Dataverse World Agroforestry (ICRAF)
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Replication data for: Assessing market potential of Agroforestry tree seedlings in Western Kenya
No full textIn this study, Porter’s framework is used to analyse the forces that coordinate and control the market for agroforestry tree seedlings in the Nyando basin in Western Kenya where smallholder farmers were assisted by non-governmental and research organisations to start tree seedling nurseries, with a view to fostering adoption of agroforestry in the region. In addition, financial viability of the enterprise is assessed and the resources and interventions required to improve the operators’ competitiveness and make the enterprise sustainable are identified. Primary data collected from eight nursery operators and sixty agroforestry farmers are used and supplemented with secondary information obtained from relevant literature to gain an insight into the tree seedling industry within and outside the region. The results indicate that the tree seedling industry is highly competitive and is characterised by several small-scale operators who employ similar strategies and produce and sell nearly homogenous products. Consequently, competition is based on price rather than on strategies that require capital investments such as branding, product differentiation and product promotion. The enterprise is financially viable but the gross margins, particularly those of timber tree seedlings, are sensitive to low seedling prices suggesting that competitors are exerting pressure on prices and profitability. Thus, to gain an edge over the competitors, the small-scale operators need to build competitive advantage by adopting strategies that allow them to charge higher prices for their products, maintain customer brand loyalty and understand the coordination, control and relationships within the industry
Replication data for: Genetic variation and clines in growth and survival of Prosopis africana from Burkina Faso and Niger: comparing results and conclusions from a nursery test and a long-term field test in Niger
No full textRural communities in West Africa value Prosopis africana for its wood and other essential products and environmental services. The climate is becoming hotter and drier with more variable rainfall, so it is important to identify provenances that are better adapted to a hotter, drier climate. Some tree improvement research programs use nursery tests to identify better adapted provenances, but are conclusions comparable to those from field tests? We analyzed data (height, root dry weight, shoot dry weight, root/shoot ratio, survival) from a provenance/progeny nursery test of P. africana at 8 months, and compared the results with a field test at 11 and 13 years. The tests included 275 families from 28 provenances in the Sahelian and Sudanian ecozones of Burkina Faso and Niger, and were established at one relatively dry site in Niger. The proportion of total variance due to provenances and families within provenances was greatest for root/shoot ratio, and root/shoot ratio had the highest heritability of growth variab
les in the nursery. Provenances with smaller seedlings and larger root/shoot ratios in the nursery had better growth and survival in the field, and were from drier locations. Mean annual rainfall of provenances was the best predictor of provenance growth and survival in the field, followed by provenance height and root/shoot ratio in the nursery. We recommend that tree improvement research programs in the Sahelian and Sudanian ecozones of West Africa identify P. africana provenances that are from drier locations and have smaller seedlings and larger root/shoot ratios in the nursery for planting in agroforestry projects in rural communities
Mainstreaming climate change in biodiversity planning and conservation in the Philippines: Forest Survey In Kalahan Forest Reserve
No full textPapers not yet published. Only trees with at least 5 cm in diameter at breast height (DBH) were included as samples in the 10m x 10m plots. On the other hand, plants less than 5 cm DBH and more than a meter height were sampled inside the 3m x 3m plots. Plants less than 5cm DBH but less than a meter height were included as samples in the 1m x 1m plots
Communication of climate change and biodiversity in communities in the Upper Marikina River Basin Protected Landscape
No full textPaper not yet published
Integrating Livelihoods and Multiple Biodiversity Values in Landscape Mosaics
No full textThe project, “Integrating Livelihoods and Multiple Biodiversity Values in Landscape Mosaics (or the Landscape Mosaics Project in short)”, was the first project of the CIFOR-ICRAF Biodiversity Platform. The project conducted research on socio-economic, governance and biophysical characteristics and dynamics of the five study landscapes and the interactions between these factors. It also investigated the potential for reward mechanisms for environmental services. The project aimed to in
form and facilitate negotiation processes on natural resource use rights allocation between communities and district level and other key stakeholders in order to enable them to manage landscape mosaics more sustainably.
