Are vegetation-specific model parameters required for estimating gross primary production?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F13%3A00209753" target="_blank" >RIV/62156489:43410/13:00209753 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5194/gmdd-6-5475-2013" target="_blank" >http://dx.doi.org/10.5194/gmdd-6-5475-2013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/gmdd-6-5475-2013" target="_blank" >10.5194/gmdd-6-5475-2013</a>

Result language
angličtina
Original language name
Are vegetation-specific model parameters required for estimating gross primary production?
Original language description
Models of gross primary production (GPP) are currently parameterized with vegetation-specific parameter sets and therefore require accurate information on the distribution of vegetation to drive them. Can this parameterization scheme be replaced with a vegetation-invariant set of parameter that can maintain or increase model applicability by reducing errors introduced from the uncertainty of land cover classification? Based on the measurements of ecosystem carbon fluxes from 150 globally distributed sites in a range of vegetation types, we examined the predictive capacity of seven light use efficiency (LUE) models. Two model experiments were conducted: (i) a constant set of parameters for various vegetation types and (ii) vegetation-specific parameters. The results showed no significant differences in model performances to simulate GPP while using both sets of parameters. These results indicate that a universal set of parameters, which is independent of vegetation cover type and charac
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GK - Forestry
OECD FORD branch
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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