论文部分内容阅读
近20a来,随着经济快速发展,江西省耕地资源不断减少。选取GDP、人口、固定资产投资总额、城市化水平与耕地面积作为主要分析指标,运用多元线性回归法和土地利用弹性系数理论分析了1990～2009年江西省经济发展与耕地面积变化的关系。研究结果表明:江西经济发展和人口增长与耕地面积变化呈负相关关系。经济社会的快速发展、人口数量的不断增加,特别是城市化水平的提高,是耕地资源流失的主要原因;江西耕地利用弹性系数较低且呈现剧烈波动性,说明在经济快速发展过程中江西耕地集约利用程度较低。
In the recent 20 years, with the rapid economic development, the cultivated land resources in Jiangxi Province have been declining. Taking GDP, population, total investment in fixed assets, urbanization level and cultivated land area as the main indexes, the relationship between economic development and cultivated land area change in Jiangxi Province from 1990 to 2009 was analyzed by multiple linear regression method and land use elasticity coefficient theory. The results show that: Jiangxi’s economic development and population growth and the change of cultivated land area is negatively correlated. The rapid economic and social development, increasing population, especially the urbanization level is the main reason for the loss of cultivated land resources. The elasticity coefficient of cultivated land use in Jiangxi is low and fluctuates violently. It shows that in the process of rapid economic development, cultivated land in Jiangxi Less intensive use.