Abstract
The research of urban land use efficiency has important practical significance for improving the efficiency of China's urban land use, saving land resources and solving the contradiction between people and land. The research method of this paper is data envelopment analysis, which is a new kind of method for system analysis. Mainly five kinds of model of DEA are used, namely C2R, BC2, C2GS2, C2W and C2WH model. The scope of application is different. This paper uses C2R model to evaluate the validity of the efficiency of land use in Harbin, from the point of relative efficiency, Harbin urban land use efficiency is at a higher level. but exits some shortcomings. In the end, the author puts forward some suggestions to improve land use efficiency combined with the actual situation.
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