PDF(Pubmed)
Abstract：
The ongoing climatic change, together with atmospheric pollution, influences the timing, duration and intensity of pollen seasons of some allergenic plant taxa. To study these influences, we correlated the trends in the pollen season characteristics of both woody (Fraxinus, Quercus) and herbaceous (Ambrosia) taxa from two pollen monitoring stations in Slovakia with the trends in meteorological factors and air pollutants during the last two decades. In woody species, the increased temperature during the formation of flower buds in summer and autumn led to an earlier onset and intensification of next year\'s pollen season, especially in Quercus. The increase of relative air humidity and precipitation during this time also had a positive influence on the intensity of the pollen season of trees. The pollen season of the invasive herbaceous species Ambrosia artemisiifolia was prolonged by increased temperature and humidity during the summer and autumn of the same year, which extended the blooming period and delayed the end of the pollen season. From the studied air pollutants, only three were found to correlate with the intensity of the pollen season of the studied taxa, CO - positively and SO2 and NO2 - negatively. It is important to study these long-term trends since they not only give us valuable insight into the response of plants to changing conditions but also enable the prognosis of the exacerbations of pollen-related allergenic diseases.
摘要：
持续的气候变化,再加上大气污染,影响时机，一些致敏植物类群花粉季节的持续时间和强度。为了研究这些影响，我们关联了两种木质(Fraxinus，来自斯洛伐克两个花粉监测站的Quercus）和草本（Ambrosia）类群，具有过去二十年来气象因素和空气污染物的趋势。在木本物种中，夏季和秋季花蕾形成过程中温度的升高导致明年花粉季节的提前发作和加剧，尤其是在Quercus。在此期间相对空气湿度和降水的增加也对树木花粉季节的强度产生了积极影响。同年夏秋两季温度和湿度的升高延长了入侵草本物种蒿的花粉季节,延长了花期，推迟了花粉季节的结束。从研究的空气污染物中，仅发现三个与所研究分类群的花粉季节强度相关，CO-正和SO2-和NO2-负。研究这些长期趋势很重要，因为它们不仅为我们提供了有关植物对变化条件的反应的宝贵见解，而且还能够预测花粉相关变应原性疾病的恶化。
