Dataverse World Agroforestry (ICRAF)
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Analisis kelayakan financial beberpa pola agroforestri di daerah Tapanuli, Sumatera Utara
No full textAgroforestry is not a new system in North Sumatra, in fact it has long been practiced. Besides from paddy ricefield, agroforestry in Tapanuli which is also known locally as kebun pocal, North Sumatra is important source of livelihood. Farmers in Tapanuli has developed several agroforestry systems based on the main products they used for source of livelihood. Through rapid assessment that we conducted in the area, we identified dominant agroforestry systems in Tapanuli are rubber agroforestry, coffee agroforestry, benzoin agroforestry and fruit agroforestry (mainly durian). In ge
neral, the size for an agroforest ranges from 0,5 to 4 ha. Income that farmers can obtain from their agroforest varied based on the products they harvest; i.e. a) weekly income from rubber; b) monthly income from cacao, benzoin and parkia; c) six monthly income from coffee; d) yearly income from durian, archidendon and mangosteen. Profitability analysis through Net Present Value (NPV) of those agroforestry systems showed that NPV of coffee agroforest is Rp 9.309.000/ha or equals to 1.000 USD/ha. Rubber agroforest has NPV with the amount of Rp 7.327.000/ha or 787 USD/ha, while benzoin agroforest has NPV with Rp 4.586.000/ha or 434 USD/ha. Thus, to ensure the sustainability of agroforestry contribution to the local livelihood, it is important the agroforestry to be integrated with other landuse system in the landscape Data type: household survey in some agroforestry systems in Tapanuli, North Sumatra. It is part of study on ÃÂSumatran orangutan habitat ecosystem services assessment and ooportunity cost analysi
Farmers’ local ecological knowledge of trees in coffee agroforestry systems in Nicaragua and Guatemala
No full textFarmer's local knowledge on trees: coffee agroforestry systems in two Central American sites. A dissertation submitted in partial fulfillment of the requirements for the degree of Masters in Sustainable Tropical Forestry, Bangor University.
Two coffee growing regions in Nicaragua and Guatemala were explored through the use of local knowledge. Over 90 coffee farmers from each site were interviewed, their knowledge collected trough the use of the Agroecological Knowledge Toolkit (AKT5), and a ranking exercise comparing trees for selected attributes was performed.
Knowledge recorded on more than 43 trees and ranking of 32 species (for growth rate, leaf texture, root abundance, root texture, pruning tolerance, canopy density, leaf litter production and fuel quality (burn length)), provided valuable insight into the characteristics and roles of trees in the coffee field.
Files include tabular data for species lists, ranking data and sample details. Moreover Local knowledge base for each country can be explored in AKT. To download AKT see: http://akt.bangor.ac.uk
Replication data for: Consequences of defaunation for a tropical tree community
No full textR scripts for analyses and generated R datasets. Also seed dispersal syndrome data used. Lambir plot data for four censuses 1992, 1997, 2003, and 2008 is available through www.ctfs.si.edu
Replication data for: Rethinking Rights and Interests of Local Communities in REDD+ Designs: Lessons Learnt from Current Forest Tenure Systems in Cameroon
No full textIt is increasingly becoming clear that reforms based on the claims of local forest communities regarding the right to natural resources will be needed to adequately address issues of sustainable development in Sub-Saharan Africa. The current institutional and policy frameworks of Cameroon and other SSA countries have bestowed exclusive land tenure rights to the State, while curtailing access of local farmers to forest and forest-based resources on which they depend for a living. It is therefore unlikely that successful forest conservation and implementation of REDD+ can be possible without recognition and enforcement of customary tenure.This paper aimed to sense smallholders’ perceptions on rights and risks in the current forestry policy arena linked with the climate change debate in Cameroon. Using semistructured questionnaires and focus group discussions about 7 key informants and 66 community forest users were investigated about the current tenure systems and the risks of related conflicts. Findings from the field provide empirical evidence on the sources of conflict. Based on failures and positive elements of community forestry, the lessons learnt could enrich the on-going REDD safeguard debates and serve as guiding milestones towards the effectiveness of this initiative across the cou
ntry and the continen
Replication data for: Can Rural Development Projects Generate Social Capital? A Case Study of Ricinodendron heudelotii Kernel Marketing in Cameroon
No full textSocial capital is an important pillar of farmersâ livelihoods and its importance for sustainable rural development has been recognised. Nevertheless, the creation of social capital through external interventions remains challenging. This study investigated the generation of social capital within a rural development project of the World Agroforestry Centre to promote Rici
nodendron heudelotii (Baill) Pierre ex Pax. kernel commercialisation. Combining quantitative and qualitative measurement techniques, the change in social capital over a period of 5 years was evaluated. Households of project villages were compared to control households. Project households increased their social assets significantly at different levels. Development interventions thus enhanced social capital, this improvement was mutually reinforced by a positive change in other farmer livelihood assets, in particular financial capital. This study reveals the complexity of social capital generation through external intervention and its implications for farmer livelihoods specifically and development work in general
