GIS COMBINED WITH MCE TO EVALUATE LAND QUALITY

摘要

The evaluation of land quality plays an important role in the study of land resources. Some software of GIS was applied to evaluate land quality in recent years. There is some limitation in Appling GIS to evaluate land quality directly. GIS combined with MCE (Multi-Criteria Evaluation) can eliminate limitation existing in using GIS singly. In this thesis key technology of evaluating land quality with GIS and MCE is studded, including methods of confirming evaluation criteria, plotting spatial cells, diffusing spatial attribute value and combining spatial data in numeric way. Technology above was applied in plotting out requisition blocks of land in Tongshan country. The research indicated that the technology of GIS combined with MCE can integrate multiple source information associating with land quality commendably, and achieve measurable land quality evaluation.