摘要
随着西充县经济和城市建设高速发展,西充县土地利用结构发生了较大的变化.为探讨西充土地利用时空变化特征及其背后的驱动因素,使用2005、2010、2015、2020年土地利用现状数据,利用Arc GIS10.4等软件,分析西充县近15 a土地利用类型的结构、变化面积和迁移方向特征.结果表明:(1)2005—2020年来西充建设用地面积一直在增加,且2005—2010年增加速度最快;耕地2005—2020年持续减少,在2005—2010年减少速度最快;草地变化幅度较小;其他三种土地类型面积都有增加.(2)2005—2020年主要是耕地向建设用地和林地转出,建设用地净转入大于净转出.(3)农村人口向城市迁移,社会经济快速发展和政府政策是西充县土地利用变化的主要影响因素.
With the rapid development of Xichong County's economy and urban construction,the land use structure of Xichong County has undergone major changes.To explore the characteristics of spatial and temporal land use changes in Xichong and the driving factors behind them,this study used current land use data for four peri-ods,2005,2010,2015 and 2020,and used software such as Arc GIS to analyze the structure,area of change and migration direction characteristics of land use types in Xichong County over the past 15 a.The results showed that:(1)The area of built-up land in Xichong has been increasing from 2005 to 2020,and the rate of increase was the fastest from 2005 to 2010;Cropland continues to decline from 2005—2020,with the fastest rate of decline in 2005—2010;The change in grassland was small;all three other land types increased in area.(2)The 2005—2020 period is dominated by the transfer of cropland to built-up land and forest land,with the net transfer of built-up land being greater than the net transfer.(3)The increase in urban population,rapid socio-economic development and the intro-duction of policies are the main influences on land use changes in Xichong County.
作者
付雪颖
罗培
王珞伊
张鹏辉
FU Xueying;LUO Pei;WANG Luoyi;ZHANG Penghui(College of Geographical Sciences,China West Normal University,Nanchong,Sichuan 637009)
出处
《绵阳师范学院学报》
2024年第11期102-110,118,共10页
Journal of Mianyang Teachers＇ College
关键词
土地利用变化
驱动因素
西充县
Land use change
Driving factors
Xichong County
