8. Inventory Results (High Forest)
Tree volume estimation data were used to estimate the volume of individual trees of the high forest. Several equations were tested but most were derived from the basic one below:
ln (Vn) = a + b ln (Hn) + C In (D)
Where Vn = net volume
Hn = net height
D = Diameter (cm) at breast height
(dbh, 1.3m) or above buttress.
These equations were used to calculate Stand Tables, Stand Volumes, Industrial volumes, Mean annual Increment (MAI) and Annual Allowable cut (AAC).
8.1.1. Stand Tables
The average number of stems per hectare by forest type, density class and utility class is shown in Table 6 while Table 7 depicts the average basal area (M3) per unit area by forest type, density class and utility class.
Table 6. Average number of stems per unit area (ha) by forest type, density class, and utility class.
|
Productivity Zone |
Forest Type |
Density Class |
Utility Classes 1-5 |
Utility Classes 6.91 |
Total |
|
East |
Freshwater swamp |
A2 |
33.3 |
250.0 |
283.3 |
|
West |
" |
A2 |
77.7 |
88.1 |
165.8 |
|
East/West3 |
" |
A2 |
67.4 |
151.6 |
219.0 |
|
East |
Lowland |
1 |
51.5 |
108.3 |
159.8 |
|
West |
" |
1 |
84.6 |
81.1 |
166.4 |
|
East/West3 |
" |
1 |
79.7 |
86.4 |
166.1 |
|
East |
" |
2 |
54.4 |
83.9 |
138.3 |
|
West |
" |
2 |
7.01 |
49.8 |
119.9 |
|
East/West3 |
" |
2 |
62.8 |
66.4 |
129.2 |
|
East |
" |
3 |
48.1 |
35.4 |
83.5 |
|
West |
" |
3 |
55.3 |
34.7 |
90.0 |
|
East/West3 |
" |
3 |
52.0 |
35.1 |
87.1 |
|
East/West3 |
Mangrove |
A2 |
0.0 |
190.7 |
190.7 |
|
East |
Riparian |
1 |
24.0 |
80.8 |
104.8 |
|
West |
" |
1 |
4.0 |
84.0 |
88.0 |
|
East/West3 |
" |
1 |
18.2 |
81.7 |
99.9 |
|
East |
" |
2 |
- |
- |
- |
|
West |
" |
2 |
19.7 |
22.0 |
41.7 |
|
East/West3 |
" |
2 |
19.4 |
21.9 |
41.3 |
|
East |
" |
3 |
5.3 |
16.8 |
21.9 |
|
West |
" |
3 |
6.6 |
64.3 |
70.9 |
|
East/West3 |
" |
3 |
5.6 |
34.7 |
40.3 |
1
Utility class 9 includes all previously unclassified species2
Average of all density classes3
Weighed average (by number of plots) of productivity zones east and west.4
No data availableSource: Beak Consultants 1998, Forest Resources Study, Main Report Volume II (Draft).
Table 7: Average basal area (m2) per unit area (ha) by forest type, density class and utility class.
