“蛟龙”穿海背后的生态密码

Core Viewpoint - The cross-sea interconnection project of Weizhou Island, a significant energy initiative in Guangxi, has successfully maintained environmental standards during its construction, ensuring the protection of marine ecosystems while completing the installation of a 44.8-kilometer submarine cable [1][2][3]. Group 1: Project Overview - The cross-sea interconnection project is the first 220 kV cross-sea interconnection project in the Beibu Gulf, with a total investment of approximately 858 million yuan [1]. - The project connects the 220 kV Dunhai Substation in Beihai to the 220 kV Weizhou Substation, with the most complex part being the laying of the submarine cable [1]. Group 2: Environmental Monitoring and Impact - Environmental monitoring reports indicate that the water quality in the surrounding sea area remains within the first-class standard, with turbidity and chlorophyll concentrations within normal ranges [1]. - During the cable laying process, the concentration of suspended solids in the water was maintained between 10-20 mg per liter, which is considered safe for marine life [4]. - The coral reef ecosystem showed no adverse effects from the construction, with sediment levels remaining within the tolerance range for corals [4]. Group 3: Construction Techniques and Innovations - Advanced technologies such as multi-beam sonar and directional drilling were employed to minimize environmental disturbance, reducing seabed disruption by 85% compared to traditional methods [3]. - A comprehensive protection construction plan was implemented, which included directional drilling and concrete interlocking pipes, significantly reducing the volume of dredging required by approximately 60,000 cubic meters [3]. Group 4: Ecological Compensation Measures - The project includes an ecological compensation plan for fishery resources, with an investment of millions of yuan aimed at restoring marine life, including the planned release of 37 million units of fish, shrimp, and shellfish [4]. - A full-cycle monitoring mechanism has been established to ensure the effectiveness of the ecological compensation efforts [4].