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ArticleAssessing tree succession, species diversity and carbon sequestration potentials in off-reserve secondary forests for REDD+ implementation in Ghana
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Ghana is losing its primary forest, mostly forest reserves at an alarming rate. Secondary forests play a vital role in tropical landscapes, but few studies exist to assess their regeneration pathways and carbon sequestration in Ghana. We sought to find out the regeneration potentials, species diversity and carbon stocks accumulation of off-reserve secondary forests in the Moist Semi-deciduous and Dry Semi-deciduous zones. Four age classes were studied; 0-5, 6-10, 11-15 and 15+ years. Four plots with three replications were used for each age class. Nested plots were chosen; 33 m x 33 m for trees (dbh≥ 5 cm) 10 m x 10 m for saplings (≥1m tall and dbh <5cm) and 2 m x 2 m for seedlings. Age had significant differences in tree (dbh≥ 5 cm) density and basal area between the sites but not on sapling and seedling densities. A total of 129 tree species with dbh ≥5cm belonging to 95 genera and 40 families were identified. Mean Shannon-Weiner diversity index of trees (dbh ≥ 5cm) was 3.6±0.2 and 3.3±0.3 for the Moist Semi-deciduous and Dry Semi-deciduous zones respectively. Both age and forest site had significant effect on aboveground carbon accumulation with age of forest having more significance than climatic conditions. Age of a secondary forest has more effect on the species composition than climate. The secondary forest depicts the characteristic of young growth where the tree densities of most trees are confined to dbh= 5- 10cm in both zones and the potential of rapid recovery of species and carbon accumulation represents an important source of timber and carbon sink. The strong presence of regeneration portrays the potential for carbon sequestration under Reducing Emissions from Deforestation and forest Degradation (REDD+) if secondary forests are managed well in Ghana. Collaborative management of secondary forests with farmers and good forest polices can help Ghana achieve benefits such as timber, woodfuel, and carbon to participate in REDD+. Keywords: [Deforestation and forest degradation, REDD+, secondary forest, Climate change, Landscape management]\ ID: 3617260 -
ArticleVolume yield, tree species diversity and carbon storage of sacred groves in Southwestern Nigeria
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Recently, the role of sacred groves in biodiversity conservation and provision of ecosystem goods and services has been a subjected to scientific investigation. In this study, data were collected from four sacred groves (Osun‐Osogbo, Igbo‐Olodumare, Idanre Hills and Ogun‐Onire) in southwestern, Nigeria to investigate their volume yield, tree species diversity, biomass and carbon storage potentials. Data were collected from 32 sample plots of 20 m x 40 m, established across the four sacred groves. In each plot, all woody plants with dbh ≥10cm were identified and their growth variables (dbh and height) measured. Non‐destructive allometric equation method was adopted for the estimation of volume, biomass and carbon stock production. The number of families and tree species encountered in the groves (understory and overstory layers) ranged from 22 to 32 and 41 to 85, respectively. The four groves had high Shannon‐Wiener diversity index (2.63 ‐ 3.55). They had high volume yield (244.99 m3 ha‐1 to 343.08 m3 ha‐1), biomass production (87.8 t ha‐1 to 231.86 t ha‐1) and carbon stock (43.9 t ha‐1 to 115.9 t ha‐1), with potentials for continuous growth as evidenced by the presence of young trees in the lower canopy. Thus, besides being good biodiversity conservation method, sacred groves act as sink of atmospheric CO2 considering their high biomass and carbon accumulation. The use and protection of sacred groves by indigenous people has enhanced tree species diversity, improved carbon sequestration and production of other forests ecosystem goods and services, thereby mitigating climate change and its effects. Keywords: Biomass, Climate change, Carbon stock, Carbon sequestration, sacred forest and Traditional methods ID: 3605244 -
ArticleAssessing the impacts of COVID-19 pandemic on the livelihoods of forest-dependent communities: A case study of communities in Oluwa forest reserve, Nigeria
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Though the COVID-19 pandemic is primarily a health crisis, it has a worldwide impact on the communities and economies. This impact has resulted in global socio-economic disruptions and diminished people’s livelihoods. Meanwhile, forests provide economical and livelihood support for many people around the world. For example, one-fifth of the global population depend on forest products for livelihoods and forty per cent of the extreme poor in rural areas live in and on forests. However, restrictions on physical activities as a measure to combat the pandemic also impacted forestry activities, which has put forest-based livelihoods at risk. Quantifying the impacts of the COVID-19 pandemic on forest-based livelihoods could help to better support and economically empowered people whose lives depend on the forests. Therefore, six communities were randomly selected in and around Oluwa forest reserve, Nigeria and a structured questionnaire was used to collect primary data from respondents using purposive sampling. The data collected was analysed using descriptive and inferential statistics to understand the impacts of the COVID-19 pandemic on the livelihoods of forest-dependent communities in Oluwa forest reserve in Nigeria. The findings from this study could be a valuable resource to rebound from the impact of the crisis. Additionally, this study could potentially strengthen the response to the pandemic and improve the resilience of forest-dependent communities. Keywords: COVID-19; communities; forest-dependents; forest reserve; Nigeria ID: 3623746
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