DEPARTMENT OF FOREST RESOURCES MANAGEMENT
Permanent URI for this communityhttps://repository.ui.edu.ng/handle/123456789/457
Browse
3 results
Search Results
Item Population pattern and phenological behaviours for selected medicinal plants in Nigeria; implications for ex-situ conservation(2013) Oni, P.I.; Jimoh, S.O.; Adebisi, L.A.Recent developments indicated increasing gene-pool depletion for most medicinal plants in Nigeria despite their pharmaceuticals and therapeutic potentials. Initial socio-economic study involving three countries (Nigeria, Ghana and Republic of Benin) identified ten most frequently used medicinal plants. This list was superimposed on a vegetation map of Nigeria for the production of a distribution map ahead of an eco-geographic survey for population and phenological studies. Sample sites were defined in east-west directions under different vegetation and land use types. Sample sizes of 50m x 50m quadrant were selected across the vegetation and land use types. Altogether 55 samples quadrats were recorded across the zones; Lowland rainforest (20), Derived savanna (16), Sudan savanna (13) and Guinea savannah (6). A total of 196 individuals were recorded across the four ecological zones, rainforest 66 (33.67%) and least in Sudan savanna 13 individuals (6.63%). On land use basis, plantation forest recorded the highest in the lowland rainforest zone and least in sacred groove with similar trend in Derived savanna. In Guinea savanna, farm lands had the highest number of individuals while forest plantation accounted for the highest in Sudan savanna. Flowering duration varied greatly, ranging from (8.42 ±0.83) days to (45.25 ±5.77) days. Fruiting patterns ranged between (14.44± 4.28 to 145.87± 8.76) days. The need for adequate phenological information ahead of ex-situ conservation programme is desirable. Low stocking density observed across the range and land use types is implicated for holistic conservation strategies and sustainabilityItem Community Based Forest Management as a Tool for Sustainable Forest Management in Cross River State, Nigeria(Faculty of Agriculture, University of llorin, 2013) Jimoh, S. O.; Abi, E. A.Community-Based Forest Management (CBFM) in Cross River State (CRS) was investigated with a view to understanding its efficiency and effectiveness as a tool for sustainable forest management in the State. Four sets of questionnaire were administered to forestry officials; forest edge communities; timber dealers/saw millers: and relevant Non-Governmental Originations (NGOs).Three-stage sampling technique was adopted to sample six communities. The stages of sampling included: senatorial districts, Local Government Areas and communities. Data collected were analysed using descriptive statistics. The performance of CBFM was assessed against the ATO/ITTO’s Criteria and Indicators for the Sustainable Management of African Natural Tropica1 Forests. Results show that the average size of Community forests was between 101 and over 1000 ha per community. The level of awareness about community forest management was about 96% while 86% of the respondents participated in CBFM activities. The most significant gain of CBFM has been the meaningful partnership between the Cross River State Forestry Commission (CRSFC) and the forest edge communities in protecting and managing the forest resources. The existing benefit- sharing formula of CBFM proceeds is 1:4 in favour of government for government- established plantations, while communities have 7:3 of proceeds derived from community forests. The current sharing formula for the products obtained from reserved natural forests is 1:1. We suggest that a mutually acceptable formula should be worked out among the stakeholders. Some of the problems and challenges confronting the implementation of CBFM in the state include: inadequate encouragement and Cooperation among some members of the communities: inadequate incentives (seedlings, etc) and equipment (farm tools, etc); and capacity building; insufficient monitoring and evaluation by the relevant staff of the Forestry Commission. CBFM has done fairly well in certain aspects of sustainable forest management. However, aspects of maintenance of multiple functions of forests; creation of enabling environment; state economic and fiscal policies, policy to encourage forestry enterprises; effective monitoring and evaluation of forest management policy and adequate mechanisms for law enforcement have to be taken more seriously if CBFM v would serve as a veritable tool for sustainable forest management in Cross river State, NigeriaItem Assessment of regeneration potential of Hibiscus sabdariffa L. under established ecosystems in Cameroon(2012) Anjah, G. M.; Ogunsanwo, O. Y.; Jimoh, S. O.; Forjoh, J. N.; Tsombou, F. M.Hibiscus sabdariffa is a non-timber-forest-plant (NTFP) that has the potential of producing fibers good in paper-making. Germination and growth potentials of H. sabdariffa under farmland, fallowland, plantation and forest ecosystems were studied. Seeds of H. sabdariffa were sown to assess germination percentage, germination rate, germination time and velocity coefficient on established plots of each ecosystem. Seedlings were randomly selected to measure growth and yield parameters of height, diameter, leaf number, fresh and dry weights. Data were subjected to ANOVA and means separated by LSD at P = 0.05. Values of germination percentage for fallowland (17.5) were significantly different from those of farmland (19.4) and plantation (19.1) ecosystems, while natural forest (18.9) had an interactive significance with farmland, plantation and fallowland. There was no significant difference between germination times among the ecosystems, but the coefficient velocity and rate of germination among the ecosystems were significantly different. There was a significant variation in growth and yield values among the ecosystems. However, only seedlings on farmland and fallowland survived with a survival rate of 96 to 86%, respectively. H. sabdariffa can thus, be sustainably regenerated on farmland and fallowland ecosystems for the extraction of stem fibres for paper-making