广州市耕地数量与产业结构变化的关系研究

经济发展离不开自然资源的投入,耕地面积的大量减少不可避免。该文在分析广州市耕地数量和产业结构变化的基础上,选择了广州市的两个产业发展时期,即“二三一”型阶段(1980~1993年)和“三二一”型阶段(1994~2002年),对两个时期的耕地数量与产业结构变化的关系进行分析。结果表明:(1)广州市在不同产业结构下耕地消耗存在着差异,发展阶段越高,耕地消耗量越小;(2)在“二三一”阶段,耕地变化受工业的发展影响最大,经济发展依赖于资源的消耗;(3)在“三二一”阶段,广州经济的发展对资源的依赖性减少,第三产业发展成为了耕地数量变化的主导因素;(4)在耕地转化效益上,“三二一”阶段明显要优于“二三一”阶段,广州经济由粗放型向集约型进行转化。

STUDIES ON THE RELATION BETWEEN ARABLE LAND QUANTITY IN GUANGZHOU AND INDUSTRY STRUCTURE CHANGE

Economy can never develop without the investment of natural resources.Large quantity decrease of arable land is inevitable.On the basis of analyzing arable land quantity in Guangzhou and changes occurred in industry structure,this paper selects 2 periods of industry development,namely,the stage of "231" type(1980-1993) and the stage of "321" type(1994-2002),and analyzes the relation between arable land quantities and industry structures changed during these 2 stages.Results show that 1) There exists difference in arable land consumption under different industry structures.The higher is the development stage,the less consumption of the arable land.2) During the "231" stage,changes in arable land quantities is heavily influenced by industry development.Economic development relies on the consumption of resources.3) During the "321" stage,the reliance of economic development in Guangzhou to resource reduced.Development of third industry has become the leading factor for quantity changes of arable lands.4) As for the efficiency of arable land transformation,the "321" stage is obviously superior than the "231" stage.Economy of Guangzhou shall transfer from coarse type to intensive type.