黄河三角洲高效生态经济区海岸带地貌环境特征及发育模式

The Topographical environment characteristics and developmental patterns of Coastal Zone in the Yellow River Delta Efficient Ecological Economic Zone

摘要:

黄河三角洲高效生态经济区是具有国家战略地位的重要生态经济区，该地区的海岸带地处海陆交接地带，属于陆缘海海岸带，生态环境脆弱，区域海岸带地形地貌系统性阐述甚少。在开展该区域生态地质环境调查的基础上，结合实际调查情况及以往文献的研读，对该地区海岸带地形地貌、岸滩地貌类型及特征进行了系统性归纳总结。整个黄河三角洲高效生态经济区的海岸带地貌分黄河三角洲粉砂淤泥质海岸、莱州湾南岸潍北平原区粉砂淤泥质海岸、莱州砂质海岸3个部分。岸滩类型分为黄河三角洲岸段冲淤平衡潮滩、侵蚀潮滩、淤积潮滩3种及莱州湾岸段侵蚀潮滩及侵蚀砂质海滩2种。

Abstract:

High efficiency ecological economic zone in the Yellow River Delta is an important ecological economic zone with national strategic position. The coastal zone is located in land and sea transfer area, which belongs to the continental marginal sea and coastal zone. The ecological environment is fragile. The systematic descriptions of regional coastal geomorphology and beach landform is a few. Based on the investigation of ecoological environment in this area, combining with actual investigation and the past literatures, geomorphology, coastal landform and characteristics of the coastal zone in this area have been summarized systematically. Coastal landform of efficient ecological economic zone in the Yellow River Delta can be divided into three parts: the Yellow River delta silty coast, silty mud coast in Weibei plain in the south of Laizhou Bay, and sandy coast in Laizhou Bay. The beach types can be divided into coastal sedimentation balance tidal flat, eroded tidal flat, silt tidal flat in the Yellow River Delta, and eroded tidal flat and sandy eroded tidal flat in Laizhou Bay.