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Pollen from tree and shrub taxa in the atmosphere of Caxias do Sul (Rio Grande do Sul, Brazil)

机译:南卡希亚斯(巴西南里奥格兰德州)大气中的树木和灌木类群的花粉

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摘要

An aerobiological study has been carried out in the region of Caxias do Sul in southern Brazil. Pollen monitoring was performed from January 1, 2001 through to December 31,2002. A total of 30,469 pollen grains were collected during this period, and 40 pollen types were identified; of these, 23,389 pollen grains, representing 29 pollen types, originated from tree and shrub taxa. The maximum pollen concentration was registered in August 2001 and October 2002. In the study area, the pollen type Mimosa scabrella (18.8%) was much more abundant than all of the pollen types from tree and shrub taxa, such as: Urticaceae (18.4%), Myrtaceae (10.2%), Cupressaceae (7.7%), Myrsine (4.8%), Sorocea (3.9%), Pinaceae (2.9%), Asteraceae (2.2%) and Ricinus (2.1%). These nine pollen types accounted for the largest pollen concentrations of all the tree and shrub taxa. The pollen types Carya, Melastomataceae, Mimosa scabrella, Myrsine and Sorocea are reported for the first time in an aerobiological study in Brazil.
机译:在巴西南部的Caxias do Sul地区进行了一项航空生物学研究。从2001年1月1日至2002年12月31日进行花粉监测。在此期间,总共采集了30469个花粉粒,鉴定出40种花粉类型。其中23,389个花粉粒(代表29种花粉类型)来自树木和灌木类群。最高花粉浓度记录在2001年8月和2002年10月。在研究区域,花粉型含羞草(18.8%)比所有树木和灌木类植物的花粉类型丰富得多,例如:荨麻科(18.4%) ),桃金娘科(10.2%),柏科(7.7%),肉豆蔻(4.8%),Sorocea(3.9%),松科(2.9%),菊科(2.2%)和蓖麻(2.1%)。这九种花粉类型占所有树木和灌木类群中最大的花粉浓度。巴西的一项航空生物学研究首次报道了花粉类型Carya,Melastomataceae,Mimosa scabrella,Myrsine和Sorocea。

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