| 摘要: |
| 以渤海湾西岸这一典型淤泥质海岸为背景,从研究古气候环境出发,利用相关考古资料和前人的成果,重建渤海湾西岸全新世以来的气候环境,得到渤海湾的气候变化情况.通过分析孢粉化石资料,初步恢复渤海湾地区4个特征位置的古气候、古环境.针对渤海海域水环境,建立距今2500～2000年前、距今1000年前和公元2004年的渤海二维潮流数学模型,通过分析流场变化构建出从古至今海岸变迁演变过程(冲淤演变).研究古气候环境变化与海岸变迁的关系,探索古气候环境影响下的海岸变迁的内因和外延,综合古气候变化、海平面变化等影响因素,总结得出渤海湾海岸古气候环境(温度、降水、潮流风浪等)对海岸变迁的影响,并对未来海岸线的变化趋势进行预测. |
| 关键词: 渤海湾 古气候恢复 气候变化 海岸变迁 |
| DOI： |
| 分类号:TV148 |
| 基金项目:国家自然科学基金创新研究群体科学基金(51021004); 天津市科技计划项目(应用基础与前沿技术,编号:11JCYBJC03200) |
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| Research of paleoenvironment and its impact oncoastline evolvement in Bohai Bay |
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BAI Yu-chuan,YANG Yan-jing,WANG Jing-wen
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BAI Yu-chuan,YANG Yan-jing,WANG Jing-wen(Institute of Sediment in River and Coast Engineering,Tianjin University,Tianjin 300072,China)
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| Abstract: |
| Based on the fact that the west coast of Bohai Bay is a typical muddy coast,paleoclimate and paleoenvironment are both studied.This paper makes an analysis of the pollen fossil according to the relevant archaeological data and related research results of Bohai Bay region and makes a preliminary reconstruction of paleoclimate of the region since Holocene,then the climate changes are obtained.This paper makes an analysis of the pollen fossil of Bohai Bay region and makes a preliminary recovery of four typical... |
| Key words: Bohai Bay restoration of paleoclimate paleoclimate changes coastline evolvement |
