OALib Journal期刊
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强壮前沟藻amphidiniumcarteraehulburt生消过程中水体总吸收特性研究
Keywords: 强壮前沟藻,生消过程,总吸收系数
Abstract:
?基于2011年7月藻类培养实验期间的实测数据研究了强壮前沟藻amphidiniumcarteraehulburt生消过程中水体的总吸收特性。结果表明,强壮前沟藻本次培养周期共21天,前15天为生长期,之后进入消亡期;整个生消过程中水体吸收光谱变化明显,未见440nm波段浮游藻类蓝光吸收峰,但675nm波段红光吸收峰突出,消亡期总吸收系数的日变化明显大于生长期,总吸收系数与叶绿素浓度的时间序列变化趋势一致;总吸收系数的波段关系良好,但不同生长时期相同波段的拟合曲线存在显著差别,消亡期的拟合曲线普遍高于生长期,且整体看来随波长增加,两曲线逐渐接近,到667、678nm波段时几乎重合;特征波段(440、675nm)的总吸收系数与叶绿素浓度存在较好的乘幂函数关系,拟合曲线与藻种的生长阶段有关,决定系数均在0.98以上。
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