DEPARTMENT OF FOREST RESOURCES MANAGEMENT

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Subject: search.filters.subject.Climate change mitigation

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    Carbon fraction distribution of soil depths of Omo Biosphere Reserve, Nigeria
    (Forestry Association of Nigeria, 2019-10) Ubaekwe, R. E.; Falade, O. F.; Ariwaodo, J. O.
    Soil is regarded as largest carbon reservoir in terrestrial ecosystem but availability of Information on soil aggregates cum carbon fraction distribution along depths in relation to specified location is lacking. Soil carbon accumulation of aggregate sizes was estimated at five soil depths in natural forest reserve, Omo Biosphere Reserve, Nigeria. Guided by the heterogeneity of the reserve, it was stratified into close and open canopy structures. Fourteen and six (30m x 30m) sample plots were demarcated in close and open canopy, respectively. Profile pit was dug at the center of sample plots (30m x 30m) and soil samples were collected at 0 - 20, 20 - 40, 40 - 60, 60-80, 80 - 100cm depths and air dried. Air- dried soil samples (100g) were separated into five aggregate sizes (>2.0, 2-1, 1-0.5, 0.5-0.052mm, <0.052mm) using wet sieving method, and percentage carbon content of each aggregate fractions were determined using Loss on Ignition Method. Data collected were analyzed using descriptive statistics and ANOVA at α 0.05. Carbon distribution varied among the soil aggregates and across the depths. The degree of carbon protection and carbon stability are higher in <0.052mm aggregate size than in other aggregates. Macro-aggregate and micro-aggregate are responsible for carbon accumulation in surface and sub-surface soils, respectively. Therefore, macro-aggregate and micro-aggregate are responsible for carbon Sequestration in soil of Omo Biosphere Reserve.
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    Climate change mitigation and the forest sector
    (Forestry Association of Nigeria, 2008) Amusa, T.O; Azeez, I.O
    The paper provides an overview on the global phenomenon of climate change and tile portentous impacts of greenhouse gas (GHG) emission. The international efforts vis-a-vis the UNFCCC and the Kyoto protocol aimed at curbing the effects of climate change were discussed. The role of the forest as a potential climate change mitigation tool was also analyzed while policies for mitigation were appraised. Forests and vegetation cover are seen as an important source of carbon as well as a carbon store. Thus, they can play a key role in generating carbon offsets- the most important GHG being contributed by human activities. The conservation of forests offers important opportunities to mitigate climate change and protect biodiversity. Therefore, the impacts of climate change on human and natural ecosystems can be reduced though the adoption of forest-based conservation strategies. The paper concludes by drawing lessons applicable to tropical African countries.