Replication data for: Enhanced Structural Complexity Index: An Improved Index for Describing Forest Structural Complexity
No full textThe horizontal distribution of stems, stand density and the differentiation of tree dimensions are among the most important aspects of stand structure. An increasing complexity of stand structure is often linked to a higher number of species and to greater ecological stability. For quantification, the Structural Com- plexity Index (SCI) describes structural complexity by means of an area ratio of the surface that is gener- ated by connecting the tree tops of neighbouring trees to form triangles to the surface that is covered by all triangles if projected on a flat plane. Here, we propose two ecologically relevant modifications of the SCI: The degree of mingling of tree attributes, quantified by a vector ruggedness measure, and a stem density term. We investigate how these two modifications influence index values. Data come from forest inventory field plots sampled along a disturbance gradient from heavily disturbed shrub land, through secondary regrowth to mature montane rainforest stands in Mengsong, Xishuangbanna, Yunnan, China. An application is described linking structural complexity, as described by the SCI and its modified ver- sions, to changes in species composition of insect communities. The results of this study show that the Enhanced Structural Complexity Index (ESCI) can serve as a valuable tool for forest manag
ers and ecolo- gists for describing the structural complexity of forest stands and is particularly valuable for natural for- ests with a high degree of structural complexity
Replication data for: Community Monitoring for REDD+: International Promises and Field Realities
No full textWill community monitoring assist in delivering just and equitable REDD+? We assessed whether local communities can effectively estimate carbon stocks in some of the worldâs most carbon rich forests, using simple field protocols, and we reviewed whether community monitoring exists in current REDD+ pilots. We obtained similar results for forest carbon when measured by communities and professional foresters in 289 vegetation plots in Southeast Asia. Most REDD+ monitoring schemes, however, contain no community involvement. To close the gulf between United Nations Framework Convention on Climate Change texts on involving communities and field implementation realities, we propose greater embedding of community monitoring within national REDD+ pilot schemes, which we argue will lead to a more just REDD+
Replication data for: The Importance of Local Traditional Institutions in the Management of Natural Resources in the Highlands of East Africa
No full textTraditional local institutions were studied in the highlands of Ethiopia and Tanzania to understand their role in natural resource management. Focus group discussions as well as individual interviews were conducted to identify the existing local institutions and their roles. Historical trend analyses were done to determine how the importance of local institutions has changed over the ye
ars. Results show that several local institutions with diverse objectives and varying levels of importance exist in the study sites. The article suggests ways in which local institutions can contribute to effective natural resource management for sustainable social and economic development of highland communities in eastern Africa
Replication data for: Cameroon’s Environmental Impact Assessment Decree and Public Participation in Concession-Based Forestry: An Exploratory Assessment of Eight Forest-Dependent Communities
No full textThis paper examines the degree to which public participation in concession-based forestry decision-making - as outlined by the Environmental Impact Assessment (EIA) Decree (No. 2005/0577/PM)-is taking place in eight forest-dependent communities of Cameroon. Of the total respondents that took part in the survey, only 39 per cent stated that they were involved in decisions concerning concession-based forestry. Furthermore, there seems to be a generally negative perception on the part of local communities towards the government’s implementation of public participation legislation in concession-based forestry decision-making. Obstacles to public decision-making process are identified and recommendations are proffered for more effective public participation
Replication Data for: Floristic diversity of Piliostigma asssociations in relation to latitudinal gradient, soil and climate variables in Burkina Faso, West Africa
No full textWe examined the floristic composition and its relationship with environmental factors across 80 floristic relevés of Piliostigma stands distributed along a north-south gradient in Burkina Faso. Various diversity indices were computed. Detrended Correspondence Analysis and Canonical Correspondence Analysis (CCA) were used to explore the relationship between species occurring in Piliostigma stands and environmental variables. The results showed that Piliostigma communities show only limited variation in species composition among sites. The first two axes of the DCA together explained 16.5% of the floristic variation. The CCA showed that climatic variables explain 42% of the species variance. The Piliostigma reticulatum asssociation is adapted to reduced rainfall and sandy soil, whereas the P. thonningii association occurs preferentially on clay soil