2000~2020年长江经济带水生态空间格局变化及其影响要素

Evolution characteristics and influencing factors of hydro-ecological space pattern in the Yangtze River Economic Belt from 2000 to 2020

面向国土空间用途管制需求构建水生态空间分类体系,基于空间转移矩阵和空间计量模型实证研究2000~2020年长江经济带水生态空间演化特征与影响因素,弥补水生态空间在国土空间规划语境下长时间､大尺度研究中的缺失.研究发现:近20年长江经济带水生态空间整体规模增加2076.08km2,上游和下游地区增加显著,但中游地区规模锐减;东部沿海地区及中部以武汉､长沙､南昌为核心的“中三角”区域城镇空间对水生态空间的侵占严重;水生态空间和农业空间的交叉转换最为显著,是长江经济带水生态空间转换的主导类型;水生态空间同时受到自然地理和社会经济的综合影响,不同因素在不同演化方向上的作用强度存在显著差异.

Using the spatial transfer matrix and spatial econometric model,this research aims to explore the evolution characteristics and influencing factors of hydro-ecological space in the Yangtze River Economic Belt from 2000 to 2020,and fleshes out the understanding of long-term and large-scale research of hydro-ecological space in the context of territorial spatial planning.The results show that in the 20 years between 2000 and 2020,the overall scale of the hydro-ecological space in the Yangtze River Economic Belt had increased by 2076.08km2,with a significant scale increase in upstream and downstream regions while a sharp scale drop in the middle reaches.The urban space of the eastern coastal areas and the central areas,including Wuhan,Changsha,Nanchang,which were recognized as the core of the'Central Triangle'region,have occupied the hydro-ecological space severely;the most significant conversion is hydro-ecological space and agricultural space,which was the major type of land use conversion in the Yangtze River economic belt;Hydro-ecological space was affected by both natural geographical and socio-economic factors,showing a significant difference in the effects of influencing factors on the hydro-ecological space in various evolutionary directions.