重庆市耕地变化及驱动力分析

采用重庆市直辖以来14年的耕地统计数据,对建市以来重庆市耕地数量变化的趋势进行了分析,指出耕地数量变化呈递减趋势;利用14年的社会经济统计数据,用SPSS16.0软件主成分分析方法定量分析了影响耕地变化的因子,结果表明,社会经济因素、生活水平因素、人口因素、城市化率是引起耕地变化的最主要因子。

Study on the Change of Cultivated Land Use and Its Driving Force in Chongqing City

According to the statistical data of cultivated land of Chongqing City during the last 14 years,the trend of the cultivated land quantity change was discussed in this paper,it was shown that the quantity of cultivated land was reducing year by year.According to the social and economic statistical data from 1997~2010,the principle component analysis methods and statistical software SPSS 16.0 were adopted to comprehensively and quantitatively analyze the driving factor of land area change.It was concluded that the socio-economic factor,the life level factor,the urbanization factor and the population factor were the main factors which had an important effect on the change of the cultivated land.