Impact of Local Grasslands on Wild Grass Pollen Emission in Bavaria, Germany

Impact of Local Grasslands on Wild Grass Pollen Emission in Bavaria, Germany

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, wil...

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Bibliographic Details
Published in:Land (Basel) Vol. 11; no. 2; p. 306
Main Authors: Jung, Stephan, Yuan, Ye, Stange Del Carpio, Maria, Pawlik, Thomas, Hartmann, Stephan, Estrella, Nicole, Oteros, Jose, Traidl-Hoffmann, Claudia, Damialis, Athanasios, Buters, Jeroen, Menzel, Annette
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-02-2022
Subjects:
aerobiology
Agricultural land
agriculture
allergy
Cereals
Correlation analysis
Correlation coefficient
Correlation coefficients
cultivation intensity
Digital mapping
Emission analysis
Emissions
Flowers & plants
Grasses
grassland management
Grasslands
Hay fever
Land area
Land use
Pollen
pollen level
Spatial distribution
Wind direction
Bavaria Germany
Europe
Germany
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Summary: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.
ISSN:2073-445X
2073-445X
DOI:10.3390/land11020306