|
Productivity Zone |
Forest Type |
Density Class |
Utility Classes 1-5 (m2/ha) |
Utility Classes 6-91 |
Total |
|
East |
Freshwater swamp |
A2 |
2.28 |
14.20 |
16.48 |
|
West |
" |
A2 |
14.49 |
15.39 |
29.88 |
|
East/West3 |
" |
A2 |
11.17 |
15.07 |
26.24 |
|
East |
Lowland rain |
1 |
8.04 |
10.69 |
18.73 |
|
West |
" |
1 |
16.45 |
7.08 |
23.53 |
|
East/West3 |
" |
1 |
15.14 |
7.64 |
22.78 |
|
East |
" |
2 |
9.24 |
9.36 |
18.60 |
|
West |
" |
2 |
12.28 |
4.48 |
16.76 |
|
East/West3 |
" |
2 |
10.82 |
6.83 |
17.65 |
|
East |
" |
3 |
4.33 |
2.75 |
7.08 |
|
West |
" |
3 |
13.10 |
3.21 |
16.31 |
|
East/West3 |
" |
3 |
8.71 |
2.97 |
11.68 |
|
East/West3 |
Mangrove |
A2 |
0.00 |
14.57 |
14.57 |
|
East |
Riparian |
1 |
4.50 |
9.92 |
14.42 |
|
West |
" |
1 |
0.22 |
7.29 |
7.51 |
|
East/West3 |
" |
1 |
3.27 |
9.17 |
12.44 |
|
East4 |
" |
2 |
- |
- |
- |
|
West |
" |
2 |
7.06 |
5.24 |
12.30 |
|
East/West3 |
" |
2 |
7.06 |
5.24 |
12.30 |
|
East |
" |
3 |
0.97 |
3.20 |
4.17 |
|
West |
" |
3 |
0.88 |
5.13 |
6.01 |
|
East/West3 |
" |
3 |
0.93 |
3.92 |
4.85 |
Source: Beak Consultants 1998, Forest Resources Study, Main Report Vol. II, page 9-1
1
Utility Class 9 includes all previously unclassified species.2
Average of all density classes.3
Weighted average (by numbers of plots) of productivity zones east and west.4
No data available.8.1.2. Standing Volume
From the FRS, Beak Consultants have developed two types of volume tables for each of the 11 high forest species groups identified from the inventory data. They include double entry (Table 8) and single entry (Table 9) volume tables. The single entry tables are diameter based only while the double entry tables relate diameter to height. It should be noted that these volume tables exclude the bark. Table 10 is the high forest gross volumes (excluding bark) by the forest designation and type.
Table 8: Double entry volume table Species group: 1
|
Dia. Class (cm) dbh |
Volume (cu.m) by Height Class (m) |
|||||||||
|
1-1.9 |
2-2.9 |
3-3.9 |
4-4.9 |
5-5.9 |
6-6.9 |
7-7.9 |
8-8.9 |
9-9.9 |
10-10.9 |
|
|
0.0-4.9 |
0.000 |
0.001 |
0.002 |
0.003 |
0.004 |
0.006 |
0.008 |
0.010 |
0.013 |
0.016 |
|
5.0-9.9 |
0.000 |
0.002 |
0.003 |
0.006 |
0.009 |
0.013 |
0.018 |
0.023 |
0.030 |
0.037 |
|
10.0-14.9 |
0.001 |
0.002 |
0.005 |
0.009 |
0.014 |
0.020 |
0.028 |
0.037 |
0.047 |
0.058 |
|
15.0-19.9 |
0.001 |
0.003 |
0.007 |
0.012 |
0.019 |
0.027 |
0.038 |
0.050 |
0.063 |
0.078 |
|
20.0-24.9 |
0.001 |
0.004 |
0.008 |
0.015 |
0.024 |
0.034 |
0.047 |
0.062 |
0.079 |
0.098 |
|
25.0-29.9 |
0.001 |
0.005 |
0.010 |
0.018 |
0.028 |
0.041 |
0.057 |
0.074 |
0.095 |
0.118 |
|
30.0-34.9 |
0.002 |
0.005 |
0.012 |
0.021 |
0.033 |
0.048 |
0.066 |
0.087 |
0.111 |
0.137 |
|
35.0-39.6 |
0.002 |
0.006 |
0.013 |
0.024 |
0.038 |
0.055 |
0.075 |
0.099 |
0.126 |
0.157 |
