Stephen Adu-Bredu
I am a Chief Research Scientist of the Forestry Research Institute of Ghana (FORIG) of the Council for Scientific and Industrial Research (CSIR), a Professor at the CSIR College of Science and Technology (Affiliated to the University of Cape Coast, Ghana), and was Deputy Director of FORIG from January 2013 to June 2015. I also lecture at the Climate Change and Land Use Doctoral programme (WASCAL) of the Civil Engineering Department of the Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
I obtained my BSc degree in Natural Resources Management from the then University of Science and Technology, Kumasi, Ghana in 1988. I proceeded to Nagoya University, Japan to pursue graduate programmes and obtained Master and Doctoral degrees in Agricultural Sciences, majoring in Forestry, in 1994 and 1997, respectively. I have been engaged in research and teaching, but skewed towards research.
My research work is focused on System Ecology, Site Productive Capacity of Planted Forest, and Climate Change Related Research in the Agriculture, Forestry and Other Land Uses (AFOLU) sector. I have been collaborating with some universities in Europe and elsewhere in various research work. Notably among them are University of Oxford, University of Liverpool, University of Exeter, University of Birmingham and University of Pretoria. I have just established and carried out forest carbon inventory in 38 1-ha Permanent Sample Plots covering all the eco-climatic zones of Ghana, under the auspices of the Food and Agricultural Organization of the United Nations. With the exception of Sahel Savannah, the eco-climatic zones of Ghana is almost a reflection of that of West Africa. In collaboration with University of Exeter a 50-ha plot have been established in the Wet Evergreen zone, and variety of assessments being carried out.
I obtained my BSc degree in Natural Resources Management from the then University of Science and Technology, Kumasi, Ghana in 1988. I proceeded to Nagoya University, Japan to pursue graduate programmes and obtained Master and Doctoral degrees in Agricultural Sciences, majoring in Forestry, in 1994 and 1997, respectively. I have been engaged in research and teaching, but skewed towards research.
My research work is focused on System Ecology, Site Productive Capacity of Planted Forest, and Climate Change Related Research in the Agriculture, Forestry and Other Land Uses (AFOLU) sector. I have been collaborating with some universities in Europe and elsewhere in various research work. Notably among them are University of Oxford, University of Liverpool, University of Exeter, University of Birmingham and University of Pretoria. I have just established and carried out forest carbon inventory in 38 1-ha Permanent Sample Plots covering all the eco-climatic zones of Ghana, under the auspices of the Food and Agricultural Organization of the United Nations. With the exception of Sahel Savannah, the eco-climatic zones of Ghana is almost a reflection of that of West Africa. In collaboration with University of Exeter a 50-ha plot have been established in the Wet Evergreen zone, and variety of assessments being carried out.
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ecological zones of Ghana (moist semi-deciduous forest, MSDF; dry semi-deciduous forest, DSDF; transition savanna forest; and savanna forest). Colour measurements were made on strips obtained from logs cut from the felled trees. Chemical analyses were performed on soil samples obtained from the rooting zones of the teak trees. Both environmental and tree age effects on colour were observed. However, environmental factors had a stronger effect on the colour of teak heartwood than the stand age. Although there were no significant differences between teak wood colour in moist semi-deciduous forest and transition savanna forest on one hand, and dry semi-deciduous forest and savanna forest on the other hand, in general, environment seemed to be an important factor, with teak wood colour being relatively darker in wetter areas than drier ones. Wood colour parameters showed differing relationships with soil chemical properties ranging from no relation through weak to moderate relations. For instance, soil pH decreased moderately with decreasing L* values (increasing darkness), indicating some evidence that teak wood colour may be predicted from soil pH. However, there was very little evidence that teak wood colour could be predicted from soil exchangeable cations (Ca2+, Mg2+, Na+ and K+). The range of observed site quality was rather limited. Nevertheless, richer plantation sites showed a tendency toward darker and less red heartwood.
ecological zones of Ghana (moist semi-deciduous forest, MSDF; dry semi-deciduous forest, DSDF; transition savanna forest; and savanna forest). Colour measurements were made on strips obtained from logs cut from the felled trees. Chemical analyses were performed on soil samples obtained from the rooting zones of the teak trees. Both environmental and tree age effects on colour were observed. However, environmental factors had a stronger effect on the colour of teak heartwood than the stand age. Although there were no significant differences between teak wood colour in moist semi-deciduous forest and transition savanna forest on one hand, and dry semi-deciduous forest and savanna forest on the other hand, in general, environment seemed to be an important factor, with teak wood colour being relatively darker in wetter areas than drier ones. Wood colour parameters showed differing relationships with soil chemical properties ranging from no relation through weak to moderate relations. For instance, soil pH decreased moderately with decreasing L* values (increasing darkness), indicating some evidence that teak wood colour may be predicted from soil pH. However, there was very little evidence that teak wood colour could be predicted from soil exchangeable cations (Ca2+, Mg2+, Na+ and K+). The range of observed site quality was rather limited. Nevertheless, richer plantation sites showed a tendency toward darker and less red heartwood.