建议。

EFFICIENCY OF ECOLOGICAL ENVIRONMENTAL PROTECTION BASED ON THE MODEL OF DATA ENVELOPMENT ANALYSIS (DEA——A CASE STUDY OF SUZHOU CITY， JIANGSU PROVINCE〖WT〗

In this paper，the authors chose the ecosystem service value，ecological green equivalent，ecological footprint deficit per capita and comprehensive index of environmental quality as the index system to describe the regional ecological environmental quality，in order to evaluate the efficiency of the input of labour，capital，technology and ecological land use in the process of regional ecological environment protection by using the data envelopment analysis model.It is revealed that the efficiency of ecological environment protection of Suzhou City was in a suitable situation for the last ten years as a whole，30% of the years were effective，20% were effective weakly and 50% useless.The index system of efficiency in useless years was more than 0.97.The reason for the DEA inefficiency of the ecological environment protection in the last five years was due to the lack of ecological land use，and the ecological land became rigid，and thus influenced the regional ecological environment protection.By adjusting the input proportion of factors，all indexes of ecological environment will improve and the regional ecological environment quality will become better.The decline of the efficiency of regional ecological environmental protection is also affected by the population growth，and by the increase of ecological occupancy per capita and the accumulative effect of ecological environment.Finally，in order to promote the coordinated ecological environment protection and social economic development，some suggestions were proposed in this paper.