|
40.0-44.9 |
0.002 |
0.007 |
0.015 |
0.027 |
0.042 |
0.061 |
0.084 |
0.111 |
0.141 |
0.175 |
|
45.0-49.9 |
0.002 |
0.007 |
0.016 |
0.029 |
0.046 |
0.068 |
0.093 |
0.122 |
0.156 |
0.194 |
|
50.0-54.9 |
0.002 |
0.008 |
0.018 |
0.032 |
0.051 |
0.074 |
0.102 |
0.134 |
0.171 |
0.213 |
|
55.0-59.9 |
0.003 |
0.009 |
0.020 |
0.035 |
0.055 |
0.080 |
0.111 |
0.146 |
0.186 |
0.231 |
|
60.0-64.9 |
0.003 |
0.009 |
0.021 |
0.038 |
0.060 |
0.087 |
0.119 |
0.157 |
0.200 |
0.249 |
|
65.0-69.9 |
0.003 |
0.010 |
0.023 |
0.041 |
0.064 |
0.093 |
0.128 |
0.169 |
0.215 |
0.268 |
|
70.0-74.9 |
0.003 |
0.011 |
0.024 |
0.043 |
0.068 |
0.099 |
0.136 |
0.180 |
0.230 |
0.286 |
|
75.0-79.9 |
0.003 |
0.011 |
0.026 |
0.046 |
0.073 |
0.106 |
0.145 |
0.191 |
0.244 |
0.304 |
|
80.0-84.9 |
0.003 |
0.012 |
0.027 |
0.049 |
0.077 |
0.112 |
0.154 |
0.202 |
0.258 |
0.321 |
|
85.0-89.9 |
0.004 |
0.013 |
0.029 |
0.051 |
0.081 |
0.118 |
0.162 |
0.214 |
0.273 |
0.339 |
|
90.0-94.9 |
0.004 |
0.013 |
0.030 |
0.054 |
0.085 |
0.124 |
0.170 |
0.225 |
0.287 |
0.357 |
|
95.0-99.9 |
0.004 |
0.014 |
0.032 |
0.057 |
0.089 |
0.130 |
0.179 |
0.236 |
0.301 |
0.374 |
|
100+ |
0.004 |
0.015 |
0.033 |
0.059 |
0.094 |
0.136 |
0.187 |
0.247 |
0.315 |
0.392 |
Source: Beak Consultants 1998. Forest Resources Study, Vol. IV (Appendixes).
Table 9: Single entry volume table Species group 1
|
Species Group |
Diameter Class (cm) |
Volume (cu.m) |
|
1 |
0.0-4.9 |
0.002 |
|
1 |
5.0-9.9 |
0.013 |
|
1 |
10.0-14.9 |
0.043 |
|
1 |
15.0-19.9 |
0.097 |
|
1 |
20.0-24.9 |
0.181 |
|
1 |
25.0-29.9 |
0.298 |
|
1 |
30.0-34.9 |
0.452 |
|
1 |
35.0-39.9 |
0.646 |
|
1 |
40.0-44.9 |
0.885 |
|
1 |
45.0-49.9 |
1.170 |
|
1 |
50.0-54.9 |
1.505 |
|
1 |
55.0-59.9 |
1.891 |
|
1 |
60.0-64.9 |
2.333 |
|
1 |
65.0-69.9 |
2.832 |
|
1 |
70.0-74.9 |
3.390 |
|
1 |
75.0-79.9 |
4.010 |
|
1 |
80.0-84.9 |
4.694 |
|
1 |
85.0-89.9 |
5.444 |
|
1 |
90.0-94.9 |
6.262 |
|
1 |
95.0-99.9 |
7.151 |
Source: Beak Consultants 1998. Forest Resources Study, Vol. IV (Appendices).
Table 10 – High forest gross timber volumes (excluding bark) by forest designation and forest type.
|
Forest Land Designation |
Forest Type |
Area (ha) |
Gross Volume (m3) |
|
Forest Reserve |
Freshwater swamp |
224369 |
23353102 |
|
Lowland rain |
757740 |
98599957 |
|
|
Riparian |
2547 |
169101 |
|
|
Free Area |
Freshwater swamp |
1424739 |
150814914 |
|
Lowland rain |
912094 |
109544813 |
|
|
Mangrove |
5314 |
443860 |
|
|
Riparian |
80368 |
4526678 |
|
|
Game Reserve |
Lowland rain |
12365 |
1633706 |
|
Riparian |
5492 |
386513 |
|
|
National Park |
Lowland rain |
369412 |
46878597 |
|
Total |
Source: Beak Consultants 1998. Forest Resources Study, Vol. II page 9-3.
8.1.3. Industrial Volume Calculations (High Forest)
A sample of the Industrial Timber Volumes (by diameter class) is shown in Table 11.
