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。
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 rides： the sediment with coarse size was worse to sort than small size; the lower the coefficient of skewness, the lower the peak was. In addition, the sketch map showing net sediment transport trend of the survey area was drawed based upon grain size trend analysis.
出处
《福建水产》
2008年第2期71-74,共4页
Journal of Fujian Fisheries
基金
福建省海洋与渔业局闽江口赤潮监控区
关键词
定海湾
沉积物
粒度
环境意义
Dinghai Bay
sediment
grain-size
environmental significance
