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湖泊科学  2014 

太湖藻类水平漂移特征及其影响因素

DOI: 10.18307/2014.0304

Keywords: 太湖,原位观测,漂移速率,影响因素,竺山湾

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Abstract:

采用原位观测平台,研究分析了太湖竺山湾风速、湖流流速、波高以及藻类水平漂移特征及其影响因素,结果表明日间藻类水平漂移速率呈锯齿式交替特征,日内藻类水平漂移速率变化幅度大;藻类水平漂移速率与风速之间呈显著线性正相关;当0.02m<有效波高<0.1m时,藻类水平漂移速率与有效波高呈显著线性负相关,当有效波高>0.1m时,波浪会显著改变藻类运动方式,破坏藻类表层聚集形态;湖流对藻类水平漂移速率无显著性影响;藻类水平漂移方向受湖流流向和风向的共同作用;藻类水平漂移速率与风速、波高、湖流流速间关系可用多元线性方程表达,且拟合度良好,可为藻类水华预测模型构建提供依据.

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