About: Vegetation-specific model parameters are not required for estimating gross primary production     Goto   Sponge   NotDistinct   Permalink

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  • Models of gross primary production (GPP) based on remote sensing measurements 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 parameters 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 168 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 performance in simulating GPP while using both set of parameters. These results indicate that a universal of set of parameters, which is independent of vegetation cover type and characteristics can be adopted in prevalent LUE models. Availability of this well tested and universal set of parameters would help to improve the accuracy and applicability of LUE models in various biomes and geographic regions.
  • Models of gross primary production (GPP) based on remote sensing measurements 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 parameters 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 168 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 performance in simulating GPP while using both set of parameters. These results indicate that a universal of set of parameters, which is independent of vegetation cover type and characteristics can be adopted in prevalent LUE models. Availability of this well tested and universal set of parameters would help to improve the accuracy and applicability of LUE models in various biomes and geographic regions. (en)
Title
  • Vegetation-specific model parameters are not required for estimating gross primary production
  • Vegetation-specific model parameters are not required for estimating gross primary production (en)
skos:prefLabel
  • Vegetation-specific model parameters are not required for estimating gross primary production
  • Vegetation-specific model parameters are not required for estimating gross primary production (en)
skos:notation
  • RIV/67179843:_____/14:00432456!RIV15-AV0-67179843
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, S
http://linked.open...iv/cisloPeriodika
  • NOV 24 2014
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 53119
http://linked.open...ai/riv/idVysledku
  • RIV/67179843:_____/14:00432456
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • light use efficiency; gross primary production; model parameters (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [B4F7280B2233]
http://linked.open...i/riv/nazevZdroje
  • Ecological Modelling
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 292
http://linked.open...iv/tvurceVysledku
  • Liu, D.
  • Marek, Michal V.
  • Chen, J.
  • Rambal, S.
  • Montagnani, L.
  • Gianelle, D.
  • Varlagin, A.
  • Wohlfahrt, G.
  • Liu, S.
  • Blanken, P. D.
  • Cai, W.
  • Cescatti, A.
  • Dong, W.
  • Genesio, L.
  • Georgiadis, T.
  • Grelle, A.
  • Kiely, G.
  • Knohl, A.
  • Merbold, L.
  • Panferov, O.
  • Peltoniemi, M.
  • Raschi, A.
  • Yuan, W.
  • Altaf Arain, M.
  • Xia, J.
http://linked.open...ain/vavai/riv/wos
  • 000343845400001
issn
  • 0304-3800
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.ecolmodel.2014.08.017
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