Abstract: To solve the problems of ecological fragmentation and insufficient landscape connectivity in mining cities,and construct a regional ecological barrier in the central and northern parts of Anhui Province,this study selected mining counties in Huainan City that involve coal mines as the research area. Based on morphological spatial pattern analysis (MSPA) and landscape connectivity assessment methods,the ecological source areas were systematically identified,and an ecological corridor network was constructed using the minimum cumulative resistance model (MCR). Spatial optimization strategies were adopted to improve the efficiency of the ecological network. The results showed that:① A total of 30 ecological source areas and 63 potential ecological corridors were identified in the study area,with a total area of 169. 33 km 2 ,showing a distribution pattern of clustering in the central and western regions and scattered in the northern and southern regions;② The ecological resistance surface in the research area exhibits significant spatial heterogeneity,with high resistance areas concentrated in the coal mining subsidence areas along the Huai River and the central urban development core areas;③ By adding 6 strategic ecological source areas,constructing 23 compensation corridors,and repairing 23 key obstacle nodes,the ecological network structure was optimized,and the network closure index (α),connectivity index (β),and connectivity rate (γ) were increased by 0. 143,0. 289 and 0. 093,respectively. This study can provide reference and theoretical basis for optimizing the ecological network system,national spatial ecological restoration,and landscape pattern optimization of coal mining related counties and even mining cities in Huainan City. 

Key words: mining cities, ecological network, morphological spatial pattern analysis, minimum cumulative resistance model,connectivity analysis