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福建定海湾沉积物类型及分布特征
引用本文:李正华.福建定海湾沉积物类型及分布特征[J].福建水产,2008(2).
作者姓名:李正华
作者单位:福州市海洋与渔业技术中心,福州市海洋环境监测站,福建,福州,350026
基金项目:福建省海洋与渔业局闽江口赤潮监控区资助项目
摘    要:2006年8月对定海湾海域沉积物粒度监测结果:该海域表层沉积物组分不含砾石,并以粉砂为主,海域表层沉积物类型以砂质粉砂(ST)、砂-粉砂-粘土(STY)和粘土质粉砂(YT)为主;该海域表层沉积物粒径分布,呈现由西南向东北变细的趋势;而且,该海域表层沉积物粒度参数的分布,具有一定对应性,其总体特征是,粒径越粗,分选越差,偏态系数越低,峰值也越低.另外,采用"粒度趋势分析"方法,绘制出该海域沉积物净输运趋势概示图.

关 键 词:定海湾  沉积物  粒度  环境意义

The types and distribution characteristics of the Sediment in the Dinghai Bay
LiI Zheng-hua.The types and distribution characteristics of the Sediment in the Dinghai Bay[J].Journal of Fujian Fisheries,2008(2).
Authors:LiI Zheng-hua
Institution:LiI Zheng-hua (Ocean , Fishery Technology Center of Fuzhou,Marine Environment Monitoring Station of Fuzhou,Fuzhou,Fujian,350026)
Abstract:The sediment grain-size of Fujian Dinghai Bay was monitored in August,2006.The types and distribution characteristics of the Sediment were analyzed.The results showed that the surface sediment is mainly composed of silt-sand without gravel,and it could be classified to three types: sandy silt,sand-silt-clay,and clayey silt.The grain size of the sediment decreased from southwest to northeast;the distribution characteristics of the grain size showed some rules: the sediment with coarse size was worse to sort ...
Keywords:Dinghai Bay  sediment  grain-size  environmental significance  
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