Article (Scientific journals)
Exploration du potentiel de l’imagerie hyperspectrale proche infrarouge et de la chimiométrie pour discriminer la banque de graines du sol de deux espèces de bois d’Afrique centrale : Erythrophleum suaveolens (Guill. & Perr.) Brenan et Erythrophleum ivorense A. Chev.
Douh, Chauvelin; Doucet, Jean-Louis; Tosso, Dji-ndé Félicien et al.
2024In Bois et Forêts des Tropiques, 360, p. 1 - 10
Peer reviewed
 

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Keywords :
chemometrics; discrimination; identification; near-infrared hyperspectral imaging; soil seed bank; timber species; Forestry; Ecology, Evolution, Behavior and Systematics; Ecology
Abstract :
[en] Seeds contained in the soil bank can be too small to quantify visually. Concerned timber species are usually identified after germination trials in the nursery, which is time-consuming. This study explores a new approach based on near infrared (NIR-HSI) hyperspectral imaging coupled with chemometric tools. It focuses on the soil seed bank of the central African moist forests, which is still unknown. We used eighty-three seeds of two sister species, Erythrophleum suaveolens (Guill. & Perr.) Brenan and Erythrophleum ivorense A. Chev., collected in the forest soil (between 0 and 10 cm in depth), in Gabon, Cameroon, and Congo. Applying principal component analysis and partial least squares discriminant analysis, we studied the capacity of near-infrared hyperspectral imaging to identify the seeds of the two timber species. This method is fast, non-destructive, and offers new prospects for studies of forest soil seed banks.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Douh, Chauvelin ;  Forest is life, TERRA Teaching and Research Centre Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium ; Université Marien N’gouabi École nationale supérieure d’Agronomie et de Foresterie (ENSAF), Laboratoire de Géomatique et d’Écologie tropicale appliquées, Brazzaville, Congo
Doucet, Jean-Louis  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion des ressources forestières
Tosso, Dji-ndé Félicien ;  Université de Liège - ULiège > Département GxABT > Gestion des ressources forestières
Daïnou, Kasso  ;  Université de Liège - ULiège > Département GxABT > Gestion des ressources forestières ; Université Nationale d’Agriculture, Kétou, Benin
Gorel, Anaïs  ;  Université de Liège - ULiège > Département GxABT > Gestion des ressources forestières
Deryck, Antoine;  Walloon Agricultural Research Centre (CRA-W), Valorization of Agricultural Products, Department, Gembloux, Belgium
Fernandez Pierna, Juan Antonio ;  Université de Liège - ULiège > Département GxABT
Language :
English
Title :
Exploration du potentiel de l’imagerie hyperspectrale proche infrarouge et de la chimiométrie pour discriminer la banque de graines du sol de deux espèces de bois d’Afrique centrale : Erythrophleum suaveolens (Guill. & Perr.) Brenan et Erythrophleum ivorense A. Chev.
Publication date :
23 October 2024
Journal title :
Bois et Forêts des Tropiques
ISSN :
0006-579X
eISSN :
1777-5760
Publisher :
CIRAD
Volume :
360
Pages :
1 - 10
Peer reviewed :
Peer reviewed
Tags :
ForestIsLife
Funding text :
This study was carried out in the framework of the DynAfFor project (Dynamique des for\u00EAts d\u2019Afrique centrale) financed by the FFEM (Fonds fran\u00E7ais pour l\u2019environnement mondial) and the AFD (Agence fran\u00E7aise de d\u00E9veloppement).Agro-Bio Tech (Belgium), the PEFOGRN-BC projects (support project for the wider programme of training in natural resources management in the Congo Basin), the DynAfFor project (Dynamique des for\u00EAts d\u2019Afrique centrale) financed by the FFEM (Fonds fran\u00E7ais pour l\u2019environnement mondial) and the AFD (Agence fran\u00E7aise de d\u00E9veloppement), led by CIRAD, Gembloux Agro-Bio Tech and Nature+, as well as the logging companies Mokabi-Dzanga (Groupe Rougier) and CIB/OLAM for their financial, scientific and technical support, and for their aid with fieldwork. Finally, we would like to thank Dr. Dakis Yaoba Ouedraogo, Dr. Barbara Haurez, Dr. Jean-Fran\u00E7ois Gillet, Dr. Armel Lo\u00EFc Donkp\u00EAgan S\u00E8gb\u00E9dji, Jean-Yves De Vleeschouwer, Fabrice Rapezant, Gilbert Nsongola, \u00C9lodie Alberny, Mercier Mayinga, Lambert Imbalo, Ang\u00E9lique Ouadiabantou, Yves Cr\u00E9pin Nzihou, Isaac Dzombo, and Maturin Mazengu\u00E9 for their various contributions and their advice.
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