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椒江河口悬沙浓度垂向分布和泥跃层发育

, PP. 58-69

Keywords: 河口最大混浊带,三层结构,泥跃层

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Abstract:

论述了椒江河口粘性细颗粒泥沙洪、枯季及大、小潮悬沙浓度分布.椒江河口水体高度混浊,近底层悬沙浓度可达71kg/m3以上.在河口最大混浊带,小潮期水体层化现象明显,悬沙浓度垂向分布呈三层结构,即活动悬沙层、泥跃层和浮泥层.泥跃层是水体中悬沙浓度分布剧变层,梯度大.在河口咸、淡水互相作用下,悬沙浓度大于3kg/m3、盐度在4~16及水流速度中等的条件下泥跃层发育.

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