The relationship between the flowering phenophase and airborne pollen of Betula in Galicia (N.W. Spain)
The relationship between the flowering phenophase and airborne pollen of Betula in Galicia (N.W. Spain)
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DOI：
10.1023/a:1014987325946
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发表时间：
2002-03-01
期刊：
影响因子：
2
通讯作者：
Seijo, Carmen
中科院分区：
文献类型：
--
作者：
Jato, Victoria;Mendez, Jose;Seijo, Carmen
本研究的目的是研究西班牙西北部加利西亚桦树的物候行为，并研究桦树花粉曲线与开花物候期的关系。从分布在不同海拔和地理位置的桦树9个居群中各选3棵。对桦树的花期进行了物候观察。环境因素，如雾的频率、纬度和地形位置、海洋的接近程度、太阳照射程度和海拔高度，导致被调查种群之间的物候差异。加利西亚桦树花粉产粉指数与7个监测站的空气生物学数据的相关性表明，在大多数物候观测站中，最高浓度记录的时间几乎与开花时间同步。为了对桦树花粉在大气中的有氧生物学数据提供适当的解释，还应考虑到其他因素，如运输和反射。
The aim of this work was to investigate the phenological behaviour of Betula in Galicia, NW Spain, and to examine the relationship between the Betula pollen curves and the flowering phenophase. Three trees were chosen from the each of nine populations of Betula located at different altitudes and phytogeographic positions. Phenological observations of the flowering periods of Betula were made in each of them. Environmental factors such as frequency of mist, latitudinal and topographic position, proximity of the ocean, degree of solar exposure, and altitude result in phenological differences between the investigated populations. The correlation between the Pollinic Production Index of Betula pollen in Galicia and the aerobiological data of the seven monitoring stations showed that the period in which the highest concentrations were registered was almost synchronous with the flowering times at most of the phenological stations studied. Other factors such as transport and reflotation should also be taken into account to provide an adequate interpretation of the aerobiological data of Betula pollen in the atmosphere.