Table 11: Industrial volume for east productivity zone by traditional utility classes and diameter classes.
|
Forest Type |
Utility Class |
Volume (cu.m) by Diameter Class (cm) |
Total Volume (cm) |
Butress Volume (cu.m) |
||
|
60-79 |
80-99 |
>100 |
||||
|
Freshwater Swamp Forest |
UT1 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT2 |
1354735 |
0 |
0 |
1354735 |
0 |
|
Freshwater Swamp Forest |
UT3 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT4 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT5 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT6 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT7 |
2720724 |
447889 |
0 |
3168612 |
0 |
|
Freshwater Swamp Forest |
UT8 |
0 |
0 |
0 |
0 |
0 |
|
Freshwater Swamp Forest |
UT9 |
929612 |
0 |
0 |
929612 |
0 |
|
Lowland Rainforest |
UT1 |
1230532 |
85299 |
415202 |
1731034 |
0 |
|
Lowland Rainforest |
UT2 |
113221 |
35519 |
190545 |
339285 |
0 |
|
Lowland Rainforest |
UT3 |
1063640 |
660970 |
114654 |
1839263 |
0 |
|
Lowland Rainforest |
UT4 |
1856426 |
1014619 |
3679175 |
6550220 |
0 |
|
Lowland Rainforest |
UT5 |
21143 |
64013 |
7184720 |
7269876 |
0 |
|
Lowland Rainforest |
UT6 |
0 |
0 |
0 |
0 |
0 |
|
Lowland Rainforest |
UT7 |
7606808 |
836830 |
546678 |
8990315 |
0 |
Source: Beak Consultants 1998. Forest Resources Study appendix 2-9-12-1
However, the summary of high forest industrial volume is depicted in Table 12.
Table 12 High Forest Industrial Volume Summary.
|
Forest Type |
Utility Classes 1-5 (m3) |
Utility Classes 6-9 (m3) |
Total Volume (m3) |
Buttress Volume (m3) |
|
Freshwater swamp |
41,280,434 |
27,180,686 |
68,461,120 |
1,221,216 |
|
Lowland rain |
96,464,890 |
17,748,828 |
114,213,718 |
5,003,505 |
|
Mangrove |
0 |
77,626 |
77,626 |
477 |
|
Riparian |
1,737,639 |
1,335,717 |
3,073,356 |
11,528 |
Source: Beak Consultants 1998. Forest Resources Study of Nigeria Vol. 2, page 9 –4.
8.2. Inventory Results (Plantations)
Inventory data from plantations in the study area were used to estimate tree volumes of plantations. The processes followed by Beak to accomplish this task include :
Preliminary data analysis
Data screening
Correlation analysis
Construction of site index curves
Development of site index equations
Modelling of volume-Age Relationship and
Yield projection models.
It is worth noting that only six plantation species were considered for subsequent analysis. These were Gmelina arborea, Tectona grandis, Pinus spp., Eucalyptus spp., Terminalia ivorensis and Nauclea diderrichii.
8.2.1. Stand Volume Table, Major Species
Stand Volume Tables were developed for each of the six major plantation species. Table 13 depicts the Stand Volume Table for Gmelina arborea.
Table 13: Stands volumes table for Gmelina arborea
|
Age (years) |
Volume (m3) |
Age (years) |
Volume (m3) |
|
2 |
115.7 |
40 |
647.8 |
|
4 |
156.4 |
42 |
648.5 |
|
6 |
205.8 |
44 |
649.0 |
|
8 |
262.5 |
46 |
649.3 |
|
10 |
323.4 |
48 |
649.5 |
|
12 |
384.5 |
50 |
649.7 |
|
14 |
441.5 |
52 |
649.8 |
|
16 |
491.5 |
54 |
649.9 |
|
18 |
532.4 |
56 |
649.9 |
|
20 |
564.7 |
58 |
650.0 |
|
22 |
589.2 |
60 |
650.0 |
|
24 |
607.1 |
62 |
650.0 |
|
26 |
620.1 |
64 |
650.0 |
|
28 |
629.2 |
66 |
650.0 |
|
30 |
635.6 |
68 |
650.0 |
|
32 |
640.1 |
70 |
650.0 |
|
34 |
643.2 |
72 |
650.0 |
|
36 |
645.3 |
74 |
650.0 |
|
38 |
646.8 |
76 |
650.0 |
Source: Beak Consultants 1998. Forest Resources study. Appendices (Draft).
