Diversity and regeneration of woody plants of Logone Birni floodplain vegetation in the Far North Region of Cameroon

Moctar, Sassouang Evele and Bourou, Sali and Valery, Noiha Noumi and Tchobsala, . (2024) Diversity and regeneration of woody plants of Logone Birni floodplain vegetation in the Far North Region of Cameroon. Journal of Sustainability Science and Management (Malaysia), 19 (5). pp. 85-109. ISSN 2672-7226

This study aims to contribute to the conservation and sustainable management of the Logone-Birni floodplains in Cameroon. In total, 27 100 m x 100 m plots were laid out in 3 land use types (protected area, grazing area and agricultural area). Within each plot, all woody individuals having ≥ 10 cm circumference at breast height (>1.3 m) were identified, and all the stems with a circumference ≤10 cm were considered as seedlings. A total of 43 timber species belonging to 35 genera and 21 families were harvested. Shannon- Weaver diversity ranged from 1.77-2.39 and the Pielou equitability index from 0.84-0.88 with low values in agricultural areas and higher values in protected and grazing areas. The distribution of stems according to diameter and height showed that all stands exhibit classic exponential decay distribution ‘‘L’’ or ‘‘J’’ inverted, reflecting the predominance of individuals with small diameters. The regeneration rates of the stand vary from 0.81 to 51.56%, indicating a difficult regeneration due partly to anthropogenic activities. It also appears that given the low diversity and the difficult regeneration of the stand, it is important, even crucial, to manage this plain to ensure the conservation and sustainable management of the biological resources that it hosts.

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Abstract

This study aims to contribute to the conservation and sustainable management of the Logone-Birni floodplains in Cameroon. In total, 27 100 m x 100 m plots were laid out in 3 land use types (protected area, grazing area and agricultural area). Within each plot, all woody individuals having ≥ 10 cm circumference at breast height (>1.3 m) were identified, and all the stems with a circumference ≤10 cm were considered as seedlings. A total of 43 timber species belonging to 35 genera and 21 families were harvested. Shannon- Weaver diversity ranged from 1.77-2.39 and the Pielou equitability index from 0.84-0.88 with low values in agricultural areas and higher values in protected and grazing areas. The distribution of stems according to diameter and height showed that all stands exhibit classic exponential decay distribution ‘‘L’’ or ‘‘J’’ inverted, reflecting the predominance of individuals with small diameters. The regeneration rates of the stand vary from 0.81 to 51.56%, indicating a difficult regeneration due partly to anthropogenic activities. It also appears that given the low diversity and the difficult regeneration of the stand, it is important, even crucial, to manage this plain to ensure the conservation and sustainable management of the biological resources that it hosts.

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Item Type:	Article
AGROVOC Term:	floodplains
AGROVOC Term:	wetlands
AGROVOC Term:	woody plants
AGROVOC Term:	forest mensuration
AGROVOC Term:	surveys
AGROVOC Term:	grazing
AGROVOC Term:	deforestation
AGROVOC Term:	species diversity
AGROVOC Term:	forest degradation
Geographical Term:	Cameroon
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	21 Mar 2025 02:48
Last Modified:	21 Mar 2025 02:48
URI:	http://webagris.upm.edu.my/id/eprint/2499

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