RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2006, Vol. 15 >> Issue (3): 325-329.

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DISCUSSION ON LAND SUITABILITY EVALUATION DECISION SUPPORT SYSTEM BASED ON GIS——A CASE STUDY ON CHUNHUA COUNTY, JIANGNING DISTRICT, NANJING CITY

XIA Min1,ZHAO Xiao-min, ZHANG Jia-bao,LIU You-zhao1,ZENG Zhi-qiang1   

  • Received:2005-09-13 Revised:2005-09-22 Online:2006-05-20
  • Contact: XIA Min

Abstract: Traditional land suitability evaluation system based on GIS is deficient in supporting the decision of spatial issues, while integration of GIS and DSS in land suitability evaluation system can both manage spatial data and assist decision by using relevant models. With MapInfo Professional 6.0 as the platform and Visual 〖XC夏敏字2.TIF,JZ〗6.0 as the developing tool, a land suitability evaluation system based on GIS and DSS is developed. It is made of database system, model base system, knowledge base system and manmachine interface, and has functions of inputing and outputing data, querying between map and attributes. It can also analyse spatial data, assist decision, and so on. The system is successfully applied in land suitability evaluation of Chunhua County, Jiangning District, Nanjing City. It is indicated that the system can provide several decision models to be selected, and integrate functions of data management and spatial analysis. It meets the need of countylevel land suitability evaluation, and has values being popularized.

Key words: land suitability evaluation, geographic information system, decision support system

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