8.2.2. Yield Projection, Major Species
Yield Projection Tables were also developed for each of the six major species at different site indices and classes. Table 14 shows the Yield Projection Table for Tectona grandis (site index, 28, class 1).
Table 14 – Yield (m3/ha) projection table for Tectona grandis, site index 28, site class 1.
|
Age (year) |
Basal Area (m2/ha) |
||||||||||||||||||||
|
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
26 |
28 |
30 |
32 |
34 |
36 |
38 |
40 |
42 |
44 |
|
|
4 |
91.6 |
108.3 |
125.0 |
141.7 |
158.4 |
175.1 |
191.9 |
208.6 |
225.3 |
242.0 |
258.7 |
275.4 |
292.1 |
308.8 |
325.6 |
342.3 |
359.0 |
375.7 |
392.4 |
409.1 |
425.8 |
|
6 |
97.8 |
114.5 |
131.3 |
148.0 |
164.7 |
181.4 |
198.1 |
214.8 |
231.5 |
248.2 |
265.0 |
281.7 |
298.4 |
315.1 |
331.8 |
348.5 |
365.2 |
382.0 |
398.7 |
415.4 |
432.1 |
|
8 |
104.0 |
120.7 |
137.4 |
154.1 |
170.8 |
187.6 |
204.3 |
221.0 |
237.7 |
254.4 |
271.1 |
287.8 |
304.5 |
321.3 |
338.0 |
354.7 |
371.4 |
388.1 |
404.3 |
421.5 |
438.3 |
|
10 |
110.1 |
126.8 |
143.5 |
160.2 |
176.9 |
193.6 |
210.3 |
227.1 |
243.8 |
260.5 |
277.2 |
293.9 |
310.6 |
327.3 |
344.0 |
360.8 |
377.5 |
394.2 |
410.9 |
427.6 |
444.3 |
|
12 |
116.1 |
132.8 |
149.5 |
166.2 |
182.9 |
199.6 |
216.3 |
233.0 |
249.8 |
266.5 |
283.2 |
299.9 |
316.6 |
333.3 |
350.0 |
366.7 |
383.5 |
400.2 |
416.9 |
433.6 |
450.3 |
|
14 |
122.0 |
138.7 |
155.4 |
172.1 |
188.8 |
205.5 |
222.2 |
238.9 |
255.7 |
272.4 |
289.1 |
305.8 |
322.5 |
339.2 |
355.9 |
372.6 |
389.4 |
406.1 |
422.8 |
439.5 |
456.2 |
|
16 |
127.8 |
144.5 |
161.2 |
177.9 |
194.6 |
211.3 |
228.0 |
244.8 |
261.5 |
278.2 |
294.9 |
311.6 |
328.3 |
345.0 |
361.8 |
378.5 |
395.2 |
411.9 |
428.6 |
445.3 |
462.0 |
|
18 |
133.5 |
150.2 |
166.9 |
183.6 |
200.4 |
217.1 |
233.8 |
250.5 |
267.2 |
283.9 |
300.6 |
317.3 |
334.1 |
350.8 |
367.5 |
384.2 |
400.9 |
417.6 |
434.3 |
451.1 |
467.0 |
|
20 |
139.2 |
155.9 |
172.6 |
189.3 |
206.0 |
222.7 |
239.4 |
256.1 |
272.9 |
289.6 |
306.3 |
323.0 |
339.7 |
356.4 |
373.1 |
389.9 |
406.6 |
423.3 |
440.0 |
456.7 |
473.4 |
|
22 |
144.7 |
161.4 |
178.2 |
194.9 |
211.6 |
228.3 |
245.0 |
261.7 |
278.4 |
295.1 |
311.9 |
328.6 |
345.3 |
362.0 |
378.7 |
395.4 |
412.1 |
428.8 |
445.6 |
462.3 |
479.0 |
|
24 |
150.2 |
166.9 |
183.6 |
200.4 |
217.1 |
233.8 |
250.5 |
267.2 |
283.9 |
300.6 |
317.3 |
334.1 |
350.8 |
367.5 |
384.2 |
400.9 |
417.6 |
434.3 |
451.1 |
