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首页> 外文期刊>Lake and reservoir management >Empirical estimation of non-chlorophyll light attenuation in Missouri reservoirs using deviation from the maximum observed value in the Secchi-Chlorophyll relationship
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Empirical estimation of non-chlorophyll light attenuation in Missouri reservoirs using deviation from the maximum observed value in the Secchi-Chlorophyll relationship

机译：实证估计non-chlorophyll光衰减在密苏里州水库使用从最大观测值的偏差Secchi-Chlorophyll关系

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摘要

A quadratic reference line delineates the maximum observed Sec-chi transparency across the measured range of algal chlorophyll (0.7-297 μg/L) in Missouri reservoirs. Deviations below maximum Secchi transparency were common (median = 45% of maximum, interquartile range between 35 and 57%) and are characteristic of water bodies with mineral turbidity. Subtracting the reciprocal of maximum Secchi from the reciprocal of measured Secchi provides an estimate of non-chlorophyll light attenuation (NCLA, m~(-1) = [1/Secchi] - [I/maximum Secchi]). Analyses of several datasets show most cross-system variation in this empirical estimate of NCLA is accounted for by non-algal seston measured gravimet-rically and as clay-sized particles. Residual variation is attributed to characteristics of the algal community and color. This simple approach can be applied directly, or with modification, to estimate NCLA in lakes and reservoirs when measurements of mineral par-ticulates are not available. The degree to which response variables, such as Secchi transparency, are less than the maximum is fundamental to our understanding of lake process and their management.
机译：二次引用的线则勾勒出最大值在测量观察Sec-chi透明度各种藻叶绿素(0.7 -297μg / L)密苏里州水库。西奇透明度(值= 45%的是很常见的最高四分位范围35 - 57%),是水体的特征矿产浊度。最大的海水透明度的倒数西奇提供non-chlorophyll的估计光衰减(NCLA, m ~(1) = - 1 /海水透明度[I /最大的海水透明度])。显示,多数跨系统的变化实证估计占NCLA的non-algal悬浮物gravimet-rically和计量泥级粒子。由于藻类的特征社区和颜色。直接应用,或修改估计NCLA在湖泊和水库测量的矿产par-ticulates不是可用。变量,如海水透明度的透明度,更少比最大的是我们的基础湖的理解和他们的过程管理。

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