海洋地质与第四纪地质2018，Vol.38Issue(1)：32-40,9.DOI:10.16562/j.cnki.0256-1492.2018.01.004
木兰溪河口及邻近海域春季水文环境特征及悬沙输移机制分析
Hydrological characteristics and suspended sediment transport mechanism in spring at the Mulan Estuary and its adjacent seas
摘要
Abstract
Based on the field observation data in spring of 2016 in the Mulan Estuary and its adjacent seas,hydrological environment factors,such as temperature,salinity and turbidity were analyzed.And the characteristics and mechanism of suspended sediment transport in the Nanri waterway were studied using the mechanism decomposition method.Results show that the changes in temperature and salinity in the Xinghua Bay and its adjacent seas in spring are jointly controlled by the Mulan River runoff,the Zhejiang-Fujian Coastal Current and the Taiwan Warm Current.The offshore water in southeast Xinghua Bay is dominated by Taiwan Warm Current characterized by high temperature and high salinity,while the nearshore water in the northwest of the bay is significantly affected by the Zhejiang-Fujian Coastal Current featured by low temperature and low salinity.Suspended sediment concentration in Xinghua Bay and its adjacent seas is relatively low.Offshore sediments can be transported into Xinghua Bay through the Nanri waterway,but the net sediment flux is quite limited,only 0.32 × 10-4 kg/(m · s).The advection and tidal pumping are the major mechanisms for net sediment transport in the waterway,the resuspension of bottom sediment is significant,and the shear diffusion effect cannot be ignored.关键词
木兰溪河口/兴化湾/水文环境/悬沙输移机制Key words
Mulan Estuary/Xinghua Bay/hydrological environment/suspended sediment transport mechanism分类
资源环境引用本文复制引用
赵金鹏,范代读,涂俊彪,张悦,刘伟..木兰溪河口及邻近海域春季水文环境特征及悬沙输移机制分析[J].海洋地质与第四纪地质,2018,38(1):32-40,9.基金项目
科技基础性工作专项“典型中小入海河流河口动力沉积地貌与环境本底数据调查”(2013FY112200) （2013FY112200）
中国东盟海上合作基金“长江三角洲与红河三角洲全新世沉积演化对比研究” （）
国家自然科学基金项目“全新世长江口低氧区形成与演化历史及控制机制”(41476031) （41476031）
