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Non-destructive measurement of leaf area and dry biomass in Tectona grandis

Tondjo Kodjo, Brancheriau Loïc, Sabatier Sylvie-Annabel, Kokutse Adzo Dzifa, Akossou Acardius, Kokou Kouami, Fourcaud Thierry. 2015. Non-destructive measurement of leaf area and dry biomass in Tectona grandis. Trees, 29 (5) : pp. 1625-1631.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FORESTRY

Abstract : Leaf area and leaf dry biomass are key parameters linked to plant production and they are used in functional–structural plant models to simulate plant growth, but they are difficult to ascertain. Measuring leaf dimensions (length and width) to estimate them provides a non-destructive and rapid approach that can be used in the field. This was tested on teak (Tectona grandis) in Togo. Leaves were sampled to maximize variability in sizes along two categories of axes and at different ranks on the growth units. Two different equations were determined to estimate leaf area and dry biomass from leaf dimensions. The relation between leaf area (A) and the product of length (L) × width (Wi) was defined by the linear equation A = 0.60 × L × Wi whereas dry biomass (We) was predicted by a power law We = 0.004 × (L × Wi)1.11. This method could also be tested and applied to other species. (Résumé d'auteur)

Mots-clés Agrovoc : Tectona grandis, biomasse aérienne des arbres, Biomasse, Surface foliaire, Mesure, Modèle mathématique, Modèle de simulation, Croissance

Mots-clés géographiques Agrovoc : Togo

Classification Agris : K10 - Forestry production
K50 - Processing of forest products
F62 - Plant physiology - Growth and development
U10 - Mathematical and statistical methods

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Tondjo Kodjo, CIRAD-BIOS-UMR AMAP (FRA)
  • Brancheriau Loïc, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0002-9580-7696
  • Sabatier Sylvie-Annabel, CIRAD-BIOS-UMR AMAP (FRA)
  • Kokutse Adzo Dzifa, Université de Lomé (TGO)
  • Akossou Acardius, Université de Parakou (BEN)
  • Kokou Kouami, Université de Lomé (TGO)
  • Fourcaud Thierry, CIRAD-BIOS-UMR AMAP (FRA) ORCID: 0000-0001-9475-7239

Source : Cirad-Agritrop (https://agritrop.cirad.fr/576147/)

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