耕地利用转型的时空格局与转移路径——以沪浙闽为例

Spatial-temporal pattern and transfer path of cultivated land use transition from the perspective of human-land-industry coordinated development:A case study of Shanghai,Zhejiang and Fujian

以沪浙闽案例区耕地为研究对象,基于乡村振兴发展理念与“人—地—业”协调发展观,构建评价指标,对沪浙闽耕地利用进行测度,运用耦合度、空间自相关和标准差椭圆等方法,分析2005—2020年沪浙闽耕地利用指数,探索耕地利用转型的时空分布及转移路径。结果表明:(1)2005—2020年研究区各耕地利用转型指数整体呈下降趋势且耕地利用差异性不断减小。(2)研究区耕地利用空间转型与功能转型耦合度稳定在0.8~0.9,呈现完美协调,但耕地利用空间转型主要集中在北部且研究区耕地利用空间转型减弱,表明耕地数量和结构特征不断变化且渐趋协调。(3)研究区耕地利用功能转型主要集中在南部且耕地利用功能转型呈减弱趋势,表明耕地功能不断变化且渐趋协调。(4)耕地利用空间转型和功能转型在地理空间上较集聚。在空间转型方面,数量特征集聚性强于结构特征。在功能转型方面,生活功能集聚性最强,生态功能集聚性不明显。(5)综合转型重心先向南后向北移动,空间转型重心一直向北移动,功能转型重心先南移后北上。功能转型覆盖区主要集中在南部,空间转型主要集中在北部。

Based on the concept of rural revitalization and development and the concept of"people land industry"coordinated development,this paper constructs evaluation indexes to measure the cultivated land use in Shanghai,Zhejiang and Fujian for the time period from 2005 to 2020.Coupling degree analysis,spatial autocorrelation analysis and the method of standard deviation ellipse are applied to analyze the cultivated land use index and explore the temporal and spatial distribution and transfer path of cultivated land use transformation.The results show that:(1)From 2005 to 2020,the cultivated land use transformation index of all regions in the study area showed a downward trend,and the difference of cultivated land use was decreasing.(2)The coupling degree of spatial transformation and functional transformation in the study area is stable at 0.8~0.9,showing perfect coordination.However,the spatial transformation of cultivated land use is mainly concentrated in the north of the study area,and the spatial transformation is gradually weakened,indicating that the quantity and structural characteristics of cultivated land are changing and tend to be coordinated.(3)The function transformation of cultivated land use in the study area is mainly concentrated in the south,and the transformation is gradually weakened,indicating that the function of cultivated land is changing and tends to be coordinated.(4)The spatial and functional transformation of cultivated land use gather in geographical space,and the agglomeration of quantitative characteristics in spatial transformation is stronger than that of structural characteristics.In terms of function transformation,the agglomeration of life function is the strongest,and the agglomeration of ecological function is not obvious;(5)The center of gravity of comprehensive transformation moves first to the South and then to the north,the center of gravity of spatial transformation moves all the way to the north,and the center of gravity of functional transformation moves first to the South and then to the north.The coverage area of functional transformation is mainly concentrated in the south of the study area,and the spatial transformation is mainly concentrated in the north.