Modeling of oak pollen dispersal on the landscape level with a mesoscale atmospheric model |
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Authors: | Silvio Schueler Katharina Heinke Schlünzen |
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Institution: | 1. Institute for Forest Genetics and Forest Tree Breeding, Federal Research Centre for Forestry and Forest Products, Sieker Landstr. 2, D-22927, Grosshansdorf, Germany 2. Department of Genetics, Federal Research and Training Centre for Forests, Natural Hazards and Landscape, Hauptstr. 7, A-1140, Vienna, Austria 3. Meteorological Institute, Center for Marine and Climate Research, University of Hamburg, Bundesstra?e 55, D-20146, Hamburg, Germany
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Abstract: | We present the extension and application of the mesoscale atmospheric meteorology model METRAS for dispersion of oak pollen.
We incorporated functions for pollen emission, pollen viability and pollen deposition into METRAS and simulated pollen dispersal
on a scale of up to 200 km. The basis of the simulations is a real landscape structure that includes topography, land use,
and the location and size of oak stands. We simulated the oak pollen dispersion of one single oak stand with an estimated
annual pollen production of 1 billion pollen grains/m2 forest surface on two exemplary days of the flowering season in 2000. Depending on the meteorological situation of the simulated
days, a pollen cloud with about 10 pollen/m3 may extend up to 30 km from the source. Downstream of the oak stand, approximately 1,000 pollen/m2 deposited up to a distance of 25 km, and lower amounts of pollen deposited up to 100 km away. These values of pollen concentration
and deposition lay within the range of published field studies. Overall, it is shown that mesoscale atmospheric models are
applicable to simulate pollen dispersal on the landscape level. |
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Keywords: | Quercus robur pollen dispersal pollen emission pollen production gene flow mesoscale model landscape level |
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