琴澳生態安全格局的構建及協同優化研究

The Master Plan for the Development of the Guangdong-Macao In-Depth Cooperation Zone in Hengqin proposes that by 2024, a preliminary integrated development framework between Hengqin and Macao will be established, playing a supportive role in promoting moderate economic diversification in Macao. This study adopts ecological and urban planning methodologies, using data from 2020 to 2024 to identify ecological security elements and to explore the construction of ecological spatial patterns during the integration process. The findings indicate that the total area of ecological patches in Macao is 65.28 km², which is smaller than that in Hengqin, revealing an imbalance in their spatial distribution. Both the number and total length of ecological corridors show a declining trend, decreasing by approximately 5.26% and 12.52%, respectively, which also reflects uneven spatial distribution. The number of ecological pinch points has significantly increased from 5 to 22, with clustering effects strengthened at the Cotai–Hengqin boundary and within Hengqin; however, ecological interactions between the Macao Peninsula and Hengqin remain insufficient. The number of ecological barrier points rose from 15 to 18, with new barriers mainly located in Cotai and parts of Hengqin, highlighting the adverse impact of urban expansion on ecological connectivity. Based on these findings, the study proposes three collaborative optimization strategies: enhancing the balance of ecological patches, improving the connectivity of ecological corridors, and bolstering the resilience of ecological nodes.