本文分析了中国沿海岩石圈动力学的基础特征, 指出中国东部沿海地质环境与灾害存在南北分异的格局, 阐述了沿海区域工程地质环境的基本规律, 并通过全球及中国近百年海平面变化, 以及人类工程活动对河口海岸地质环境影响的分析, 对沿海地区未来的地质环境与灾害趋向做了初步评估, 并认为中国沿海21世纪的环境与发展将面临严峻的挑战, 特别是环渤海地区。最后, 对影响沿海区域发展的若干问题进行了初步探讨并提出了几点建议。
After a brief discription of geological structure of China coastal zone, the authors suggest that the geodynamic system since the Cenozonic Era fundamentally determinedthe different paterns from the south to the north in the coastal geological environment and disasters in eastern China. More over, the general features of engineering geological environment in the coastal area and the problems concerned during engineering construction are expounded in the paper. A primary assessment of future tendency of geological environment and disasters in the coastal area, especially in three deltaes regions, i. e.Yellow River, Yangtze River and Zhujiang River deltaes, is made on the basis analysisof global sea level changes as well as those in China coastal zone over the past 100 years,the regulavities of crust morement, and the impact of human engineering activities on geological environment in the coastal zone of river mouths. Therefore, it is evident that the environment and the sustainbale development in China coastal areas, espacially in the Bobal Rim in the 21st Century will face to severe challenges. According to the distribution of natural resources and geological-geographical environment features, and the needs for sustainable development strategy in the future, several countermeasures and suggestions are set forth.