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| Titel |
Identification of a general light use efficiency model for gross primary production |
| VerfasserIn |
J. E. Horn, K. Schulz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 8, no. 4 ; Nr. 8, no. 4 (2011-04-21), S.999-1021 |
| Datensatznummer |
250005700
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| Publikation (Nr.) |
 copernicus.org/bg-8-999-2011.pdf |
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| Zusammenfassung |
| Non-stationary and non-linear dynamic time series analysis tools are applied
to multi-annual eddy covariance and micrometeorological data from 44 FLUXNET
sites to derive a light use efficiency model for gross primary production on a daily basis. The extracted
typical behaviour of the canopies in response to meteorological forcing leads
to a model formulation allowing for a variable influence of the environmental
drivers temperature and moisture availability modulating the light use
efficiency. Thereby, the model is applicable to a broad range of vegetation
types and climatic conditions. The proposed model explains large proportions
of the variation of the gross carbon uptake at the study sites while the
optimized set of six parameters is well defined. With the parameters showing
explainable and meaningful relations to site-specific environmental
conditions, the model has the potential to serve as basis for general
regionalization strategies for large scale carbon flux predictions. |
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