岩溶槽谷区耕地“非粮化”空间分异特征及驱动机制——以贵州铜仁万山区为例  

Characteristics and Driving Mechanism of Spatial Differentiation of“Non-grain”Cultivated Land in Karst Trough Valley Area:Taking Wanshan District,Tongren,Guizhou as an Example

作　　者：何鑫 钟九生[1] 林双双 代仁丽 何志远 时国庆 He Xin;Zhong Jiusheng;Lin Shuangshuang;Dai Renli;He Zhiyuan;Shi Guoqing(Academy of Guizhou Normal University Geography and Environmental Sciences,Guiyang 550025,Guizhou,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：《地理科学》2022年第12期2207-2217,共11页Scientia Geographica Sinica

基　　金：国家自然科学基金项目(41661081);贵州省科技计划项目([2017]5726-56)资助。

摘　　要：以地处岩溶槽谷地貌的万山区为研究区域,采用空间自相关、热点分析从不同角度分析了“非粮化”耕地的空间结构特征和分布规律,借助地理探测器模型探讨了耕地“非粮化”区域差异驱动因素,并结合岩溶槽谷地形地貌环境研究了耕地“非粮化”的驱动机制。结果表明:①万山区未耕种“非粮化”耕地较多,并且耕地向林地与园地调整比例较大,在空间分布上存在较强的空间聚集性。②在众多因素中,距离农村道路的远近是引起区内所有耕地“非粮化”的主导驱动力,导致耕地形成不同的“非粮化”类型。③区内“非粮化”耕地的形成与分布受外在驱动力的影响显著,不同“非粮化”耕地类型的主导驱动力不同,但内部之间存在一定的联系。④在原始驱动力(地形因素)与外在驱动力(区位因素)并伴随退耕还林还草、生态修复等措施诱导的作用下,槽谷谷底、谷坡、谷顶耕地“非粮化”类型大体相同。The spatial structure and distribution of“Non-grain”cultivated land in Wanshan area,which is located in karst valley landform,were analyzed by using spatial autocorrelation and hotspot analysis,The driving factors of regional difference of cultivated land non-grain conversion were discussed with the help of the geodetic probe model,and the driving mechanism of cultivated land non-grain conversion was studied in combination with the topography and geomorphologic environment of karst troughs and valleys.The results show:1)There are more“Non-grain”cultivated land in Wanshan area,and the proportion of cultivated land to woodland and garden land is large,so there is strong spatial aggregation in spatial distribution.2)Among the many factors,tthe distance from the rural roads is the main driving force,which leads to the formation of different types of“Non-grain”cultivated land.3)The formation and distribution of“Non-grain”arable land in the region are significantly affected by external driving forces,and different types of“Non-grain”arable land have different driving forces,but there are some internal links between them.4)Under the influence of the original driving force(topographic factor)and external driving force(location factor)accompanied by measures such as returning farmland to forests and grasslands,ecological restoration,etc.,the trough valley low,valley slope and valley top cultivated land“Non-grain”types are roughly the same.

关 键 词：岩溶槽谷区 耕地 非粮化 地理探测器 贵州铜仁市 

分 类 号：F301.21[经济管理—产业经济]