文章基本信息

标题：Impact of Local Grasslands on Wild Grass Pollen Emission in Bavaria, Germany
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作者：Stephan Jung ; Ye Yuan ; Maria Stange Del Carpio 等
期刊名称：Land
印刷版ISSN：2073-445X
出版年度：2022
卷号：11
期号：2
页码：306
DOI：10.3390/land11020306
语种：English
出版社：MDPI, Open Access Journal
摘要：Meteorological conditions and the distribution of pollen sources are the two most decisive factors influencing the concentration of airborne grass pollen. However, knowledge about land-use types, their potential pollen emission, and the importance of local sources remains limited. In this study, wild grass pollen concentrations from 27 stations in Bavaria, Germany, were linked to potential pollen within a 30 km radius. Agricultural grass pollen sources were derived from the InVeKos database, which contains detailed information on agricultural land-use types and their spatial distribution. Non-agricultural grassland was identified by OpenStreetMap. Further source classification was conducted using a cultivation intensity indicator and wind direction. We show that the grassland percentage and pollen concentrations, specified as annual pollen integral and pollen peak vary strongly between pollen stations. Correlation analyses indicated that the impact of the grassland on pollen concentration was greater within 10 km of the pollen traps. At greater distances, the correlation coefficient between the grassland percentage and pollen indicators steadily declined.