黄河流域甘肃段产业生态化空间演化及溢出机制

Spatial evolution and spillover effects of industrial ecologization of the Yellow River Basin in Gansu,China

构建产业生态化指数定量测度2005—2020年黄河流域甘肃段57个县域产业生态化发展水平并揭示其空间演化特征,采用空间杜宾模型验证其空间溢出效应并探析其空间传导机制。结果表明:黄河流域甘肃段产业生态化空间分异特征显著,呈“中心-外围”阶梯式扩散的空间格局。产业生态化空间辐射范围不断扩大,县域间空间自组织性和空间变异性不断增强,并在地理空间的各方向上随着与中心区域距离的扩大呈现出递减特征。产业生态化过程存在显著的正向空间溢出效应,产业发展水平、结构升级、发展活力及环境治理具有显著的正向促进作用,而资源消耗及污染排放具有抑制作用,通过交互影响与作用形成其空间传导路径与机制。

By constructing an industrial ecological index,the industrial ecological level could be measured in 57 counties in the Gansu section of the Yellow River Basin from 2005 to 2020.The spatial Dubin model is used to verify the spatial overflow effect and explore the spatial transmission mechanism.The results were as follows:The spatial differentiation pattern of''center-peripheral''gradient diffusion is significant.Industrial ecologization has significant spatial relevance,and the overall trend is transitioning to balance.The spatial radiation range of industrial ecologization is expanding,and the self-organization and spatial variability of industrial ecological space among counties continues to increase.The stepped terrain pattern gradually transitions to a gentle trend surface,whereas the radiation effect shows a decreasing characteristic in all directions of the geographical space with the expansion of the distance from the central area;There are significant positive spatial spillover effects on industrial ecologization,among which the development level,structural upgrade,and vitality of the industrial system and the environmental governance of the ecological environment system have obvious positive promoting effects,while the resource consumption and pollution emission of the ecological environment system have a certain inhibitory effect.The result of the interaction and effect of various factors and dynamics finally forms its spatial transmission path and mechanism.