The cropland with middle and low production and its limiting factors were evaluated based on the integrated technologies
of GIS and mathematic model in Licheng county. The results showed that the areas of middle and low production cropland were 2293.39 hm2 and 1594.97hm2, which were 25.49% and 17.72% of total protecting cropland in Licheng, respectively. The middle production cropland mainly distributed in Beigao and Xindu town, and the low production cropland mainly distributed in Beigao town. The major limiting factors of middle production cropland were drought,
calcium deficiency, poor, potassium deficiency, phosphorus deficiency and acid limitation, which were 88.76%、18.26%、15.48%、8.18%、7.91%and 6.53%of total middle production cropland, and those of low production cropland were drought, calcium deficiency, poor, obstacle horizon, waterlogging, saline-sodic and acid limitation, which were 96.98%、58.31%、54.89%、18.90%、18.47%、18.47%and 16.28% of total low production cropland. The
improvement and use countermeasures of regional cropland with middle and low production were discussed and suggested based on the evaluating results.