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ArticleJournal articleRestoration of diversity and regeneration of woody species through area exclosure: The case of Maun International Airport in northern Botswana
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Deforested and degraded areas can be cheaply and conveniently restored through establishment of exclosures. An area exclosure excludes animals and humans from accessing an area to promote natural regeneration of plants and rehabilitate ecological condition of the area. The study was aimed at: (i) determining the diversity (species richness, diversity and evenness); (ii) assessing the stand structure (densities); and (iii) assessing regeneration status of woody species inside and outside exclosed Maun International Airport, northern Botswana. Vegetation sampling was conducted from April to May 2018. A total of 48 and 37 quadrats of 20 x 20 m were laid down at 50 m intervals along transect lines inside and outside Maun International Airport, respectively. Identity, number of all live individuals and height of all woody species were recorded in all the quadrats. The diversity of all woody species was analysed by using Shannon Diversity Index (H’) and regeneration status of each woody species was assessed using frequency distribution of height class. The diversity, evenness and species richness were significantly higher inside than outside Maun International Airport. Colophospermum mopane was the most abundant species both inside (75% of all woody species) and outside (96% of all woody species) Maun International Airport. More species showed healthy regeneration status inside than outside Maun International Airport. The inside of Maun International Airport recorded more alien invasive woody species compared with the outside, owing to its original use as a residential area. The local communities might have introduced these species as ornamental trees. This study has demonstrated the important role exclosures play in enhancing woody species richness, diversity and evenness as well as facilitating regeneration of woody species. This study has highlighted that degraded woodlands and other similar ecosystems can be cheaply and conveniently restored through establishment of exclosures. Keywords: Density; evenness; population structure; regeneration ID: 3624015 -
ArticleJournal 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 -
ArticleJournal articleDeforestation trends and impact assessment of protected area designation in the South American tri-national Atlantic forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The South-American Atlantic Forest region spans the nations of Argentina, Brazil and Paraguay. It is one of the most ecologically diverse in the world, yet one of the most vulnerable to deforestation with little research examining trends and drivers. Conservation interventions can play a critical role in protecting this forest, but the impact of their implementation remains unclear. We assessed the effects of forest protected area (FPA) designation on avoided deforestation across the Atlantic Forest region between 2000 and 2020 using the most recently available remote-sensed data in combination with geo-referenced socio-economic descriptors. Applying a pseudo-randomized approach, we quantified factors explaining establishment of FPAs and compared deforestation rates. Results show FPA designation lowered the odds of deforestation by about 14%, which is significantly higher than past assessments in other Latin American regions. Effectively, the estimated deforestation rate within FPA-designated areas (~5%) was nearly four-times lower than in non-FPA forests (19%). Future studies are needed to assess the impacts of FPAs on the socioeconomic wellbeing of forest-dependent communities across the Atlantic forest. Keywords: Deforestation and forest degradation, Financial mechanisms, Monitoring and data collection, Research, Governance ID: 3622476
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BookletHigh-profileFAO Strategy on Climate Change 2022–2031 2022The FAO Strategy on Climate Change 2022–2031 was endorsed by FAO Council in June 2022. This new strategy replaces the previous strategy from 2017 to better FAO's climate action with the Strategic Framework 2022-2031, and other FAO strategies that have been developed since then. The Strategy was elaborated following an inclusive process of consultation with FAO Members, FAO staff from headquarters and decentralized offices, as well as external partners. It articulates FAO's vision for agrifood systems by 2050, around three main pillars of action: at global and regional level, at country level, and at local level. The Strategy also encourages key guiding principles for action, such as science and innovation, inclusiveness, partnerships, and access to finance.
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Book (series)Manual / guideProcedural Manual 24th Edition 2015The Procedural Manual of the Codex Alimentarius Commission is intended to help Member Governments participate effectively in the work of the joinf FAO/WHO Food Stardards Programme. The manual is particulry useful for national delegations attending Codex meetings and for international organizations attending as observers. It sets out the basic Rules pf Procedures, procedures for the elaboration of Codex standards and related texts, basic definitions and guidelines for the operation of Codex commi ttees. It also gives the membership of the Codex Alimentarius Commission.
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Book (stand-alone)Technical bookThe future of food and agriculture - Trends and challenges 2017
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No results found.What will be needed to realize the vision of a world free from hunger and malnutrition? After shedding light on the nature of the challenges that agriculture and food systems are facing now and throughout the 21st century, the study provides insights into what is at stake and what needs to be done. “Business as usual” is not an option. Major transformations in agricultural systems, rural economies, and natural resources management are necessary. The present study was undertaken for the quadrennial review of FAO’s strategic framework and for the preparation of the Organization Medium-Term plan 2018-2021.