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首页> 外文期刊>Aerobiologia >Airborne pine (Pinus spp.) pollen in the atmosphere of Perugia (Central Italy): Behaviour of pollination in the two last decades
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Airborne pine (Pinus spp.) pollen in the atmosphere of Perugia (Central Italy): Behaviour of pollination in the two last decades

机译：佩鲁贾（意大利中部）大气中的空中松（Pinus spp。）花粉：最近两个十年的授粉行为

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摘要

The phenology of many species, which grow in temperate climate, is principally regulated by the temperature and the plants respond with variations in the beginning, in the duration and in the intensity of the various phenophases towards every climate change. We have analysed the data of Pinus pollination in Perugia, Central Italy, during last 2 decades (1982-2001), in a period during which the annual mean temperature significantly increased by about 0.8 ℃. The pine pollination started, on average, between the end of March and mid-April and ended in the last days of June, with a mean duration of 65 days. The start dates showed a significant negative correlation with the average air temperature in March and significant trends towards an earlier beginning of pollination by 18 days (-0.9 day/year) and a shorter duration of the pollen season by 10 days (-0.6 day/year) were found over the studied period. Moreover, the trend of the daily pollen counts showed, on average, an almost normal distribution, but the analysis of each yearly trend revealed significant differences correlated with the mean temperature during the pollen season. These observed trends in pine pollination suggest the use of aerobiological monitoring of this airborne pollen as indicator of temperature change in Central Italy over a relatively long period.
机译：在温带气候下生长的许多物种的物候学主要受温度调节，并且植物在朝向每个气候变化的各个表相的开始，持续时间和强度方面都有变化。我们分析了过去20年（1982-2001年）意大利中部佩鲁贾的松树授粉数据，在此期间年平均温度显着上升了约0.8℃。松树授粉平均开始于3月底至4月中旬，结束于6月的最后几天，平均持续时间为65天。开始日期与三月份的平均气温呈显着负相关，并且显着趋势是授粉开始提前18天（-0.9天/年），花粉持续时间缩短10天（-0.6天/年）。年份）被发现。此外，每日花粉计数的趋势显示平均而言几乎呈正态分布，但对每个年度趋势的分析都显示出与花粉季节平均温度相关的显着差异。这些在松树授粉中观察到的趋势表明，对这种空气传播的花粉进行了航空生物学监测，以此作为意大利中部在相对较长时期内温度变化的指标。

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