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Analysis of sales, costs and demands for timber species in selected timber markets of Plateau State, Nigeria

Oludare Adedire
Oludare Adedire
, 
Yahaya Sadiku
Yahaya Sadiku
, 
Adedayo Stephen Popoola
Adedayo Stephen Popoola
, 
Afolabi Ola Oladejo
Afolabi Ola Oladejo
, 
Godfrey Chiabuotu Onuwa
Godfrey Chiabuotu Onuwa
, 
Jacob Jepthah Mbah
Jacob Jepthah Mbah
 oraz 
Gbenga Kola Sikiru
Gbenga Kola Sikiru
   | 12 gru 2023
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Article Category: Original Article
Data publikacji: 12 gru 2023
Zakres stron: 179 - 186
Otrzymano: 12 lip 2022
Przyjęty: 08 sie 2023
DOI: https://doi.org/10.2478/ffp-2023-0018
Słowa kluczowe
© 2023 Oludare Adedire et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Schematic representation of design framework
Schematic representation of design framework

Figure 2.

Cost per timber species in surveyed markets of Plateau state, Nigeria
Cost per timber species in surveyed markets of Plateau state, Nigeria

Figure 3.

Timber sales of surveyed timber markets of Plateau State, Nigeria
Timber sales of surveyed timber markets of Plateau State, Nigeria

F-test statistics for timber sales and associated variables at α = 5% level of significance

Modela Sum of squares df Mean square F p-value
Regression 612.182 4 153.045 100.072 0.000(b)++
Residual 601.037 393 1.529
Total 1213.219 397

Response of timber sales to demand, cost, stored quantity and spoiled quantity of timber in selected timber markets of Plateau State

Modela R R2 Adjusted R2 Std error of the estimate
1 0.710b 0.505 0.500 1.237

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

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

t-test statistics of timber sales when associated with predictor variables

Modela B Std error Beta t p-value Lower bound Upper bound
(constant) 0.346 0.193 1.788 0.074 ++ 0.034 0.725
Cost per timber 0.160 0.055 0.114 2.898 0.004++ 0.051 0.268
Demand for timber 0.413 0.044 0.407 9.322 0.000++ 0.326 0.500
Stored timber 0.287 0.042 0.307 6.895 0.000++ 0.205 0.369
Spoiledtimber 0.087 0.040 0.081 2.177 0.030++ 0.008 0.165
eISSN:
2199-5907
ISSN:
0071-6677
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Life Sciences, Plant Science, Medicine, Veterinary Medicine
Kanał RSS czasopisma