Research on the Quality Evaluation of Cultivated Land in Provincial Area Based on AHP and GIS:A Case Study in Jilin Province

The purpose of this paper is to take Jilin province as an example to discuss the means and method of evaluation of the quality of cultivated land in provincial area.Methods employed include analytic hierarchy process and spatial analysis of geographic information system.The result indicated that:(1) The quality of cultivated land in Jilin Province were divided into five grades,the 1st Level,the 2nd Level and the 3rd Level accounted for 18.87%,28.67% and 33.15%.(2) The quality of the spatial distribution of cultivated land in Jilin Province had a certain regularity,the best in central and western Secondly,the eastern part of the worst.(3) This method overcame the limits in the spatial distribution of discontinuous,long life cycle assessment and the higher cost.So the analytic hierarchy process and GIS spatial analysis method were simple and fast time-sensitive,and it was suitable for evaluation the quality of cultivated land in provincial area.