中文摘要：

在沿海的环境，好谷物的沉积经常聚集进大、多孔的絮凝物。电磁的当前的米(EMCM ) 和在散布的 Situ 和 Transmissometry (LISST 圣) 的激光在福建省在 Luoyuan 海湾的一块 Spartina alterniflora 沼泽地以内被部署了，中国，测量在 15 之间的当前的速度，絮凝物尺寸和安定速度和 2008 年 1 月 22 日。在观察期间，近床的水被收集以便获得推迟的沉积集中(SSC ) 和成分谷物尺寸。数据表演那：(1 ) nearbed 水流速度在边在中央 Spartina alterniflora 沼泽地和 0.112.5 cm/s 从 0.1 ～ 5.6 cm/s 变化；(2 ) SSC 从 47 ～ 188 mg/dm3 变化。成分谷物的吝啬的谷物尺寸从 7.0 ～ 9.6 m，和尺寸(MFS ) 从 30.4 ～ 69.4 m 改变的吝啬的絮凝物变化。在吝啬的絮凝物尺寸和安定速度之间的关系能是被描述：w s=ad b 在哪个 w s 是解决速度(mm/s ) 的絮凝物， and b 是系数。解决速度的絮凝物从 0.17 ～ 0.32 mm/s 变化，与 0.26 mm/s 的吝啬的价值，并且在洪水潮期间解决速度的絮凝物在 ebb 潮期间比那高。当前的速度和 SSC 是控制解决速度的絮凝过程和絮凝物的主要因素。

英文摘要：

In coastal environments, fine-grain sediments often aggregate into large and porous flocs. ElectroMagnetic Current Meters （EMCM） and Laser In Situ Scattering and Transmissometry （LISST-ST） have been deployed within a Spartina alterniflora marsh of the Luoyuan Bay in Fujian Province, China, to measure the current velocity, the floc size and the settling velocity between 15 and 22 January 2008. During the observations, the near-bed water was collected in order to obtain the suspended sediment concentration （SSC） and constituent grain size. Data show that： （1） the nearbed current velocities vary from 0.1 to 5.6 cm/s in the central Spartina alterniflora marsh and 0.1–12.5 cm/s at the edge; （2） the SSCs vary from 47 to 188 mg/dm 3 . The mean grain size of constituent grains varies from 7.0 to 9.6 μm, and the mean floc sizes （MFS） vary from 30.4 to 69.4 μm. The relationship between the mean floc size and settling velocity can be described as： w s =ad b , in which w s is the floc settling velocity （mm/s）, a and b are coefficients. The floc settling velocity varies from 0.17 to 0.32 mm/s, with a mean value of 0.26 mm/s, and the floc settling velocity during the flood tide is higher than that during the ebb tide. The current velocity and the SSC are the main factors controlling the flocculation processes and the floc settling velocity.