【摘要】 根据山东省1990~2006年的统计资料,运用统计分析方法,分析了17年来山东省耕地变化与人口增长、经济发展之间的动态关系,建立了耕地面积变化与人口、GDP、人均GDP之间的回归模型。结果表明:1990~2006年,山东省耕地面积经历了低速减少—急剧减少—缓慢减少的变化过程,人均耕地面积17年来持续减少;山东省耕地面积与人口、人均GDP具有明显的相关关系,运用线性回归拟合性较好;山东耕地变化区域差异明显,且随着经济发展水平的提高,增加单位经济总量占用的耕地面积在逐渐减少。更多还原

【Abstract】 Based on the statistical data of Shandong Province from 1990 to 2006,this paper analyzed dynamic relationship among cultivated land decreasing,population increasing and economic development during recent 17 years by adopting the method of statistical analysis.The regression model was established for studying the correlation among cultivated land decreasing,population,GDP and per capita GDP.The results showed that from 1990 to 2006,the cultivated land in Shandong Province experienced three stages from slow decrease,sharp decrease to slight decrease,and the per capita area of cultivated land had been decreasing gradually in 17 years.Significant correlation among cultivated land decreasing,GDP and per capita GDP in Shandong Province was well described by the linear regression model.There were clear regional differences of cultivated land change in Shandong Province,and the area of cultivated land occupied by increasing unit of economic aggregate was gradually decreasing.更多还原