2001—2007年湖北省耕地安全演化分析

Evolution of Cultivated Land Security System in Hubei Province from 2001 to 2007

为了研究湖北省耕地资源安全状况,从耕地的数量、质量以及耕地生态3个方面构建了耕地安全演化评价体系,应用信息熵模型评价了湖北省2001—2007年耕地安全系统的演化状况。结果表明:湖北省的耕地系统从2001年的0.12088,变为2007年的-0.22354,其中耕地的数量、质量及生态分别从2001年的0.10358、-0.00286、0.02015变为2007年的-0.22273、-0.00078、-0.00002。说明湖北省耕地安全向着有序的方向发展,且有序度不断增强。但仍存在不稳定因素,主要为人均耕地减少、城市快速扩张、生态环境恶化等。因此,应加大耕地整理力度,提高城市土地集约度,同时运用经济、法律、政策手段提高耕地质量,改进耕地生态。

In order to research the cultivated land security system in Hubei province,the indicator system for evaluating cultivated land security development was built through three aspects of quantity,quality and ecology,at the same time,it was also analyzed by information entropy model between 2001 and 2007 in Hubei province.The results showed that：the value of the cultivated land system was from 0.12088 into-0.22354 between 2001 and 2007,besides,the value of the cultivated land quantity,quality and ecology were from 0.10358,-0.00286,0.02015 into-0.22273,-0.00078,-0.00002.This demonstrated that the cultivated land system of hubei province was developing towards an orderly direction and the harmonious degree was increasing gradually,but there were still unstable factors,such as the reduction in cropland acreage per capita,urban rapid expansion,ecological environment deterioration etc.Therefore,on the one hand,the cultivated land consolidation dynamics should be intensified,the urban land intensive degree should be improved;on the other hand,economic,legal and policy should be adopted to raise the quality of cultivated land and improve cultivated land ecology.