经过25天海洋环境监测和样本分析，1月9日，广西海洋科学院相关监测报告显示，南方电网220千伏涠洲岛跨海联网工程（以下简称跨海联网工程）在 海缆敷设施工过程中，严格执行环保标准，周边海域表层海水浊度、叶绿素浓度处于正常环境波动范围，海水水质维持第一类标准，珊瑚礁生态系统结构完 整、功能正常。 跨海联网工程是北部湾首个220千伏跨海联网工程、广西重大能源项目，由南方电网广西电网公司投资建设，总投资约8.58亿元。工程自北海220千伏墩 海变电站起，至220千伏涠洲变电站止，其中最复杂、最关键的环节就是敷设44.8公里的海底电缆。 2025年12月31日，这条承载着涠洲岛能源保障重任的钢铁"蛟龙"，历经16个日夜的艰苦奋战，成功穿越北部湾海底，圆满完成海缆敷设施工任务。 在此过程中，守护碧海蓝天是建设团队必须满分作答的"考题"——重达7000多吨的海缆在海底穿行，需要途经北部湾二长棘鲷长毛对虾国家级水产种质 资源保护区，并穿越涠洲岛周边珊瑚礁。 海缆施工期间，潜水员下海采集样本。王欣 摄 "我们在施工前运用多波束、侧扫声呐、浅地层剖面仪等设备，给海底电缆敷设的路由做了细致的'CT'扫描，全面摸底海洋情况。"据跨海 ...

Core Viewpoint - The cross-sea interconnection project of the Southern Power Grid in Guangxi has successfully maintained environmental standards during its construction, ensuring minimal impact on the marine ecosystem [1][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 RMB [1]. - The project involves laying 44.8 kilometers of submarine cables, which is considered the most complex and critical part of the construction [1]. Group 2: Environmental Monitoring and Impact - During the construction, the marine environment monitoring team reported that the water quality remained at Class I standards, with turbidity and chlorophyll concentrations within normal fluctuation ranges [1][4]. - The construction utilized advanced techniques such as multi-beam sonar and directional drilling to minimize seabed disturbance by 85% compared to traditional methods [3][4]. - The concentration of suspended solids in the water was maintained between 10 mg/L and 20 mg/L, which is considered safe for marine life [4]. Group 3: Ecological Compensation Measures - The project has implemented an ecological compensation plan with an investment in the tens of millions, releasing 37 million units of fish, shrimp, and shellfish for resource restoration [5]. - Continuous monitoring and protection of the marine environment are part of the project, establishing a benchmark for integrated ecological compensation in China [5].