RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2005, Vol. 14 >> Issue (3): 304-309.

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EVALUATION OF LAND USE EFFICIENCY——A CASE STUDY OF JIANGNING COUNTY

PENG Jian, JIANG Yi-yi, LI Zheng-guo, ZHANG Xiao-fei, LI Wei-feng, YUE Jun   

  • Received:2004-06-21 Revised:2004-11-02 Online:2005-05-20
  • Contact: PENG Jian

Abstract: As the indicator of land use sustainability, evaluation of land use efficiency is one of research topics on urban land use in recent years at home and abroad. In this paper,by analyzing the connotation of land use efficiency and research progress on land use efficiency evaluation, we established evaluation indicators for land use efficiency in rapid urbanizing areas from the aspects of society, economy, ecology and environment. Applying the method of AHP, we also defined the weight of each indicator. A case study in Jiangning county, Nanjing city, was carried out to analyze the features of regional spatial differentiation of land use efficiency. The results showed that the whole land use efficiency of Jiangning is moderate and coordinated, and there were significant regional difference in land use efficiency and coordinated degree between the 20 villages of Jiangning. According to the clustering of land use efficiency, the whole area was divided into 7 types of land use efficiency, i.e. land use area with high efficiency and coordinated degree, land use area with high efficiency and basic coordinated degree, land use area with high efficiency and low coordinated degree, land use area with moderate efficiency and high coordinated degree, land use area with moderate efficiency and basic coordinated degree, land use area with moderate efficiency and low coordinated degree, and land use area with low efficiency and basic coordinated degree. The key countermeasures to promote land use efficiency were also discussed.

Key words: land use efficiency evaluation, coordinated degree, spatial differentiation, Jiangning county

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