耕地非农转换空间非均衡测度及空间扩散路径分析—

耕地非农转换空间非均衡测度及空间扩散路径分析——以武汉城市圈为例

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中文摘要：基于武汉城市圈 48 个区(县)2000-2020 年 5 期土地利用变化数据,采用洛伦兹曲线、基尼系数测算武汉城市圈耕地非农转换空间非均衡程度,并利用重心模型绘制基于耕地非农转换速度的分级重心曲线,分析耕地非农转换空间分布特征及时空扩散路径.结果表明:(1)武汉城市圈耕地非农转换速度呈现中部高,四周低的总体特征.(2)耕地非农转换速度空间分异特征明显,不同时期耕地非农转换最快的区域均集中于武汉市及黄石市下辖区县.(3)武汉城市圈耕地非农化在县域尺度上空间分布极不均衡,且非均衡程度有先下降后逐步上升的趋势,其中 2005-2010 年非均衡程度最低.(4)2000-2020 年不同时期耕地非农转换速度分级的重心集中分布于武汉市洪山区、蔡甸区、江夏区、江岸区以及鄂州市的鄂城区.(5)武汉城市圈耕地非农化重心空间迁移方向为西北—东南—西北,其空间扩散路径整体呈现回旋状.该研究实现了武汉城市圈在县域尺度耕地非农转换方向和均衡性的动态可视化,为协调土地非均衡发展和促进区域均衡发展提供了一定科学依据.

外文标题：Spatial disequilibrium and spatial diffusion path of cultivated land conversion:A case study of Wuhan Metropolitan Areas

外文摘要：Based on five periods of land use data spanning 20 years(from 2000 to 2020)at county-level in Wuhan Metropolitan Areas,the Hendrik Lorentz curve of cultivated land conversion was fitted and the corresponding Gini coefficients were calculated to measure the degree of spatial disequilibrium.In addition,the curve of gravity center was employed to analyze the spatial diffusion path of cultivated land conversion in Wuhan Metropolitan Areas from 2000 to 2020.The results indicated that:(1)the non-agricultural conversion rate of cultivated land in Wuhan Metropolitan Area was characterized as high degree in the middle areas and low degree in the periphery areas;(2)there existed a marked spatial difference of conversion rate of cultivated land from 2000 to 2020,where the highest rates were concentrated in Wuhan and Huangshi;(3)at county level,the spatial distribution of cultivated land conversion in Wuhan Metropolitan Area was extremely uneven where the degree of disequilibrium decreased during 2000 to 2010 and then increased gradually;(4)the gravity center of non-agricultural conversion rate of cultivated land from 2000 to 2020 was mainly distributed in Hongshan,Caidian,Jiangxia and Jiangan in Wuhan,and Echeng in Ezhou;(5)the spatial diffusion path of cultivated land conversion in Wuhan Metropolitan Area showed a convoluted structure starting from the northwest and moving to the southeast and northwest.This study reveals a dynamic visualization of direction and spatial disequilibrium of cultivated land conversion,which can help to provide scientific basis for coordinating unbalanced land development and regional development.

外文关键词：

cultivated land conversionspatial disequilibriumgravity center curvediffusion pathWuhan Metropolitan Areas

作者：

李江涛、文兰娇、张安录

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作者单位：

华中农业大学公共管理学院,武汉 430070

华中农业大学生态与环境经济研究所,武汉 430070

关键词：

耕地非农转换空间非均衡重心曲线扩散路径武汉城市圈

基金：

国家社科基金重大项目国家自然科学基金项目国家自然科学基金项目教育部项目教育部春晖计划国际合作项目国家自科基金国家社科基金中央高校基本业务费基金中央高校基本业务费基金

项目编号：

18ZDA054718730537180405422YJA790065HZKY202203497227304822FJYB04122YJA7900652662022GGYJ004

出版年：

2024

DOI：

10.14108/j.cnki.1008-8873.2024.04.013

生态科学

广东省生态学会暨南大学

生态科学

CSTPCD北大核心

影响因子：0.464

ISSN：1008-8873

年,卷(期)：2024.43(4)