Journal of
Horticulture and Forestry

  • Abbreviation: J. Hortic. For.
  • Language: English
  • ISSN: 2006-9782
  • DOI: 10.5897/JHF
  • Start Year: 2009
  • Published Articles: 285

Full Length Research Paper

Woody species diversity conservation and carbon sequestration potential of coffee agroforestry systems in the Western Region of Cameroon

Lucie Félicité Temgoua
  • Lucie Félicité Temgoua
  • Department of Forestry, Faculty of Agronomy and Agricultural Sciences, University of Dschang, P.O. Box 222, Dschang, Cameroon.
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Alex Bruno Dong Etchike
  • Alex Bruno Dong Etchike
  • Department of Plant Biology, Faculty of Science, University of Dschang, P.O. Box: 67 Dschang, Cameroon.
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Marie Caroline Momo Solefack
  • Marie Caroline Momo Solefack
  • Department of Plant Biology, Faculty of Science, University of Dschang, P.O. Box: 67 Dschang, Cameroon.
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Pricelia Tumenta
  • Pricelia Tumenta
  • Department of Forestry, Faculty of Agronomy and Agricultural Sciences, University of Dschang, P.O. Box 222, Dschang, Cameroon.
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Junior Nkwelle
  • Junior Nkwelle
  • Department of Forestry, Faculty of Agronomy and Agricultural Sciences, University of Dschang, P.O. Box 222, Dschang, Cameroon.
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  •  Received: 06 March 2020
  •  Accepted: 09 April 2020
  •  Published: 30 April 2020

Abstract

This study sought to assess the contribution of coffee agroforestry systems (CAFS) in conserving tree diversity and carbon stocks in the western region of Cameroon. Inventory was carried out in 52 plots laid out in CAFS and in adjacent secondary forest. Above-ground biomass was estimated using allometric method. A total of 30 species belonging to 19 families were identified in CAFS and 30 species belonging to 15 families in the forest. The Jaccard similarity index between CAFS and forest was 43%. In the CAFS, the average value of Shanon diversity index was 1.61, reflecting a low diversity. The average tree density was 133 stems/ha in CAFS and 345 stems/ha in the forest. The CAFS stored an amount of carbon of 24.28 tC/ha, representing only 10.30% of the average amount of carbon stored by the forest (235.88 tC/ha). In the CAFS, Elaeis guineensis was the most dominant species with an important value index of 169.96%. The most efficient species for carbon sequestration were Triplochiton scleroxylon with 2.38 tC/tree. These results indicate the need to integrate CAFS as a biodiversity conservation and carbon sequestration land-use system due to the many socio-economic and ecological benefits they provide both in climate change adaptation and mitigation.

Key words: Coffee agroforestry system, diversity, ecosystem services, climate change mitigation, carbon stock.