摘要
基于甘肃省1997-2006年耕地十年变化的数据,研究了甘肃省经济发展过程中耕地面积变化的过程,并运用统计分析方法,对近十年来耕地变化与人口以及固定资产投资、人均GDP等经济指标进行相关分析。结果表明:耕地面积与人口呈相反趋势,与固定资产投资、人均GDP、城市化水平呈正"U"型三次曲线相关,即固定资产投资总额、人均GDP和城市化水平随着时间的推移增长到一定阶段后,它们的提高对耕地面积减少的影响呈递减趋势。
The cultivated land changes of Gansu in 1997-2006 were researched. By using statistical analysis methods,we analyzed the dynamic changing relation between the cultivated lands and the growth of population and economic development in Gansu Province. The results showed that cultivated land change trend was opposited to the population change trend. However,the correlation between the cultivated land area and the fixed asset investment,GDP per capita and urbanization showed cubic curve. That is with the increasing of population and economy growth,the tendency of the cultivated land decreasing presented a change of firstly decreasing,then in-creasing,and decreasing again.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2011年第1期74-79,共6页
Journal of Arid Land Resources and Environment
关键词
甘肃省
耕地面积
经济发展
人口增长
Gansu Province
cultivated land
economic development
population growth
