Tropical wood stores substantial amounts of nutrients, but we have limited understanding why

Bauters Marijn, Grau Oriol, Doetterl Sebastian, Heineman Katherine D., Dalling James W., Prada Cecilia M., Griepentrog Marco, Malhi Yadvinder, Riutta Terhi, Scalon Marina, Oliveras Imma, Inagawa Takeshi, Majalap Noreen, Beeckman Hans, Van den Bulcke Jan, Perring Michael P., Dourdain Aurélie, Herault Bruno, Vermeir Pieter, Makelele Isaac A., Fernández Pere R., Sardans Jordi, Peñuelas Josep, Janssens Ivan A.. 2022. Tropical wood stores substantial amounts of nutrients, but we have limited understanding why. Biotropica, 54 (3) : 596-606.

https://doi.org/10.1111/btp.13069

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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Bauters et al. - 2022 - Tropical wood stores substantial amounts of nutrients, but we have limited understanding why.pdf
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Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Rock-derived nutrients such as calcium (Ca), magnesium (Mg), phosphorus (P), and potassium (K) are essential plant resources, yet depleted in highly weathered tropical soils, leading to nutrient limitation of productivity or other ecosystem processes. Despite this, substantial amounts of rock-derived nutrients occur within wood, which raises questions about the role that wood nutrients play in the ecology of tropical forests. Using data from forests across the tropics, we quantify wood nutrient stocks at individual tree and ecosystem levels. At the ecosystem level, we show that tropical wood can store substantial amounts of rock-derived nutrients. Furthermore, on a tree level, tree species vary widely in woody nutrient concentrations. These observations raise important questions as to the biogeochemical or ecological drivers that lead to this variability, as well as the role that woody tissue plays in the buffering and cycling of nutrients. We offer some potential explanations and direction for future research to explore this under-appreciated but sizable store of inorganic nutrients in tropical biomass.

Mots-clés Agrovoc : bois tropical, substance nutritive, substance nutritive minérale, composition chimique, potassium, biogéochimie, phosphore, magnesium, calcium

Mots-clés géographiques Agrovoc : Bornéo, Congo, Guyane française, Panama, Brésil

Mots-clés libres : Biogeochemistry, Calcium, Magnesium, Nutrient budget, Nutrients, Phosphorus, Potassium, Wood

Classification Agris : F60 - Physiologie et biochimie végétale
F40 - Écologie végétale
K01 - Foresterie - Considérations générales

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

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