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

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.

PEAUCELLE Marc;  BACOUR Cedric;  CIAIS Philippe;  VUICHARD Nicolas;  KUPPEL Sylvain;  PENUELAS J.;  BELELLI MARCHESINI Luca;  BLANKEN Peter;  BUCHMANN Nina;  CHEN Jiquan;  DELPIERRE Nicolas;  DESAI Ankur R.;  DUFRÊNE Eric;  GIANELLE Damiano;  GIMENO-COLERA Cristina;  GRUENING Carsten;  HELFTER Carole;  HÖRTNAGL Lukas;  IBROM A;  JOFFRE Richard;  KATO Tomomichi;  KOLB Thomas;  LAW Beverly;  LINDROTH Anders;  MAMMARELLA Ivan;  MERBOLD Lutz;  MINERBI Stefano;  MONTAGNANI Leonardo;  SIGUT Ladislav;  SUTTON Mark;  VARLAGIN Andrej;  VESALA Timo;  WOHLFAHRT Georg;  WOLF Sebastian;  YAKIR Dan;  VIOVY Nicolas; 

2019-08-22

BLACKWELL PUBLISHING INC.

JRC113509

0960-7447 (online),   

https://publications.jrc.ec.europa.eu/repository/handle/JRC113509,   

10.1111/geb.12937 (online),