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Reducing deforestation and improving access of women to affordable fuel resource for cooking in Sub-Saharan Africa -Case study Sudan

XV World Forestry Congress, 2-6 May 2022











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    Article
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    Improvement of the forest cover-changes cartography from global forest change for critical deforestation regions in Mexico. Case of the Lacandona Region 2014-2021
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Global Forest Change (GFC) is a global monitoring system with moderate resolution (Landsat, 30 m pixel) that allows knowing the location and magnitude of the losses or gains of global forest cover. Critical Forest Change (CFC) is a calibration system based on comprehensive photo interpretation (1:10,000 scale for change editing, and 1:5,000 scale for interpretation- confirmation of change strata), with diagnostic criteria supported by field data of the National Forest Inventory (scale 1:1, period 2014-2021). CFC reduces until 85.8% the overestimation of the forest loss of GFC in the case of the Lacandona Region (327,646 ha). The process included the analysis of data at 330 study sites and the interpretation of 1,190 frames of Spot-6 (April 28, 2014) versus Sentinel-2 (April 24, 2021) in higher resolution (10 m). The annual rate of forest loss obtained by GFC (4,526 ha.yr-1) is 1.87 times higher than the LFC rate (2,415 ha.yr-1). Through a comparative analysis between the cartography of GFC and CFC, it was possible to identify that 19.2% of the differences correspond to phenological changes (leaf fall deciduous, greenness variation, or alteration of the biomass due to eventual changes in humidity). 31.3% by Landsat spatial resolution limitations, 3.8% occurs in changes by industrial plantations, 11.6% of the differences can reduce by eliminating the GFC residuals outside the forest FAO definition (changes less than 0.5 ha), 7.4% of the differences correspond to atmospheric noise in the interpreted images, 6.8% to visual omissions and 19.9% there are no changes by interpretation. The cartographic adjustment of GFC by CFC is relatively fast (1,000 ha.hr-1 per photointerpreter-expert). Its implementation improves the spatial coherence, periodicity, and legibility of the areas of change, strengthening the relevance of both systems in local policy decisions. Cartographic results of this work are available at http://selvalacandona.ecosur.ourecosystem.com Keywords: Selva Lacandona; Critical Forest Change; Global Forest Change; Forest Monitoring; Deforestation. ID: 3624121
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    The use of Normalized Difference Vegetation Index (NDVI) to assess urban forests dynamics in West Africa: A case study of Mbao Classified Forest, Dakar (Senegal)
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Mbao Classified Forest is the largest urban forest in Dakar. It covers an area of 720 hectares and is the most important green lung of the city. This forest plays a key role in terms of carbon storage and sequestration, air pollution removal, and more generally in ecosystem services provision. Hence it is urgent to monitor the dynamic of this forest over the past twenty years (1998-2018) because a lot of infrastructures including a water pumping station and a highway were established inside during this period. These installations make it subject to encroachments and the risk of depletion that could compromise its existence. The aim of this this paper is to assess urban forest dynamics using artificial intelligence and vegetation indices. To achieve this goal the first step is to perform a forest inventory. We opted for a sampling rate of 0.5%. The area of a plot in the i-Tree Eco inventory is 391 m2 with a radius of 11.16 m, which resulted in a total number of 90 plots. The variables measured for each tree are D.B.H, total height, crown width. The allometric equations were used to compute the above-ground biomass. The NDVI of every plot was computed from Landsat datasets followed by the development of a linear regression model with NDVI as the independent variable and biomass as the dependent variable. Landsat imagery enables the NDVI computation of each plot during the twenty past years and using the regression model, the biomass was determined over this period. Our results provide a sound basis to advocate the safeguarding of Mbao Classified Forest. Keywords: Urban forest, biomass, NDVI, inventory. ID: 3621874
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    Forest natural resource management and non-timber forest products as nature-based solutions for climate adaptation, ecosystem restoration and poverty alleviation in Mali– a case study
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Climate change, nature loss and poverty are major intertwined crises that mutually reinforce each other. This is particularly true for smallholder farmers in Africa’s drylands: they are the hardest hit by the climate crisis, which contributes to the degradation of the land upon which their livelihoods depend. Further pushed into poverty, rural people are forced to resort to unsustainable land practices for survival, feeding the cycle of environmental degradation and climate change. Intertwined crises need integrated approaches, such as nature-based solutions (NbS) that protect natural ecosystems and address societal challenges. Tree Aid works in Africa’s drylands to unlock the potential of trees to tackle poverty and improve the environment. Here, we present a quantitative NbS case study looking at the impacts of the adoption of forest natural resource management (NRM) and increased production of non-timber forest products (NTFPs) among smallholder farmers in the Segou region in Mali between July 2017 and July 2020. This project was a partnership between Tree Aid, the UK funded Darwin Initiative and local partner Sahel Eco.Its socioeconomic impact was evaluated with focus group discussions, baseline and endline assessments using the Rural Household Multi-Indicator Survey (RHoMIS) (https://www.rhomis.org/). Ecosystem restoration impacts were assessed by ecological surveys and data from permanent monitoring plots.We demonstrate that NRM and NTFPs delivered positive outcomes for people (reduction of project population living below the poverty line), biodiversity (+20,404ha of land under improved management), and climate (improved climate resilience through better access to natural resources). This evidences the viability of high-quality NbS in Africa’s drylands and calls for greater long-term restoration investment and deployment in the region informed by and delivered through local communities and organisations. Keywords: NbS, NTFPs, NRM, Mali, forest governance ID: 3622597

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    Report on Partnerships and Collaboration 2021
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    Corporate general interest
    Élevage des caprins 2023
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    Ce petit livre est une compilation succincte de contenus techniques très simples portant sur l'élevage caprin afin d'apporter un appui stratégique aux agents sanitaires et productifs sur le terrain. Il était destiné à l'origine pour Haïti, notamment à l’intention du gouvernement (service vétérinaire) et de tout autre acteur tel que les organisations non gouvernementales, les associations professionnelles ou les praticiens privés individuels, en vue d’accompagner la fourniture de lots d'animaux aux agriculteurs dans le cadre de projets de coopération.
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    Guide de bonnes pratiques d'élevage, de transport, de commercialisation et d'abattage des porcs 2022
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    La réduction du déficit en produits alimentaires carnés ne pourrait s’opérer que par la promotion de l’élevage des espèces à cycle de reproduction court comme les ruminants, les volailles, les porcins, les lapins et les produits halieutiques. Parmi ces espèces, le porc qui a une meilleure prolificité avec une adaptation alimentaire plus simple présente de nombreux atouts. Au Togo, l’élevage porcin joue un rôle majeur dans la sécurité alimentaire, nutritionnelle et l’autosuffisance en protéines animales des classes sociales les plus défavorisées et marginalisées. De 1997 à 2009, le Togo a connu des épizooties de Peste Porcine Africaine qui ont dévasté une grande partie du cheptel porcin, augmentant la vulnérabilité socio-économique de nombreux ménages ruraux qui dépendent de l’élevage porcin. Ce guide est proposé pour contribuer à élever le niveau des éleveurs.