Cultivated land resources, as a rare resource,has fixability in space position and excludability in utilization. It demands sustainability in using process,and pursues unity of economy, society and ecology. From the aspect of sustainable utilization, evaluation index system of cultivated land sustainable utilization is established. By using related coefficient, the weight of each index was calculated. According to scientific gray forecast theory, using GM(1, 1) module of DPS data processing software, it is ...