摘要
受码头建设的影响,北海铁山港榄根作业区附近的红树林湿地出现受损退化现象。为了恢复稳定良好的湿地生态,2021年9月在对该区域红树林及其生境进行调查采样的基础上,分析了红树林湿地的受损退化原因。结果表明,码头工程建设期间,高岭土悬浮物沉积或附着于红树林根部及叶片上,不仅严重影响植物呼吸和光合作用,而且致其根部腐烂进而导致死亡;码头建设导致的红树林湿地内水流减缓,以及因围填活动引起的局部滩面抬高也是红树林受损退化的原因。提出新增或拓宽现有潮汐通道、局部微地形改造,以及红树林造林恢复等生态修复措施,为沿海地区开展码头工程建设对红树林的影响研究与生态修复实践提供借鉴。
Due to the impacts of wharf construction,the mangrove wetland in the Langen working zone of the Tieshan Port in the Beihai Sea is damaged and degraded.In order to restore stable and good wetland ecology,the causes of the damage and degradation of the mangrove wetland are analyzed on the basis of the investigation and sampling of the mangroves and their habitats carried out in this area in September 2021.The results show that during the wharf construction,the Kaolin suspended matter deposited or attached to the mangrove roots and leaves,which not only seriously affects the respiration and photosynthesis of the plants,but also causes the roots of the plants to decay and then die.The slow water flow within the mangrove wetland caused by the wharf construction and the raising of local beach surface caused by the reclamation activities are also the reasons for the damage and degradation of the mangroves.In order to provide references for studying the impacts of the wharf construction in the coastal areas on the mangroves and for carrying out the ecological restoration,some ecological restoration measures are proposed,which include adding or widening the existing tidal channels,reforming the local micro-topography and restoring the afforestation of mangroves.
作者
李玫
熊红
陈玉军
蔡艳清
邓创发
李俊
LI Mei;XIONG Hong;CHEN Yujun;CAI Yanqing;DENG Chuangfa;LI Jun(Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China;Guangzhou Branch of CCCC Water Transport Engineering Design&Research Institute Co.Ltd.,Guangzhou 510221,China)
出处
《海岸工程》
2024年第3期206-216,共11页
Coastal Engineering
基金
国家自然科学基金项目(51879288)。
关键词
红树林修复
码头工程建设
高岭土悬浮物
潮汐通道
铁山港
mangrove restoration
wharf construction
Kaolin suspended matter
tidal channel
Tieshan Port
