Multispecies allometric equations for shrubs and trees biomass prediction in a Guinean savanna (West Africa)

Yao Anicet Gervais Kouamé , Mathieu Millan , Aya Brigitte N'Dri , Tristan Charles-Dominique , Marcel Konan , Adama Bakayoko , Jacques Gignoux (1)

1 iEES Paris - Institut d'écologie et des sciences de l'environnement de Paris

Highlights • New allometric equations were developed for predicting aboveground and belowground biomass (AGB and BGB) of trees and multi-stemmed shrubs in the Guinean savannas based on field measurements, providing information for West African mesic savannas and filling a critical knowledge gap. • AGB and BGB of trees were better predicted from the quantity ρD b 2 H (with ρ the specific wood density in g cm-3 , D b the stem basal diameter in cm, and H the tree height in m). • Obtaining accurate estimates of AGB and BGB in multi-stemmed shrubs required additional consideration of the total number of stems. • The root/shoot biomass ratio decreased with increasing of the stem size (measured by D b) for trees but remains relatively unchanged for shrubs.

Mots clés: allometric equations; aboveground and belowground biomass; carbon stocks; Guinean savannas; shrubs; trees

Domaines: Ecosystèmes; Complexité [cs.CC]; Modélisation et simulation; Biodiversité et Ecologie; Interfaces continentales, environnement

Yao Anicet Gervais Kouamé, Mathieu Millan, Aya Brigitte N'Dri, Tristan Charles-Dominique, Marcel Konan, et al.. Multispecies allometric equations for shrubs and trees biomass prediction in a Guinean savanna (West Africa). Silva Fennica, 2022, 56 (2), pp.10617. ⟨10.14214/sf.10617⟩. ⟨hal-03819584⟩