岩溶山区耕地非粮化空间格局演变及其影响因素分析——以威宁彝族回族苗族自治县为例  

Analysis of the Spatial Pattern of Cultivated Land in Karst Mountains and Its Influencing Factors——Take Weining Yi Hui Miao Autonomouy County as an Example

作　　者：耿秘 刘艳[1] 吴冉 覃文艺 郑朋飞 GENG Mi;LIU Yan;WU Ran;QIN Wenyi;ZHENG Pengfei(School of Geography and Environmental Sciences,Guizhou Normal University,Guiyang 550025,China)

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550025

出　　处：《云南师范大学学报（自然科学版）》2024年第4期64-70,共7页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家社会科学基金资助项目(19BGL180).

摘　　要：研究选取岩溶山区威宁彝族回族苗族自治县作为研究区,分析其2017年、2019年和2021年三个时间段的耕地非粮化情况.通过全局莫兰指数和冷热点分析,揭示了耕地非粮化空间格局的演化,并利用地理加权回归模型研究了影响因素.结果显示,1)威宁彝族回族苗族自治县耕地非粮化整体呈增强趋势,但最大非粮化率下降了4.71%,空间上表现为西北—中部—西南的聚集特征;2)威宁彝族回族苗族自治县耕地非粮化空间格局的局部聚集差异明显.研究期间全局变化稳定,局部变化显著,热点逐年减少,冷点先减后增;3)地理加权回归模型分析表明,经济作物种植面积与非粮化正相关,而人口密度、肉类总产量、人均粮食产量与非粮化率负相关.This research selects Weining County,situated in a karst mountainous region,as the study area and analyzes the dynamics of non-grain cultivation in croplands for the years 2017,2019,and 2021.Through the application of the Global Moran’s I index and cold-hot spot analysis,the study uncovers the evolutionary trajectory of the spatial pattern of non-grain cultivation in croplands.Additionally,a Geographically Weighted Regression(GWR)model is employed to examine the influencing factors.The findings reveal several key points:1)Weining Yi Hui Miao Autonomouy County exhibits an overall intensification trend in non-grain cultivation,albeit with a 4.71% reduction in the maximum non-grain cultivation rate,manifesting a spatial clustering characteristic of northwest-center-southwest;2)Substantial local clustering variations are evident in the spatial pattern of non-grain cultivation in Weining Yi Hui Miao Autonomouy County.Over the three-year period,global patterns exhibit stability,while local changes are pronounced,with hotspots diminishing and cold spots initially decreasing before increasing;3)The GWR model analysis indicates a positive correlation between the area dedicated to cash crop cultivation and the incidence of non-grain cultivation,whereas population density,total meat production,and per capita grain yield are found to be negatively associated with the rate of non-grain cultivation.

关 键 词：岩溶山区 耕地非粮化 影响因素 乡村振兴 

分 类 号：S17[农业科学—农业基础科学]