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
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 un-covers the evolutionary trajectory of the spatial pattern of non-grain cultivation in croplands.Addition-ally,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-south-west;2)Substantial local clustering variations are evident in the spatial pattern of non-grain cultiva-tion 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 de-creasing 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.
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