Article (Scientific journals)
Integrating seasonal greenness dynamics for improved forest type discrimination in Lualaba Province (DRC): implications for sustainable forest management
Mukenza, Médard Mpanda; Tchowa, John Kikuni; de Lame, Hugo et al.
2026 • In Scientific African, 33, p. 03513
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Keywords :
Conservation planning; Forest management; Seasonal spectral; Tropical forests; Multidisciplinary
Abstract :
[en] Forests in Lualaba Province, Democratic Republic of the Congo (DRC), are increasingly threatened by logging activities, agricultural expansion, and recurrent bushfires. Yet, little is known about the spatial extent and the structural and functional diversity of the main forest types—dry dense forests, gallery forests, and miombo woodlands. Understanding these differences is crucial, as each forest type faces distinct ecological pressures and provides unique ecosystem services, including climate regulation, biodiversity conservation, and livelihood support. This study evaluates the potential of Sentinel-2 time-series imagery to discriminate forest types by explicitly incorporating seasonal variability in canopy greenness in a seasonally dry tropical context. Monthly NDVI composites for 2024 were used to derive annual and seasonal averages, as well as intra-annual coefficients of variation, capturing vegetation-specific responses to seasonal dynamics. A spatially stratified validation framework implemented in Google Earth Engine was used to assess model robustness. The best-performing classification achieved an overall accuracy of 80.66% and a macro-averaged F1-score of 81% across all eight land-cover classes (Model M2). Results indicate that the dry season (June–September) provides the strongest spectral separation among forest types, underscoring the importance of temporal information for characterising vegetation heterogeneity. By integrating seasonal canopy greenness dynamics into forest-type mapping, this study demonstrates a reproducible, scalable approach for mapping seasonally dry tropical forests. The resulting maps provide an operational framework for forest-type discrimination in seasonally dry tropical landscapes and support sustainable forest management, conservation planning, and climate-resilient land-use strategies in southern DRC and comparable tropical regions.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Mukenza, Médard Mpanda;  Ecology, Ecological Restoration and Landscape Unit, Faculty of Agronomics Sciences, University of Lubumbashi, Democratic Republic Congo ; Department of Plant Science, Faculty of Agronomic Sciences, Université de Kolwezi, Kolwezi, Democratic Republic Congo
Tchowa, John Kikuni;  Department of Plant Science, Faculty of Agronomic Sciences, Université de Kolwezi, Kolwezi, Democratic Republic Congo ; Teaching and Research Center (TERRA), Gembloux Agro-Bio Tech—Université de Liège, Gembloux, Belgium
de Lame, Hugo  ;  Université de Liège - ULiège > TERRA Research Centre > Biodiversité, Ecosystème et Paysage (BEP)
Nguba, Timothée Besisa;  Teaching and Research Center (TERRA), Gembloux Agro-Bio Tech—Université de Liège, Gembloux, Belgium ; Regional Postgraduate School for Integrated Management of Forests and Tropical Territories (ERAIFT), Democratic Republic Congo
Bogaert, Jan  ;  Université de Liège - ULiège > Département GxABT > Biodiversité, Ecosystème et Paysage (BEP)
Sikuzani, Yannick Useni;  Ecology, Ecological Restoration and Landscape Unit, Faculty of Agronomics Sciences, University of Lubumbashi, Democratic Republic Congo
Bastin, Jean-François  ;  Université de Liège - ULiège > TERRA Research Centre > Biodiversité, Ecosystème et Paysage (BEP)
Language :
English
Title :
Integrating seasonal greenness dynamics for improved forest type discrimination in Lualaba Province (DRC): implications for sustainable forest management
Publication date :
September 2026
Journal title :
Scientific African
eISSN :
2468-2276
Publisher :
Elsevier B.V.
Volume :
33
Pages :
e03513
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ARES - Académie de Recherche et d'Enseignement Supérieur
Funding text :
This research was funded by ARES (Acad\u00E9mie de Recherche et d\u2019Enseignement Sup\u00E9rieur) within the framework of the AMORCE project (2024\u20132026), Arborekol_Kolwezi, which supported fieldwork and data collection in the semi-arid forests of DR Congo. The authors would like to thank ARES (Academy of Research and Higher Education) for its support in the AMORSE project (2024\u20132026), Arborekol-Kolwezi. This project has enabled the financing and capacity building of sustainable forest management in the semi-arid region of the Democratic Republic of Congo.
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