Dataverse World Agroforestry (ICRAF)
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Building Biocarbon and Rural Development in West Africa (BIODEV), WP2
No full textThe Building Biocarbon and Rural Development in West Africa Programme aims to demonstrate the multiple developmental and environmental wins that result from a high value biocarbon approach to climate change and variability in large landscapes principally in Mali, Sierra Leone and Guinea. The Programme will also build local institutions and capacity to be able to sustain the benefits in the sites and will establish linkages with related initiatives to jointly build national and regional capacity to scale up the approaches into other programmes and projects. The themes of the Programme are very closely linked to Finland's international development priorities and are closely aligned with the priorities expressed in its national poverty reduction and climate change adaptation strategies. Furthermore, the Programme aims to generate critical information that can fill the global knowledge gaps on how to better link climate change mitigation and adaptation thrusts and how to make these actions work effectively to enhance the livelihoods of rural communities. (2015
Land Health: Carbon sequestration options in pastoral & agro-pastoral systems in Africa (Ethiopia, Burkina)
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Land health: Land health surveillance system for targeting agroforestry based interventions for sustainable land productivity in the western highlands of Cameroon
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Replication data for: Estimating aboveground tree biomass in three different miombo woodlands and associated land use systems in Malawi
No full textTrees outside forests support smallholder farmers’ livelihoods and play a critical role in the global carbon cycle. However, their contribution to climate change mitigation through carbon storage is not obvious because of limited information regarding their extent, and inadequate methods for biomass quantification. This study evaluated the distribution of aboveground biomass (AGB) in three 100 km2 benchmark sites in Kasungu, Salima, and Neno districts in Malawi. In 67 sample plots covering 37 cultivated fields and 30 woodland plots, a total of 2481 trees were inventoried over 6 ha. Tree species documented were 56 in Kasungu, 35 in Salima and 33 in Neno. The corresponding values of the Shannon diversity index and its standard error (SE) were 3.45 (0.01) for Kasungu, 2.78 (0.01) for Salima and 2.73 (0.01) for Neno. The three most dominant species in terms of biomass were Faidherbia albida (47.8%), Piliostigma thonningii (11%), and Mangifera indica (9%), all found in cultivated fields. Large trees with diameter at breast height (DBH) greater than 40 cm formed only 3% of the total population inventoried in Salima, but held over 80% of the biomass. These high biomass trees were hardly found in Kasungu and Neno. Smaller trees (DBH less than 10 cm) dominated all the sites, representing 93% of all the trees measured. These stock 14, 1, and 67% of the biomass in Kasungu, Salima, and Neno, respectively. The biomass estimates established in this study provide a useful reference against which future estimates ca
n be compared, and sets a baseline for calculating changes in carbon stocks over time
Soil carbon storage in tropical agroforestry systems: impacts of dominant tree species in smallholder farms in Rift Valley, Kenya
No full textThe current study evaluated the effect of dominant tree species found within smallholders' agroforestry systems on turnover of soil aggregates
Growth of Dacryodes edulis from 2 types of planting materials (cutting and marcot) at Mbalmayo field site, Cameroon 2017
No full textGrowth evaluatio
Total elemental composition of soils in Sub-Saharan Africa and relationship with soil forming factors
No full textA thorough understanding of the variation in total soil element concentrations is important especially in the Sub-Saharan Africa (SSA) soil contexts for agricultural and environmental management at large scale. Fingerprinting of soil elemental composition may form a useful basis for evaluating soils in a way that relates to soil-forming factors and inherent soil functional properties. The objectives of this paper are to quantify the proportion of variability in total elemental composition by total X-ray fluorescence (TXRF) method of 1074 soil samples from the Africa Soil Information Service (AfSIS) Project baseline and to determine the relationships with soil forming factors. The samples were from 34 sentinel sites measuring 10 × 10 km, randomized within major climate zones in SSA. Within each sentinel site there were sixteen spatially stratified 1 km2 clusters, within which there were ten 100 m2 plots. The within and between site patterns of variation in total element
composition of 17 elements; Al, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Sr, Y, Ta, and Pb, were explored. Total element concentration values were within the range reported globally for soil Cr, Mn, Zn, Ni, V, Sr, and Y and higher than reported range for Al, Cu, Ta, Pb, and Ga. There were significant variations (P 70% of variation in soil element composition patterns can be predicted using information in existing databases or readily observable features. Successful use of TXRF technique would open up possibilities for using total soil elemental composition fingerprints as a useful basis for characterizing soils in a way that relates to soil-forming factors and inherent soil functional properties
Trading in none timber forest products by the rural community around Mt Elgon national park in Uganda
No full textThe data was collected using structured questionnaires that were administered to households and key informants by 12 trained enumerators. The study aimed to provide empirical evidence on the contribution of the forest ecosystem on the welfare of local people . The objectives of the study were: To identify the forest related goods in the study area; To estimate the value of tradable forest products; To determine the socioeconomic factors that influence forest related income and; To identify the determinants of participating in forest related trade
Replication data for: Effects of region, soil, land use and terrain type on fuelwood properties of five tree/shrub species in the Sahelian and Sudanian ecozones of Mali
No full textContext There is little information about inter- and intra-specific variation in fuelwood properties of trees/shrubs in West Africa. • Aims We studied variation in fuelwood properties of Balanites aegyptiaca, Combretum glutinosum, Guiera senegalensis, Piliostigma reticulatum, and Zizyphus mauritiana in the Sahelian and Sudanian ecozones of Mali. • Methods Trees were sampled on different soil (sandy, sandy/loam, or rocky), land use (parkland agroforest or woodland), and terrain (flat, temporarily flooded, or hill slope) types in five regions
extending from the drier eastern to the more humid western parts of Mali. Basic density, volatile matter, fixed carbon, ash content, moisture content, gross calorific value, and fuel value index were measured for each tree and adjusted for tree age. • Results All fuelwood properties differed significantly among species, but there were significant species by region interactions. Most fuelwood properties of four species differed significantly among regions. Soil and/or land use type had significant effects on a few fuelwood properties of four species. • Conclusion In general, fuelwood production is recommended in all regions for G. senegalensis, in drier regions for B. aegyptiaca and C. glutinosum, in more humid regions for Z. mauritiana, and on rocky soils for all species. Fuelwood production of P. reticulatum is not recommended
