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Structural development and productivity of replanted mangrove plantations in Kenya
Kairo, J.G.; Lang'at, J.K.S.; Dahdouh-Guebas, F.; Bosire, J.O.; Karachi, M. (2008). Structural development and productivity of replanted mangrove plantations in Kenya. Forest Ecol. Manag. 255(7): 2670-2677. dx.doi.org/10.1016/j.foreco.2008.01.031
In: Forest Ecology and Management. Elsevier/Elsevier Science: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo. ISSN 0378-1127; e-ISSN 1872-7042, more
Peer reviewed article  
Available in  Authors 
Keywords
    Mangroves
    Population characteristics > Biomass
    Production rate > Productivity
    Reforestation
    Sampling
    Vegetation
    Rhizophora mucronata Poir. [WoRMS]
    ISW, Kenya, Gazi Bay [Marine Regions]
    Marine/Coastal
Author keywords
    Mangrove reforestation; Silviculture; Yield tables; Gazi Bay; Kenya
Authors  Top 
  • Kairo, J.G., more
  • Lang'at, J.K.S.
  • Dahdouh-Guebas, F., more
  • Bosire, J.O., more
  • Karachi, M.
Abstract
    Forest structure and productivity was investigated in a 12-year-old Rhizophora mucronata Lam. plantation at Gazi Bay, Kenya. Sampling was carried out in 22, 10 m Ã- 10 m quadrats laid along belt transects perpendicular to the waterline. Within each quadrat all trees with stem diameter greater than 2.5 cm were identified, position marked and counted. Vegetation measurements included tree height (m), canopy cover (%) and stem diameter measured at 1.3 m above the ground (D130); from which were derived basal area (m2/ha); stand density (stems/ha) and biomass (t/ha). Information regarding composition and distribution of juveniles was derived using linear regeneration sampling (LRS). The replanted forest had a stand density of 5132 stems/ha; with a mean canopy height and stem diameter of 8.4 ± 1.1 m (range: 3.0-11.0 m) and 6.2 ± 1.87 cm (range: 2.5-12.4 cm), respectively. The total juvenile density was 4886 saplings per hectare; 78.6% of which constituted the parental canopy. The standing biomass for the 12-year-old R. mucronata plantation was 106.7 ± 24.0 t/ha, giving a biomass accumulation rate of 8.9 t/(ha year).
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