Estimating Herbaceous Aboveground Biomass Using an Indirect Method Based on the Herbaceous Layer Characteristics
2024
Diatta, Ousmane | N’goran, Adjoua Ange-Jokébed | Fassinou, Cofélas | Salgado, Paulo | Ndiaye, Ousmane | Diatta, Sékouna | Ngom, Daouda | Tagesson, Torbern | Taugourdeau, Simon | Université Cheikh Anta Diop de Dakar [Sénégal] (UCAD) | Institut sénégalais de recherches agricoles [Dakar] (ISRA) | DP-Pôle Pastoralisme Zones Sèches (Dispositif de Partenariat) (PPZS) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-CSE-Université Cheikh Anta DiopEcole Nationale d'Economie Appliquée-Institut sénégalais de recherches agricoles [Dakar] (ISRA) | Systèmes d'élevage méditerranéens et tropicaux (UMR SELMET) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | University of Copenhagen = Københavns Universitet (UCPH) | Département Environnements et Sociétés (Cirad-ES) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)
International audience
显示更多 [+] 显示较少 [-]英语. Background: In the Sahel, one of the largest semi-arid areas in the world, pastoral livestock is the main source of protein for the local population. The quantification of herbaceous biomass in the Sahelian rangelands is of major importance since it provides food for the livestock. The main method used to monitor the biomass consists of cutting, drying, and weighting it. However, indirect methods are available and allow a reliable biomass estimation. Methods: In this study, we developed a non-destructive method for estimating herbaceous biomass for the Sahelian rangelands based on measurements of its height and coverage. Results: Results show that the fit is better in the fenced area. The volume index (height × coverage) provides a better biomass prediction with relative differences between measured and predicted biomass of 11% in 2017 and 8% in 2019. Conclusions: Monitoring herbaceous biomass without destroying it is possible by measuring only its height and coverage.
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