Modelling the UV-exposure within a plant stand during a vegetation period
Plants are constantly exposed to solar radiation. Thus, the observed raised levels of UV-radiation lead also to a raised exposure for plants. In the recent years, so-called 'non-parasitic leaf spots' (NPLS) have led to yield losses for barley of up to 40 %. It is assumed that this disease...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Borntraeger
2005-05-01
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| Series: | Meteorologische Zeitschrift |
| Online Access: | http://dx.doi.org/10.1127/0941-2948/2005/0013 |
| _version_ | 1797320694995877888 |
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| author | Jan H. Schween Peter Koepke |
| author_facet | Jan H. Schween Peter Koepke |
| author_sort | Jan H. Schween |
| collection | DOAJ |
| description | Plants are constantly exposed to solar radiation. Thus, the observed raised levels of UV-radiation lead also to a raised exposure for plants. In the recent years, so-called 'non-parasitic leaf spots' (NPLS) have led to yield losses for barley of up to 40 %. It is assumed that this disease is caused by raised UV-radiation levels. For this reason a model has been developed to calculate UV-exposure within plant stands for longer periods. By use of plant-specific parameters this model can be applied for different plant types, for forests as well as for crops like barley. The model calculates the variation of irradiance due to different sun positions, and due to atmospheric parameters such as total ozone content, aerosol amount and properties, as well as clouds. The model takes into account the plant growth, which is important for annual plants like barley. As an example, the UV-exposure has been modelled for a real barley stand in southern Germany for the growing season of the year 2002. The plant-weighted UV-irradiances have been calculated on a hourly basis for 10 levels within the canopy, and from this the UV-exposure as the cumulative UV-radiation of all preceding days. Since plants have repair mechanisms for damage due to UV-radiation, additionally UV-impact was modelled by accounting mainly for UV-exposure during the most recent days under the assumption that its impact on the plant decays exponentially. |
| first_indexed | 2024-03-08T04:46:41Z |
| format | Article |
| id | doaj.art-532bae9c6c9249d8bcb67f1f56928ab5 |
| institution | Directory Open Access Journal |
| issn | 0941-2948 |
| language | English |
| last_indexed | 2024-03-08T04:46:41Z |
| publishDate | 2005-05-01 |
| publisher | Borntraeger |
| record_format | Article |
| series | Meteorologische Zeitschrift |
| spelling | doaj.art-532bae9c6c9249d8bcb67f1f56928ab52024-02-08T08:46:06ZengBorntraegerMeteorologische Zeitschrift0941-29482005-05-0114212913510.1127/0941-2948/2005/001354109Modelling the UV-exposure within a plant stand during a vegetation periodJan H. SchweenPeter KoepkePlants are constantly exposed to solar radiation. Thus, the observed raised levels of UV-radiation lead also to a raised exposure for plants. In the recent years, so-called 'non-parasitic leaf spots' (NPLS) have led to yield losses for barley of up to 40 %. It is assumed that this disease is caused by raised UV-radiation levels. For this reason a model has been developed to calculate UV-exposure within plant stands for longer periods. By use of plant-specific parameters this model can be applied for different plant types, for forests as well as for crops like barley. The model calculates the variation of irradiance due to different sun positions, and due to atmospheric parameters such as total ozone content, aerosol amount and properties, as well as clouds. The model takes into account the plant growth, which is important for annual plants like barley. As an example, the UV-exposure has been modelled for a real barley stand in southern Germany for the growing season of the year 2002. The plant-weighted UV-irradiances have been calculated on a hourly basis for 10 levels within the canopy, and from this the UV-exposure as the cumulative UV-radiation of all preceding days. Since plants have repair mechanisms for damage due to UV-radiation, additionally UV-impact was modelled by accounting mainly for UV-exposure during the most recent days under the assumption that its impact on the plant decays exponentially.http://dx.doi.org/10.1127/0941-2948/2005/0013 |
| spellingShingle | Jan H. Schween Peter Koepke Modelling the UV-exposure within a plant stand during a vegetation period Meteorologische Zeitschrift |
| title | Modelling the UV-exposure within a plant stand during a vegetation period |
| title_full | Modelling the UV-exposure within a plant stand during a vegetation period |
| title_fullStr | Modelling the UV-exposure within a plant stand during a vegetation period |
| title_full_unstemmed | Modelling the UV-exposure within a plant stand during a vegetation period |
| title_short | Modelling the UV-exposure within a plant stand during a vegetation period |
| title_sort | modelling the uv exposure within a plant stand during a vegetation period |
| url | http://dx.doi.org/10.1127/0941-2948/2005/0013 |
| work_keys_str_mv | AT janhschween modellingtheuvexposurewithinaplantstandduringavegetationperiod AT peterkoepke modellingtheuvexposurewithinaplantstandduringavegetationperiod |