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First report of airborne pollen in Santa Rosa, La Pampa, Argentina: a 2-year survey

机译：阿根廷拉潘帕市圣罗莎（Santa Rosa）的空气传播花粉的首次报告：为期2年的调查

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摘要

The aim of this study was to determine the qualitative and quantitative composition of the airborne pollen of Santa Rosa city, La Pampa (Argentina), and to analyse the seasonal behaviour of the pollen types that have the highest representation in the atmosphere. The city, with temperate climate, is located in a cultivated area that corresponds phyto-geographically to a xerophytic forest limiting with grasslands. The pollen sampling was performed using a Hirst-type volumetric spore trap located in the urban centre of the city, 15 m above ground level, from July 2007-June 2009. The annual pollen index was 51,647 pollen grains. The airborne pollen consisted of 73 pollen types, 42 of woody origin represented 66 % of the total and with winter-spring seasonality and 31 were of herbaceous origin, which represented 30 % of the total and with spring-summer seasonality. The composition of the woody airborne pollen reflected the formation of urban vegetation, consisting mainly of exotic taxa from tree species used in urban tree alignment. The most abundant types were as follows: Cupressaceae, Fraxinus, Ulmus, Olea europaea, Styphnolobium japonicum, Myrtaceae, Pinaceae, Platanus, Celtis- Morus and Populus. Native components such as Condalia microphylla were also found, indicating the 'Espinal' phytogeographical province that was typical of the area. The most abundant herbaceous airborne pollen types, in descending order, were as follows: Poaceae, Amaranthus-Chenopodia-ceae, Urticaceae, Brassicaceae and Asteraceae. The emission sources of these pollen types were weeds that grew spontaneously in parks, waste grounds and flower beds of the city.
机译：这项研究的目的是确定拉桑帕（阿根廷）圣罗莎市的空中花粉的定性和定量组成，并分析在大气中具有最高代表性的花粉类型的季节性行为。这座城市气候温和，坐落在一个种植区，在植物地理上对应于一个以草原为界的旱生森林。从2007年7月至2009年6月，使用位于城市中心，离地面15 m的Hirst型体积孢子阱进行花粉采样。年花粉指数为51,647个花粉粒。空气传播的花粉由73种花粉组成，其中42种木质花粉来源占总数的66％，且具有冬春季节，而31种草本类花粉则占总数的30％，且具有春夏季节。木质空中花粉的成分反映了城市植被的形成，主要由城市树木调整中所用树种的外来生物分类组成。最丰富的类型如下：柏科，水曲柳，榆树，欧洲油橄榄，日本睡草，桃金娘科，松科，悬铃木，Celtis-桑属和胡杨。还发现了天然成分，例如小叶康达利亚（Condalia microphylla），表明该地区具有典型的“ Espinal”植物地理学省份。空气中花粉含量最高的草本花粉类型按降序排列如下：禾本科，A菜-藜科-禾本科，荨麻科，十字花科和菊科。这些花粉类型的排放源是在城市的公园，荒地和花坛中自发生长的杂草。

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  • 来源
    《Aerobiologia》 |2014年第3期|293-305|共13页
  • 作者

    V. E. Caramuti; O. A. Naab; M. G. Murray;

  • 作者单位

    Facultad de Agronomia, Universidad Nacional de La Pampa, Ruta Nac. 35, km 334, 6300 Santa Rosa, La Pampa, Argentina;

    Facultad de Agronomia, Universidad Nacional de La Pampa, Ruta Nac. 35, km 334, 6300 Santa Rosa, La Pampa, Argentina;

    Laboratorio de Diversidad de Plantas Vasculares, Departamento de Biologia, Bioquimica y Farmacia, Universidad Nacional del Sur and INBIOSUR (CONICET-UNS), San Juan 670, 8000 Bahia Blanca, Buenos Aires, Argentina;

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  • 正文语种 eng
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  • 关键词

    Airborne pollen; Urban monitoring station; Volumetric sampler; Native species; Argentina;

    机译：空中花粉城市监测站;体积采样器;本地物种;阿根廷;

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