The project worked in the following study sites: Tanzania: East Usambara Mountains, Tanga Region; South West Cameroon: Takamanda-Mone Technical Operation Unit; Sumatra, Indonesia: Bungo District, Jambi Province; Northern Laos: Vieng Kham District, Luang Prabang Province; and Eastern Madagascar: Manompana corridor, Soanierana-Ivongo District. Within these countries, a landscape was selected that reflected a gradient from a
densely forested protected area to land covers fragmented by agricultural uses. From these landscapes, three representative territories (villages) were selected in which the support to negotiations and empirical research took place.
The project was funded by the Swiss Agency for Development and Cooperation and supported by other donors such as the European Commission, the Governments of Finland, the Netherlands and Australia. The Biodiversity Platform was launched in 2006 as a joint initiative of CIFOR and the World Agroforestry Centre. The Platform was launched in recognition of the role that multifunctional landscape mosaics have in preserving biodiversity conservation, both within and outside of protecte
d areas. Tree cover in multifunctional landscape mosaics preserves important habitats and can play a crucial role in maintaining connectivity between large reserves, which has been demonstrated to be essential for the survival of many species. The occupation and use of these landscapes by many peoples, however, require that any conservation efforts in these mosaics consider the social dimensions of the use and conservation of biodiversity, in addition to their biophysical dimensions and dynamics.
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Ag Biodiversity Project Baseline Survey Data Collection Tools
No full textAg Biodiversity Project Data Collection Tools - Farm Data ODK xls fil
Replication data for: Influence du type d'hormones sur l'enracinement des boutures de Pentaclethra macrophylla
No full textThis study was carried out to determine the hormonal influence on the cutting of Pentaclethra macrophylla. the experimental designs was a 3 randomised blocks with 3 treatments (IBA, IAA, and ANA). the number of cuttings were numbered from 1-18. Both of live root and dead root were recorded
Replication Data for: Allometric equations for below-ground biomass of four key woody species in West African savanna-woodlands
No full textAccurate estimates of both above-ground biomass (AGB) and below-ground biomass (BGB) are essential for estimating carbon (C) balances at various geographical scales and formulating effective climate change mitigation programs. However, estimating BGB is challenging, particularly for forest ecosystems, so robust allometric equations are needed. To obtain such equations for savanna-woodlands of the West African north sudanian zone, we selected four common native woody species (Anogeissus leiocarpa (DC.) Guill. & Perr., Detarium microcarpum Guill. & Perr., iliostigma thonningii (Schumach.) Milne-Redh. and Vitellaria paradoxa C.F. Gaertn.). At two sites in Burkina Faso, we determined the BGB of 30 trees of each of these species by excavation, and measured various above-ground dimensional variables. The root:shoot ratio varied widely among the species, from 0.1 to 3.4. Depending on the species, allometric equations based on stem basal area at 20 cm height, basal area at breast height and tree height explained 50–95% of the variation in BGB. The best generic equation we obtained, based on basal area at 20 cm, explained 60% of the variation in BGB across the species. Three previously published generic allometric equations underestimated BGB by 8 to 63%. The presented equations should significantly improve the accuracy of BGB estimates in savanna-woodlands and help avoid costly needs to excavate root systems
BUILDING BIOCARBON AND RURAL DEVELOPMENT IN WEST AFRICA (BIODEV), M&E
No full textThe overarching goals of this assessment of BIODEV interventions are to: (1) understand differences across pilot and comparison sites in key selected outcomes that relate to improved governance and institutional fostering, germplasm systems and adoption of agroforestry innovations, marketing of agroforestry products; (2) determine the average short term effects on some selected outcomes (3) draw from our study findings policy-relevant recommendations on how BIODEV interventions might sustainably be supported or better refined to meet its goals more effectively
Food Trees Endline Surveys Data Collection Tools
No full textODK Tools that were use to collect the household farm and nutrition and consumption dat