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Intradiurnal fluctuation of pollen in La Plata, Argentina. Part Ⅰ, herbaceous pollen types

机译:阿根廷拉普拉塔花粉的内部波动。第一部分,草本花粉类型

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摘要

A pollen analysis was carried out on six herbaceous pollen types whose annual concentration represents a percentage higher than 0.3% in the atmosphere of the city of La Plata, Argentina, from July 1998 to June 2001. They are: Ambrosia, Cyperaceae, Chenopodiaceae-Amaranthaceae, Plantago, Poaceae and Urticaceae. Hourly patterns of the pollen types analysed with the intradiurnal daily index (IDI) could be grouped into three categories account the percentage that represent of pollen concentration registered during five hourly periods of the day. Group I includes pollen types that show a sharp peak in abundance gust one at hour of the day. Group Ⅱ is formed by pollen types that show high concentrations in more than one hourly band during the daylight. Group Ⅲ is characterized by the pollen types that show lower concentrations over a broad hourly band during the day.
机译:从1998年7月至2001年6月,对六种草本花粉类型进行了花粉分析,其年浓度在阿根廷拉普拉塔市的大气中所占的百分比高于0.3%。它们是:安布罗西亚,莎草科,藜科-ace菜科。 ,车前草,禾本科和荨麻科。可以将用日内每日指数(IDI)分析的花粉类型的小时模式分为三类,即代表一天中五个小时内记录的花粉浓度的百分比。第一组包括花粉类型,这些花粉类型在一天中的一个小时内显示出强烈的阵风高峰。 Ⅱ组是由花粉类型形成的,这些花粉类型在白天的一个多小时内显示出高浓度。 Ⅲ组的特征是花粉类型,白天在较宽的小时波段内浓度较低。

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