Browsing by Author "Kajembe, G.C."

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Assessment of tree stocking and diversity for joint forest management (JFM) in Nkweshoo village forest management area, Kilimanjaro, Tanzania
(A B Academic Publishers, 2012) Luoga, E.J.; Kajembe, G.C.; Shemweta, D.T.K.; Zahabu, E.; Mwaipopo, C. S.; Kweka, D. L.
A village forest near the foot of Mount Kilimanjaro managed under Joint Forest Management (JFM) by the government and the local people was studied to assess its growing stock and to suggest interventions and management to promote its sustainable use. Data were collected using the methods of the International Forestry Resources and Institutions (IFRI) research programme. 19 tree species were identified and enumerated; the stocking was 714 trees/ha, basal area 27.5m2/ha and standing wood volume of 310 m3/ha. Almost half the standing volume was Macaranga kilimandscharica, a canopy tree species that was less desired for sawn timber and had not been over-harvested. Commercial timber production of other species that has been the dominant object of management is currently not sustainable. However, M. kilimandscharica is now the most preferred for firewood and light timber by the local user groups. Limited removal of over mature trees of this species by the local user groups for subsistence and community uses is recommended. The need for continued selective harvesting requires the determination of the sustainable allowable cut through recurrent resource assessment. Meanwhile the controlled harvesting will both demonstrate the value of the forest and motivate local people to protect it and, at the same time, increase its productivity and biodiversity.
Contribution of charcoal extraction to deforestation: experience from CHAPOSA Research Project.
(Sokoine University of Agriculture, 2000) Malimbwi, R.E.; Zahabu, E.; Kajembe, G.C.; Luoga, E.J.
The Charcoal Potential in Southern Africa (CHAPOSA) project which commenced in November, 1999 aimed at increasing the understanding of the effects of utilization of charcoal in three countries of Zambia, Mozambique and Tanzania in southern Africa. The main ecological activities carried out in order to understand the impact of charcoal production on the ecology include: determination of species composition and diversity through forest inventory; determination of mean annual increment for Kitulangalo area from two time series measurements of 1996 and 1999; charcoal tree species and size gradient as influenced by proximity to access roads in Kitulangalo and Mbwewe areas through forest inventory; kiln efficiencies, species and tree sizes preference for charcoal making for Kitulangalo, Mbwewe and Bana areas; woodland cover change between 1991 and 1998; and 1991 and 2000 in the northern and southern catchment parts respectively using satellite imageries. Socio-economic data were collected from Kitulangalo, Mbwewe and Bana. The selection criteria for these sites were: presence of actual charcoal production activities; accessibility relative to other areas in the earmarked catchment area for the study; representative-ness of the study sites in making broad conclusions of the study and availability of ecological and socio- economic data. This study demonstrated that charcoal production and cultivation have an impact on large-scale deforestation that has occurred in the area between 1991 and 1998. Tree species suitable for charcoal production have been depleted at the roadside and the average distance to charcoal production sites has increased. Tree cover is worse today than ten years ago due to charcoal production. These observations have wide policy implications, given the increased demand for charcoal from the growing urban population with no reliable and affordable alternative sources of energy. Only 74% of the closed and 54% of the open woodlands, remain relatively unchanged; most of these were in forest reserves. However, these areas were also undergoing modification due to encroachment for charcoal, timber and other forest products. It is true that in the absence of any further disturbance after tree cutting, the areas may progressively revert to woodland. However, in the face of increased population and the demand for agricultural land, such areas may not be given enough room to regenerate. This calls for appropriate management strategies to ensure regeneration so that the remaining woodlands continue to supply charcoal to Dar es Salaam city and other urban areas. This study has shown that substantial regeneration has occurred in areas previously cut, if they have not been converted to farmland. This increases the potential of the regrowth woodland to supply charcoal over a much longer time period.
Institutional changes in management of Common Pool Resources (CPR) in Eastern Same Tanzania: Challenges and opportunities
(Swiss National Center, 2006) Mbeyale, G.E.; Kajembe, G.C.; Mwamfupe, D.; Haller, T.
During the last four decades Tanzania has witnessed several macro and sectoral policy changes with a trickle down effect, shaping both the management of CPR and livelihoods of resource users and other stakeholders. The study was carried out in the eastern part of Same district, focusing on the highland-lowland CPR interaction among the Maasai pastoralists and the Pare who are predominantly farmers. The main objective was to analyse institutional changes underlying the management of CPR and the factors driving the change with emphasis to resources such as forest, water for irrigation and grazing lands. The theoretical approach for the study is based on Hardin characterization of the tragedy of the commons which is the basic problem of CPR management and the way contemporary scholars such as Ostrom and other researchers have tried to approach the problem. Primary data collection involved the use of anthropological methods and socio- economic surveys employing household questionnaires, key informant interviews, oral histories and participants observation. Secondary sources such as government reports were also used. The results indicate that institutional changes have resulted into resource use conflicts and the challenge is that these conflicts have been increasing. The types of conflicts included micro-macro conflicts between conservation authorities and resource users, inter-micro micro conflicts between farmers and between farmers and herders and intra-micro micro conflicts between people in the same family or household. The factors that increased the likelihood of institutional changes included political, technological and distance to markets. The study recommends ecosystem based institutional framework that is capable of accommodating the changes, improving people’s welfare and sustainable management of the CPR in the study area. The opportunity that is presented by the current policy changes where power is devolved to local resource users and stakeholders can be utilized to achieve the desired goals of sustainable management of the CPR.