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Covariations between plant functional traits emerge from constraining parameterization of a terrestrial biosphere model

Author
Peaucelle M
Bacour C
Ciais P
Vuichard N
Kuppel S
Peñuelas J
Viovy N
Abstract/Summary

The mechanisms of plant trait adaptation and acclimation are still poorly understood and, consequently, lack a consistent representation in terrestrial biosphere models (TBMs). Despite the increasing availability of geo-referenced trait observations, current databases are still insufficient to cover all vegetation types and environmental conditions. In parallel, the growing number of continuous eddy-covariance observations of energy and CO2 fluxes has enabled modellers to optimize TBMs with these data. Past attempts to optimize TBM parameters mostly focused on model performance, overlooking the ecological properties of ecosystems. The aim of this study was to assess the ecological consistency of optimized trait-related parameters while improving the model performances for gross primary productivity (GPP) at sites.

Year of publication
2019
Journal/Publisher
Global Ecology and Biogeography
DOI/URL
https://onlinelibrary.wiley.com/doi/full/10.1111/geb.12937
English

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