Article (Périodiques scientifiques)
Growth periodicity in semi-deciduous tropical tree species from the Congo Basin.
Luse Belanganayi, Basile; Delvaux, Claire; Kearsley, Elizabeth et al.
2024In Plant-Environment Interactions, 5 (3), p. 10144
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Belanganayi L._Growth periodicity in semi‐deciduous trop_Plant Enviro Inter_PR2024.pdf
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Mots-clés :
cambial marking; growth‐ring distinctness; periodicity of growth‐ring formation; secondary growth; tropical forests; Ecology, Evolution, Behavior and Systematics; Plant Science
Résumé :
[en] In the tropics, more precisely in equatorial dense rainforest, xylogenesis is driven by a little distinct climatological seasonality, and many tropical trees do not show clear growth rings. This makes retrospective analyses and modeling of future tree performance difficult. This research investigates the presence, the distinctness, and the periodicity of growth ring for dominant tree species in two semi-deciduous rainforests, which contrast in terms of precipitation dynamics. Eighteen tree species common to both forests were investigated. We used the cambial marking technique and then verified the presence and periodicity of growth-ring boundaries in the wood produced between pinning and collection by microscopic and macroscopic observation. The study showed that all eighteen species can form visible growth rings in both sites. However, the periodicity of ring formation varied significantly within and between species, and within sites. Trees from the site with clearly defined dry season had a higher likelihood to form periodical growth rings compared to those from the site where rainfall seasonality is less pronounced. The distinctness of the formed rings however did not show a site dependency. Periodical growth-ring formation was more likely in fast-growing trees. Furthermore, improvements can be made by a detailed study of the cambial activity through microcores taken at high temporal resolution, to get insight on the phenology of the lateral meristem.
Disciplines :
Agriculture & agronomie
Anatomie (cytologie, histologie, embryologie...) & physiologie
Biologie végétale (sciences végétales, sylviculture, mycologie...)
Sciences de l’environnement & écologie
Auteur, co-auteur :
Luse Belanganayi, Basile  ;  Université de Liège - ULiège > TERRA Research Centre ; Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Delvaux, Claire;  Woodwise Brussels Belgium
Kearsley, Elizabeth ;  BlueGreen Labs Melsele Belgium
Lievens, Kévin ;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Rousseau, Mélissa;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Mbungu Phaka, Christophe;  Institut National Pour l'Etudes et la Recherche Agronomiques Kinshasa Democratic Republic of the Congo
Djiofack, Brice Yannick ;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium ; Department of Forest and Water Management Gent University Ghent Belgium
Laurent, Félix ;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Bourland, Nils  ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Laboratoire de Foresterie des régions tropicales et subtropicales ; Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Hubau, Wannes ;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium ; Department of Forest and Water Management Gent University Ghent Belgium
De Mil, Tom  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion des ressources forestières
Beeckman, Hans ;  Service of Wood Biology Royal Museum for Central Africa (RMCA) Tervuren Belgium
Langue du document :
Anglais
Titre :
Growth periodicity in semi-deciduous tropical tree species from the Congo Basin.
Date de publication/diffusion :
juin 2024
Titre du périodique :
Plant-Environment Interactions
eISSN :
2575-6265
Maison d'édition :
John Wiley and Sons Inc, Etats-Unis
Volume/Tome :
5
Fascicule/Saison :
3
Pagination :
e10144
Peer reviewed :
Peer reviewed vérifié par ORBi
Subventionnement (détails) :
This study was carried out as part of the PilotMAB and PilotMABplus projects of the Service of Wood Biology of the Royal Museum for Central Africa (RMCA). These projects were funded by the Belgian Directorate-General for Development Cooperation and Humanitarian Aid (DGD). The Hirox HRX-01 3D Digital Microscope, used for some of the images in this paper, is part of the Laboratory of Wood Technology of Ghent university (UGent-Woodlab) and funded by the Flemish Research Council (Fonds Wetenschappelijk Onderzoek, FWO) through project G014123N (COBARCHIVES: A long-term view of Congo Basin forest resilience from fossil charcoal and living trees). We also thank the Regional Post-Graduate Training School on Integrated Management of Tropical Forests and Lands (ERAIFT), the Institut National pour l'Etude et la Recherche Agronomiques\u2014Luki (INERA-Luki) and the non-profit association NATURE PLUS.This study was carried out as part of the PilotMAB and PilotMABplus projects of the Service of Wood Biology of the Royal Museum for Central Africa (RMCA). These projects were funded by the Belgian Directorate\u2010General for Development Cooperation and Humanitarian Aid (DGD). The Hirox HRX\u201001 3D Digital Microscope, used for some of the images in this paper, is part of the Laboratory of Wood Technology of Ghent university (UGent\u2010Woodlab) and funded by the Flemish Research Council (Fonds Wetenschappelijk Onderzoek, FWO) through project G014123N (COBARCHIVES: A long\u2010term view of Congo Basin forest resilience from fossil charcoal and living trees). We also thank the Regional Post\u2010Graduate Training School on Integrated Management of Tropical Forests and Lands (ERAIFT), the Institut National pour l'Etude et la Recherche Agronomiques\u2014Luki (INERA\u2010Luki) and the non\u2010profit association NATURE PLUS.
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depuis le 08 juillet 2024

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