Urbanization is the development trend of all countries in the world, but it has caused considerable ecological problems that need to be alleviated by building ecological security patterns. This study took Ningbo as an example to construct and optimize an ecological security pattern. We analyzed land use types, normalized difference vegetation index, and landscape connectivity for ecological sources selection. In constructing the resistance surface, we considered natural and socio-economic factors. On this basis, we identified ecological corridors based on a minimum cumulative resistance model. Finally, the ecological security pattern was optimized through space syntax. Results showed that Ningbo has 18 ecological sources, with an area of 3,051.27 km² and 29 ecological corridors, with a length of 1,172.18 km. Among them, 11 are first-level, 10 are second-level, and 8 are third-level corridors. After optimization, the area and protection cost of the ecological security pattern were significantly reduced, which can effectively alleviate the trade-off between ecological protection and economic development. This research can provide a reference for the construction and optimization of ecological security patterns and has reference significance for ecological protection in rapidly urbanized areas.

中文翻译：

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基于空间句法分类的生态安全格局的构建与优化-以宁波为例

城市化是世界上所有国家的发展趋势，但它引起了相当大的生态问题，需要通过建立生态安全模式来缓解。本研究以宁波为例，构建并优化了生态安全格局。我们分析了土地利用类型，归一化植被指数和景观连通性，以供选择生态资源。在构造阻力面时，我们考虑了自然因素和社会经济因素。在此基础上，我们基于最小累积阻力模型确定了生态走廊。最后，通过空间语法优化了生态安全模式。结果表明，宁波有18个生态源，面积3,051.27 km ²29条生态走廊，全长1,172.18公里。其中，第一层有11条，第二层有10条，第三层有8条走廊。优化后，生态安全格局的面积和保护成本大大降低，可以有效缓解生态保护与经济发展之间的取舍。该研究可为生态安全模式的构建和优化提供参考，对快速城市化地区的生态保护具有参考意义。