摘要
[目的]分析肥西县土地利用变化及其驱动因素。[方法]基于肥西县2010、2016和2023年3期土地利用数据,从土地利用面积变化、类型转移等方面分析肥西县研究期内土地利用格局和变化特征,利用最小累积阻力(MCR)模型构建肥西县生态保护-农业生产-城镇扩张最小累积综合阻力面,通过阻力阈值法划定土地利用功能分区,并运用地理探测器模型对肥西县土地利用类型及其变化的驱动机制及影响因素进行深入研究。[结果]2010—2023年肥西县土地利用始终以耕地为主,耕地面积持续减少且面积减少较大,其中主要向林地和建设用地流入;林地面积有所增加且面积变化幅度较大;水域、草地、未利用地的面积呈减少趋势;建设用地面积呈持续增加趋势。肥西县生态保护适宜性高的区域主要位于肥西县中部及东部巢湖流域;农业生产适宜性高的区域主要位于肥西县西北部;城镇扩张适宜性高的区域主要分布在东南部桃花镇和上派镇地区。不同时间段内所选的各驱动因子对肥西县土地利用空间分布的影响程度不同,其中气温、降水量、蒸散发量为主要驱动因素;根据各因子交互探测效果可知,自然因素较社会经济因素对土地利用变化有着更明显的影响。[结论]该研究为区域土地利用及生态环境保护提供理论依据。
[Objective]To analyze the land use change and its driving factors in Feixi County.[Method]Based on the land use data of Feixi County in the three periods of 2010,2016 and 2023,this study analyzed the land use pattern and change characteristics of Feixi County during the research period from the aspects of land use area change and type transfer,the minimum cumulative resistance(MCR)model was used to construct the minimum cumulative comprehensive resistance surface for ecological protection,agricultural production and urban expansion in Feixi County,the land use functional zoning was delineated through the resistance threshold method,and the geographic detector model was used to conduct in-depth research on the driving mechanism and influencing factors of land use types and changes in Feixi County.[Result]From 2010 to 2023,land use in Feixi County had always been dominated by arable land,with a continuous and significant decrease in cultivated land,mainly flowing into forest land and construction land.The area of forest land had increased and the change in area was significant;the areas of water bodies,grassland and unused land were showing a decreasing trend,construction land area was showing a continuous increasing trend.The areas with high ecological protection suitability in Feixi County were mainly located in the central and eastern Chaohu Lake basin of Feixi County;the areas with high agricultural production suitability were mainly located in the northwest of Feixi County;the areas with high urban expansion suitability were mainly distributed in Taohua Town and Shangpai Town in the southeast.Different driving factors had different influences on the land use change in Feixi County in different periods,in which temperature,precipitation and evapotranspiration were the main driving factors.According to the interaction detection effect of various factors,natural factors had a more significant influence on the land use change than social and economic factors.[Conclusion]The research provides a theoretical basis for regional land use and ecological environment protection.
出处
《安徽农业科学》
2025年第10期67-75,110,共10页
Journal of Anhui Agricultural Sciences
基金
安徽农业大学和安徽省第四测绘院合作项目“基于时空演变特征的耕地种植状态智能识别与动态变化研究”(kj24110)。
关键词
土地利用变化
自动识别
功能分区
驱动力
地理探测器
Land use change
Automatic identification
Functional zoning
Driving force
Geographical detector
作者简介
韩月侠(1999-),女,安徽阜阳人,硕士研究生,研究方向:土地资源管理与利用;通信作者:董斌,教授,博士,博士生导师,从事测绘地理信息技术及其生态环境应用研究。
