广西土地利用转型与粮食产量耦合发展研究

Research on the Coupling Development of Land Use Transformation and Grain Production in Guangxi Province

社会经济的发展和转型依托于土地,土地利用与转型影响着粮食安全。在现有的县域数据和遥感数据的基础上,分析了广西县域土地利用变化与粮食产量间的联系,探讨了广西土地利用转型与粮食产量之间的耦合关系。研究结果表明:2005~2015年耕地利用强度与建设用地利用强度持续增强,耦合度较高的主要分布在多丘陵平地的中南部;耦合度较低的主要分布桂西北大石山区及建设用地增长较快的桂东南地区,这些时空差异促使着粮食生产格局不断演化,但区域内的粮食安全得到了基本的保障。

The development and transformation of social economy rely on land,and land use and transformation affect food security.On the basis of the existing county data and remote sensing data,the relationship between land use change and grain production in Guangxi Province is analyzed,and the coupling relationship between land use transformation and grain production in Guangxi Province is explored.From the results of the study,it can be seen that the intensity of cultivated land use and construction land use continued to increase from 2005 to 2015.The higher coupling degree is mainly distributed in the central and southern parts of the hilly flat land;the lower coupling degree is mainly distributed in the Dashi mountainous area and construction land in northwestern Guangxi.In the fast-growing southeastern Guangxi region,these temporal and spatial differences promote the continuous evolution of the grain production patterns.