柳州市区土地利用变化及驱动力分析

Analysis of land use change and driving force in Liuzhou urban area

将土地利用类型分为耕地、林地、草地、水域、建设用地和未利用地六大类,研究广西柳州市区2010—2018年土地利用变化;结合定性与定量分析,选取年末总人口、地区生产总值、第一产业生产总值、第二产业生产总值、第三产业生产总值、财政收入、工业总产值、粮食产量、固定资产投资、社会消费品零售总额10个因子,采用灰色关联度分析土地利用变化驱动力。结果表明,柳州市区2010—2018年土地利用变化主要特征是建设用地面积增加、耕地等其他土地利用类型面积减少;主要驱动力是人口和经济的增长、粮食产量、政策因素。基于研究结果提出建议,为柳州市区土地可持续利用提供参考。

The land use types were divided into six categories:cultivated land,forest land,grassland,water area,construction land and unused land,and the land use change in Liuzhou urban area,Guangxi from 2010 to 2018 was studied.Combining qualitative and quantitative analysis,ten factors,including the total population at the end of the year,the regional GDP,the GDP of the primary in⁃dustry,the GDP of the secondary industry,the GDP of the tertiary industry,fiscal revenue,the total industrial output value,grain output,investment in fixed assets and the total retail sales of social consumer goods,were selected to analyze the driving force of land use change by using grey correlation degree.The results showed that the main characteristics of land use change in Liuzhou urban area from 2010 to 2018 were the increase of construction land area and the decrease of cultivated land and other land use types.The main driving forces were population and economic growth,food production and policy factors.Based on the research results,some sugges⁃tions were put forward to provide reference for the sustainable land use in Liuzhou urban area.