黄河三角洲滨海湿地的区域自然灾害风险

黄河三角洲是中国典型的滨海河口湿地，具有重要的生态和经济意义。该区域自然灾害频繁，海岸侵蚀、海面上升、风暴潮和黄河断流等主要灾害风险因子之间密切相关。在它们的共同作用下，黄河三角洲滨海湿地面积不断减少，地表结构遭到破坏，生态特征发生改变，生态环境持续恶化，导致滨海湿地不断损失和退化。应从系统的角度认识黄河三角洲滨海湿地与区域自然灾害的关系，科学对待并切实缓解滨海湿地的损失和退化。

Regional natural disaster risk of coastal wetland in Yellow River Delta

Yellow River Delta is a typical coastal wetland in China, and it has ecological and economic significance. Natural disasters occur frequently in this area, such as coastal erosion, sea level rise, storm surge and break-flow of Yellow River, etc. They correlate closely each other. With their impact together, the coastal wetland area reducing, surface structure destroying, ecological characteristic changing, eco-environment deteriorating and so on have happened in Yellow River Delta. They lead to loss and degradation of coastal wetland. The relationship between coastal wetland and natural disasters in Yellow River Delta should be recognized systematically, and loss and degradation of the coastal wedand should be abated practically.