摘要
研究山地城市城镇群“三生空间”用地格局时空演化规律,为区域土地资源利用及合理规划提供科学依据。基于重庆市“一区两群”格局和2000—2020年土地利用遥感监测数据,利用动态度模型、转移矩阵、核密度分析和土地利用程度指数从数量结构和空间结构两个方面定量分析各城镇群“三生空间”用地时空演变特征,并通过地理探测器分析不同时间尺度下“三生空间”用地变化驱动力。结果表明:研究期内各城镇群“三生空间”用地变化速度加快,主城都市区主要由农业生产用地集中向林地生态用地、工矿生产用地、城镇生活用地转化;渝东北三峡库区城镇群和渝东南武陵山区城镇群主要由农业生产用地向林地生态用地转化。近20年来,各城镇群整体处于发展期;农业生产用地高密度区主要分布在渝西地区,城镇生活用地高密度核心位于主城区,林地和牧草生态用地高密度区集中分布在渝东北三峡库区城镇群和渝东南武陵山区城镇群,水域和其他生态用地变化较为稳定;社会经济因素对各城镇群用地变化影响显著,其中人口密度为主导因子,因子间交互作用均呈现双因子增强或非线性增强。研究结果对于山地地区“三生空间”用地调控和政策制定具有一定的参考价值和指导意义。
Clarifying the spatial and temporal variations of land use pattern of“production-living-ecological space”in mountainous urban clusters can provide scientific basis for the utilization and rational planning of regional land resources.Based on the pattern of“one district and two clusters”in Chongqing and the remote sensing monitoring data of land use from 2000 to 2020,the dynamic degree model,transfer matrix,kernel density analysis and land use degree index were used to quantitatively analyze the spatial and temporal variations of“production-living-ecological space”land use in each urban cluster from two aspects of quantitative structure and spatial structure.The driving force of“production-living-ecological space”land use change at different temporal scales was analyzed by geographical detector.The results showed that land use change rate of the“production-living-ecological space”of each urban cluster accelerated and that the main urban metropolitan area was mainly converted from agricultural production land to forest ecological land,industrial and mining production land,and urban living land.The urban cluster in the Three Gorges Reservoir area in northeast Chongqing and the urban cluster in Wuling Mountain area in southeast Chongqing were mainly transformed from agricultural production land to forest ecological land.In the past 20 years,the urban clusters as a whole were in a development period.The high-density area of agricultural production land was mainly distributed in the western part of Chongqing.The high-density core of urban living land was located in the main urban area.The high-density area of forest and grassland ecological land was concentrated in the Three Gorges Reservoir area of northeast Chongqing and the Wuling Mountain area of southeast Chongqing.The change of water area and other ecological lands was relatively stable.Socio-economic factors had a significant impact on land use change of each urban cluster,with population density as the dominant factor.The interaction between factors showed two-factor enhancement or non-linear enhancement.Our results provide reference for land use regulation and policy formulation of“production-living-ecological space”in mountainous areas.
作者
李良鑫
魏兴萍
喻元秀
李慧
蔡云丽
陈诗蝶
冯柳柳
李文颜
LI Liangxin;WEI Xinping;YU Yuanxiu;LI Hui;CAI Yunli;CHEN Shidie;FENG Liuliu;LI Wenyan(School of Geography and Tourism Science,Chongqing Normal University,Chongqing 401331,China;Chongqing Key Laboratory of Wetland Science Research in the Upper Yangtze River,Chongqing 401331,China;Chongqing Ecological Environment Engineering Evaluation Center,Chongqing 401120,China)
出处
《生态学杂志》
北大核心
2025年第7期2350-2364,共15页
Chinese Journal of Ecology
基金
重庆市自然科学基金项目(cstc2021jcyj-msxmX0616和cstc2016jcyjA0150)
国家自然科学基金项目(42107355和41202135)资助。
关键词
城镇群
三生空间
一区两群
格局演变
驱动力
urban cluster
production-living-ecological space
one district and two clusters
pattern variation
driving force
