Article (Scientific journals)
Towards a More Realistic Simulation of Plant Species with a Dynamic Vegetation Model Using Field-Measured Traits: The Atlas Cedar, a Case Study
Hambuckers, Alain; Trolliet, Franck; Dury, Marie et al.
2022In Forests, 13 (3), p. 446
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Keywords :
dynamic vegetation modelling; specific leaf area; sapwood nitrogen; leaf nitrogen; acclimation; net primary productivity; Cedrus atlantica (Endl.) Manetti ex Carrière
Abstract :
[en] Improving the model-based predictions of plant species under a projected climate is essential to better conserve our biodiversity. However, the mechanistic link between climatic variation and plant response at the species level remains relatively poorly understood and not accurately de-veloped in Dynamic Vegetation Models (DVMs). We investigated the acclimation to climate of Cedrus atlantica (Atlas cedar), an endemic endangered species from northwestern African moun-tains, in order to improve the ability of a DVM to simulate tree growth under climatic gradients. Our results showed that the specific leaf area, leaf C:N and sapwood C:N vary across the range of the species in relation to climate. Using the model parameterized with the three traits varying with climate could improve the simulated local net primary productivity (NPP) when compared to the model parameterized with fixed traits. Quantifying the influence of climate on traits and including these variations in DVMs could help to better anticipate the consequences of climate change on species dynamics and distributions. Additionally, the simulation with computed traits showed dramatic drops in NPP over the course of the 21st century. This finding is in line with other studies suggesting the decline in the species in the Rif Mountains, owing to increasing water stress.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Hambuckers, Alain  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution ; Université de Liège - ULiège > Sphères
Trolliet, Franck ;  Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques
Dury, Marie ;  Université de Liège - ULiège > Sphères
Henrot, Alexandra-Jane ;  Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques
Porteman, Kristof
El Hasnaoui, Yassine
Van den Bulcke, Jan
De Mil, Tom ;  Université de Liège - ULiège > Département GxABT > Gestion des ressources forestières et des milieux naturels
Remy, Cécile C.
Cheddadi, Rachid
François, Louis  ;  Université de Liège - ULiège > Sphères
Language :
English
Title :
Towards a More Realistic Simulation of Plant Species with a Dynamic Vegetation Model Using Field-Measured Traits: The Atlas Cedar, a Case Study
Publication date :
2022
Journal title :
Forests
ISSN :
1999-4907
Publisher :
MDPI AG, Basel, Ch
Special issue title :
Special issue: Past Environmental Changes and Forest Conservation
Volume :
13
Issue :
3
Pages :
446
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fund for Scientific Research [BE]
UGent - Ghent University [BE]
Available on ORBi :
since 17 April 2022

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