生态韧性视角下厦漳泉地区景观生态风险评估与管控OA

To cope with the ecological risks of rapid urbanization and climate change,based on the theory of ecological resilience,a landscape ecological risk assessment system of"potential-connectivity-human disturb-ance-resilience"is constructed.Integrating data on digital elevation models,annual average temperature,an-nual average precipitation,normalized difference vegetation index,and land use status,the analytic hierarchy process,spatial analysis,and landscape pattern analysis are used to evaluate the spatial differentiation of land-scape ecological risks in Xiamen-Zhangzhou-Quanzhou region in 2020,to identify ecological source areas and divide risk control zones.The results show that the regional risk in Xiamen-Zhangzhou-Quanzhou region ex-hibits a gradient pattern of"high in central urban areas and low in natural ecological zones".The primary dis-tributions of ecological source areas are Daiyun Mountain to Qingyuan Mountain and the Jiulong River to Jin-jiang River basin,accounting for approximate 40%of the total area.Accordingly,a systematic optimization scheme for the ecological security pattern is proposed,namely"hierarchical conservation of ecological sources-dynamic regulation of resistance surfaces-optimization of corridor networks",which enhances regional land-scape connectivity and resilience through the establishment of mountain sea corridors,water system corridors,and urban ventilation corridors.