Journal of
Ecology and The Natural Environment

  • Abbreviation: J. Ecol. Nat. Environ.
  • Language: English
  • ISSN: 2006-9847
  • DOI: 10.5897/JENE
  • Start Year: 2009
  • Published Articles: 335

Full Length Research Paper

Deforestation, biodiversity and biomass losses in Kribi deep sea port area (Cameroon): Some mitigating measures

Ngueguim Jules Romain
  • Ngueguim Jules Romain
  • Institute of Agricultural Research for Development (IRAD), P.o.Box 77 Limbe, Cameroon.
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Betti Jean Lagarde
  • Betti Jean Lagarde
  • Department of Plant Biology, Faculty of Sciences, University of Douala, BP 24 157 Cameroon.
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Dicka Kwambe Emmanuel
  • Dicka Kwambe Emmanuel
  • Institute of Agricultural Research for Development (IRAD). P.o.Box 121 Kribi, Cameroon.
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Momo Solefack Marie Caroline4
  • Momo Solefack Marie Caroline4
  • Laboratory of Applied Botany, Department of Plant Biology, Faculty of Science, University of Dschang, P.O. Box: 67 Dschang, Cameroon.
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Temgoua Lucie Felicite
  • Temgoua Lucie Felicite
  • Department of Forestry, FASA, University of Dschang, P.O. Box: 222, Dschang, Cameroon. Received 7 December, 2016; Accepted 31 March, 2017
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  •  Received: 07 December 2016
  •  Accepted: 31 March 2017
  •  Published: 30 June 2017

Abstract

This study is part of the environmental impact assessment realised in the deep sea port area of Kribi. Floristic inventory and diversity assessments were necessary to understand the species composition and diversity status of forests, trees biomass and investigate the potential impact of the project. Floristic analysis shows a high Shannon diversity index (5.3), indicating a rich and diverse flora composed of 83 species, 73 genera and 29 families among which one endanger species (Diospyros crassiflora), two lower risk/near threatened species (Dialium bipendense, Irvingia gabonensis) and vulnerable species mostly wood with high marketing value (Afzelia bipindensis, Entandrophragma angolensis, Entandrophragma utile, Khaya ivorensis, Lovoa trichilioïdes, Pterygota macrocarpa). The mean basal area (28 to 50 m²/ha) reflects the presence of patches of disturbed and non disturbed forest with high frequency of small size trees and few canopy trees with large buttresses. Tree biomass is estimated at 2840 Mg (379 Mg/ha) and carbon stock 189.31 MgC/ha. Ecological impact can be mitigating by a management plan which includes a sustainable choice of urbanization and an emphasis on the protection of biodiversity in the remaining forest especially Campo Ma’an national park known as hot spot of biodiversity and where all the censored species can be found.

Key words: Cameroon-Kribi, deep sea port, deforestation, biomass, mitigating measures.