星期二 2025年 11月 18日
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中国海平面年均上升3.3毫米 速度高于全球水平

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中国沿海海平面持续上升,年均速度高于全球水平。

中国自然资源部海洋预警监测司日前发布的《中国海平面公报》显示,中国沿海海平面变化总体呈波动上升趋势,自1980年至去年,年均上升速度为3.3毫米,高于同时段全球平均水平,并指去年海平面较1993年至2011年定为的“常年时段”高出48毫米,而近7年则处于过去40年以来的高位。

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据了解,中国海平面持续偏高,其长期累积效应直接造成滩涂损失、低地淹没和生态环境破坏,导致风暴潮、滨海城市洪涝、咸潮、海岸侵蚀和海水入侵等灾害愈加严重;同时沿海地区的地面沉降导致相对海平面上升,加大海岸带灾害的风险。

公报建议,为有效应对海平面上升影响,应加强科学调查监测和评估,优化海岸带空间布局,加强生态保护与修复。

另同日公布的去年《中国海洋灾害公报》指出,内地海洋灾害以风暴潮、海浪、海水和海岸侵蚀等灾害为主,各类海洋灾害共造成直接经济损失达逾47亿元人民币(约30亿令吉);另去年共发现36次赤潮,累计面积1046平方公里,而海水入侵、土壤盐渍化、咸潮入侵等缓发性海洋灾害仍然严重,次数有所加大。

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