Abstract

We present the results from laser granulometry of a nanosized fraction of aerosol substance and from UV spectrometry of water washouts from different-age needles in four plant species. It is estimated how the hydrothermal conditions influence the time variations in morphometric indices of needles and contamination of their surfaces by phenolic compounds in the composition of secondary organic aerosols. We discuss how secondary organic aerosols are generated on the surfaces of different-age needles during efflorescence of phenolic compounds and their subsequent entry into the forest canopy during turbulent separation of the boundary layer from the leaf surface.

中文翻译：

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不同龄期针头中沉降气溶胶物质的粒度组成及酚类化合物的比例

摘要

我们展示了气溶胶物质纳米级部分的激光粒度测定和四种植物不同年龄针叶水冲洗的紫外光谱测定结果。估计了热液条件如何影响针的形态测量指数的时间变化及其表面被二次有机气溶胶组成中的酚类化合物污染。我们讨论了在酚类化合物风化期间如何在不同年龄的针叶表面产生二次有机气溶胶，以及在边界层与叶表面湍流分离期间它们随后进入森林冠层。