Figure 1.
Schematic representation of design framework
Table 1.
Demand for timber species by pieces demanded monthly in selected timber markets of Plateau State
| Timber species | 1–100 pieces | 101–200 pieces | 201–300 pieces | 301–400 pieces | 401–500 pieces | Above 500 pieces | Total | % demands from consumers |
|---|---|---|---|---|---|---|---|---|
| Khaya senegalensis (mahogany) | 35 | 52 | 43 | 7 | 13 | 29 | 179 | 44.8 |
| Triplochiton scleroxylon (obeche) | 12 | 24 | 15 | 10 | 0 | 9 | 70 | 17.5 |
| Prunus avium (cherry) | 3 | 5 | 3 | 0 | 0 | 1 | 12 | 3.0 |
| Milicia excels (iroko) | 5 | 7 | 4 | 1 | 2 | 5 | 24 | 6.0 |
| Betula pendula (birch) | 0 | 1 | 0 | 0 | 1 | 2 | 4 | 1.0 |
| Quercus robur (oak) | 2 | 0 | 0 | 0 | 0 | 4 | 6 | 1.5 |
| Juglans regia (walnut) | 0 | 1 | 0 | 0 | 0 | 1 | 2 | 0.5 |
| Cedrus deodara (cedar) | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0.3 |
| Others | 5 | 14 | 37 | 11 | 3 | 32 | 102 | 25.5 |
| Total | 62 | 105 | 102 | 29 | 19 | 83 | 400 | 100.0 |
Figure 2.
Cost per timber species in surveyed markets of Plateau state, Nigeria
Table 2.
Pairwise PPMC of cost per timber, demand, quantity of timber stored and quantity spoiled with timber sales in selected timber markets of Plateau State
| PPMC | Cost per timber | Demand for timber | Stored timber species | Spoiled timber species |
|---|---|---|---|---|
| Timber sales | 0.381 | 0.634 | 0.592 | 0.265 |
Table 3.
Response of timber sales to demand, cost, stored quantity and spoiled quantity of timber in selected timber markets of Plateau State
Table 4.
F-test statistics for timber sales and associated variables at α = 5% level of significance
Table 5.
t-test statistics of timber sales when associated with predictor variables
Figure 3.
Timber sales of surveyed timber markets of Plateau State, Nigeria