摘要
运用空间基尼系数、地理集中度和重心转移模型,研究2021—2022年北京市新增耕地的空间聚集程度,运用地理探测器模型,分析新增耕地空间分异的驱动因子。2022年新增耕地数量较2021年有大幅度增加,整体上新增耕地空间分布较为分散,新增耕地的地理重心由西向东、由南向北转移。2022年新增耕地数量空间分布主要受建设规模和资金投入的政策因素驱动。各因子之间通过非线性增强和双因子增强的交互作用共同影响新增耕地的空间分布,建设规模和资金投入的综合作用在极大程度上控制新增耕地空间分布,耕地面积和土壤性质与政策因素的综合作用对新增耕地空间分布影响重大。
Using spatial Gini coefficient,geographic concentration,and gravity center transfer model,this study investigates the spatial clustering degree of newly added arable land in Beijing from 2021 to 2022.Using a geographic detector model,the driving factors of spatial differentiation of newly added arable land are analyzed.The number of newly added arable land in 2022 has significantly increased compared to 2021.Overall,the spatial distribution of newly added arable land is relatively scattered,and the geographical center of the newly added arable land has shifted from west to east and from south to north.The spatial distribution of newly added arable land in 2022 is mainly driven by policy factors such as construction scale and capital investment.The interaction between various factors through nonlinear enhancement and dual factor enhancement jointly affects the spatial distribution of newly added arable land.The comprehensive effect of construction scale and capital investment largely controls the spatial distribution of newly added arable land.The comprehensive effect of arable land area,soil properties,and policy factors has a significant impact on the spatial distribution of newly added arable land.
作者
刘芬芬
顾海波
贾唯远
白江伟
王天宇
孟美杉
刘清俊
LIU Fenfen;GU Haibo;JIA Weiyuan;BAI Jiangwei;WANG Tianyu;MENG Meishan;LIU Qingjun(Beijing Institute of Ecological Geology,Beijing 100011,China)
出处
《城市地质》
2026年第1期21-28,共8页
Urban Geology
基金
土地资源整理项目新增耕地验收核查及评估项目资助。
关键词
新增耕地
空间特征
重心转移模型
地理探测器
驱动因子
北京市
newly added arable land
space features
gravity center transfer model
geodetector
driving factors
Beijing
