Abstract:Construction of urban ecological network is a guarantee of the effective functioning of urban ecosystem services, and the construction of a perfect ecological network optimizes the ecological pattern of urban environment. In combination with the Master plan of Xiong'an New Area, this study identified ecological source areas through the supply and demand of ecosystem services in Xiong'an New Area, the ecological network of Xiong'an New Area has been constructed based on the source, buffer, corridor, and node (SBCN) framework. In this framework, the method of minimum cumulative resistance (based on the driving factors of ecological source area and urban source) is used to obtain the cumulative resistance difference and form the space distribution in Xiong'an New Area. According to the cost distance and minimum path analysis, ecological corridors were generated in combination with the green belt distribution planned for Xiong'an New Area, and ecological nodes were identified at the intersections of two corridors, key point of important ecological function and vulnerability, and road junctions. The study concluded that: (1) the region's ecological source was mainly located in Baiyangdian, green spaces in parks and others. These green spaces can be divided into ecological source areas of water and forest, covering a total area of 728 km2. The urban area is located mainly in Rongcheng County and Xiong County in the east, with some scattered rural residential areas, covering area of 166 km2. (2) The spatial layout of the land in Xiong'an New Area would strengthen the construction of ecological corridors and improve the connectivity between ecological sources as well as between ecological sources and urban sources. The ecological corridors in Xiong'an New Area rely on river corridors and forest corridors. (3) Future ecological network should focus on construction of ecological nodes, such as the intersections of river corridors, the intersections of river corridors and urban areas, and the intersections of roads and ecological land, as well as the improvement of ecological function of ecological nodes.