Structure, carbon sequestration potential and anthro-pogenic pressure on tree species in Porto-Novo's green spaces (Benin)
Year: 2025
Type: article
Abstract: This study assesses the carbon sequestration capacity of urban green spaces in Porto-Novo, Benin, and examines the anthropogenic pressures impacting tree species diversi-ty. A comprehensive inventory of 1,340 trees across 39 selected green spaces revealed a dominance of trees in social and educational institutions (35%), followed by public green spaces (19%). Tree diameter analysis showed a significant variation, with an average diameter ranging from 34.11 cm (street trees) to 79.28 cm (cemeteries), indi-cating the presence of both young and mature trees. The total aboveground biomass (AGB) was estimated at 2,270.42 Mg, corresponding to 1,299.53 Mg of sequestered carbon. Social and educational institutions contributed the most to carbon storage (484.60 Mg, 37%), followed by public green spaces (236.57 Mg, 18%) and landscaped natural areas (179.82 Mg, 14%). However, anthropogenic pressures severely affect tree health, with 154 cases (53.8%) of bark stripping, mainly on Terminalia superba, Terminalia mantaly, and Khaya senegalensis. Pruning (75 cases) and pollarding (44 cases) also impact tree growth and structure. These findings emphasize the need for sustainable urban planning that integrates biodiversity conservation and effective management strategies to enhance carbon sequestration and urban resilience.
Source: Revue Ecosystèmes et Paysages
Authors: Godonou Étienne Romaric Adéwalé, Yevide Sedami Igor Armand, Gbesso Gbodja Houéhanou François, Gbaguidi Ahonankpon Hubert Frédéric, Lougbegnon Olou Toussaint
Language: English
Subfield: Management, Monitoring, Policy and Law
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4412008040