秦皇岛沿岸海平面变化与地壳升降
Qinhuangdao sea level change and earth crust rise and subsidence
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摘要: 本文研究发现,近43年来秦皇岛沿岸相对海平面变化呈总体下降趋势,其变化速率为-2.1~-2.4mm/a,经地壳升降观测资料修正后,确定海平面变化速率为-1.3~-1.6mm/a,并分岸段讨论了相对侮平面变化的年速率.由此证明,秦皇岛沿海海岸侵蚀并非由海平面变化引起.预计未来10余年内,海平面变化将不会对海岸带经济发展构成威胁.Abstract: It is shown that the general trend of sea level change has been subsided in recent 43 a in Qinhuangdao,its rate of change is -2.1~-2.4mm/a.After correcting the sea level change rate caused by the earth crust rise,subsidence rate is -1.3~-1.6mm/a,and based on coast sectioning relative annual change rate is known.
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Key words:
- Sea level /
- annual change rate /
- earh crust
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周夭华,陈宗篇,田晖等.近几十年来中国沿岸海面变化趋势的研究.海洋学报,1992,14(2):1-8 黄立人等.中国沿海海面变化的均衡基准.地展地质,1991,13(1):1-7 于道水等.中国沿岸现代相对海平面上升加剧.海洋地质与第四纪地质,1995.15(3):35-42 胡惠民等.中国东部沿海地区的近代地壳运动.中国气候与海面变化研究进展(二)(施雅风主编),北京:海洋出版社,1991,77-79 -
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