The economic impacts of mangrove management project in Tanga, Tanzania
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Date
2007
Authors
Journal Title
Journal ISSN
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Publisher
Sokoine University of Agriculture
Abstract
This study whose aim was to assess the economic impact of the Mangrove
management project in Tanga Tanzania was based on questionnaire survey to
households head, informal survey and secondary data. Data were collected from a
random sample of 104 household heads. PRA., questionnaire survey and checklist
was the main tools used in collection of socio-economic data. Data from household
survey were analyzed using Statistical Package for Social Science (SPSS). Cross
tabulations were performed to establish significant relationships between villages
responses. Content analysis was also used for qualitative data. The result of the study
demonstrste the importance of the mangrove ecosystem resources to the livelihood
of the local communities. About 40% of people interviewed depend on fisheries as
main source of income and fisheries contributes about 48% of the total family
income in the study area. Out of 104 respondents about 84% of them indicated that
there is a direct relationship between the restoration of the mangrove and increase in
fish catch. A total of 1500ha of degraded mangrove area have been restored through
replanting
while about 80 ha of farmland have been planted w'ith non-mangrove
poles and fuelwood trees species. About 68% of the residential houses in the study
area were constructed using mangrove poles. Evidence indicates that mangroves
poles will continue to be the main construction material due to the prevailing
economic hardship in the study area. Majority of the respondents (82%) indicated
increased demand in quantity and quality of mangrove poles. Using Net Present
Value (NPV) as a criterion the project was found to be economically efficient at a
rate of discount of 10% for a 20 years time horizon. The net present value was about
TAS 618.7 millions at the discount rate of 10% for a 20 years time horizon but
dropped by 76.5% when the discount rate was increased to 20%. The internal rate of
return was about 33%. Sensitivity analysis indicated that the projects NPV would fall
to zero if the project benefit were reduced by 54.3%.
Description
Dissertation
Keywords
Mangrove ecosystem resources, FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Plant and forest protection, Mangrove management project