467.8 |
484.5 |
|
26 |
155.6 |
172.3 |
189.1 |
205.8 |
222.5 |
239.2 |
255.9 |
272.6 |
289.3 |
306.0 |
322.8 |
339.5 |
356.2 |
372.9 |
389.6 |
406.3 |
423.0 |
439.8 |
456.5 |
473.2 |
489.9 |
|
28 |
161.0 |
177.7 |
194.4 |
211.1 |
227.8 |
244.5 |
261.2 |
278.0 |
294.7 |
311.4 |
328.1 |
344.8 |
361.5 |
378.2 |
394.9 |
411.7 |
428.4 |
445.1 |
461.8 |
478.5 |
495.2 |
|
30 |
166.2 |
182.9 |
199.6 |
216.4 |
233.1 |
249.8 |
266.5 |
283.2 |
299.9 |
316.6 |
333.4 |
350.1 |
366.8 |
383.5 |
400.2 |
416.9 |
433.6 |
450.3 |
467.1 |
483.8 |
500.5 |
|
32 |
171.4 |
188.1 |
204.8 |
221.5 |
238.3 |
255.0 |
271.7 |
288.4 |
305.1 |
321.8 |
338.5 |
355.3 |
372.0 |
388.7 |
405.4 |
422.1 |
438.8 |
455.5 |
472.2 |
489.0 |
505.7 |
|
34 |
176.5 |
193.2 |
209.9 |
226.7 |
243.4 |
260.1 |
276.8 |
293.5 |
310.2 |
326.9 |
343.6 |
360.4 |
377.1 |
393.8 |
410.5 |
427.2 |
443.9 |
460.6 |
477.4 |
494.1 |
510.8 |
|
36 |
181.6 |
198.3 |
215.0 |
231.7 |
248.4 |
265.1 |
281.8 |
298.5 |
315.3 |
332.0 |
348.7 |
365.4 |
382.1 |
398.8 |
415.5 |
432.3 |
449.0 |
465.7 |
482.4 |
499.1 |
515.8 |
|
38 |
186.5 |
203.2 |
219.9 |
236.7 |
253.4 |
270.1 |
286.8 |
303.5 |
320.2 |
336.9 |
353.6 |
370.4 |
387.1 |
403.8 |
420.5 |
437.2 |
453.9 |
470.6 |
487.4 |
504.1 |
520.8 |
|
40 |
191.4 |
208.1 |
224.8 |
241.6 |
258.3 |
275.0 |
291.7 |
308.4 |
325.1 |
341.8 |
358.5 |
375.3 |
392.0 |
408.7 |
425.4 |
442.1 |
458.8 |
475.5 |
492.2 |
509.0 |
525.7 |
Source: Beak Consultants 1998, Forest Resources Study of Nigeria, Vol. IV (Appendices).
8.3. Timber Supply From High Forests and Plantations
A summary of the timber supply from high forest in the FRS high forest states projected for 2000-2010, is shown by Table 15 while the summary of timber supply from plantations of FRS states are depicted in Table 16 while a summary of the total timer supply (from high forests and plantation) from FRS states is shown in Table 17.
Table 15 – Summary of the timber supply from high forests of the FRS high forest states, projected for the years 2000 and 2010.
|
2000 |
2010 |
|||||||||||
|
State |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
|
Abia |
378 |
2 |
21 |
15 |
38 |
416 |
378 |
2 |
21 |
15 |
38 |
416 |
|
Akwa Ibom |
278796 |
1328 |
13472 |
13080 |
27880 |
306676 |
278796 |
1328 |
13472 |
13080 |
27880 |
306676 |
|
Anambra |
60900 |
290 |
2241 |
3559 |
6090 |
66990 |
60900 |
290 |
2241 |
3559 |
6090 |
66990 |
|
Cross River |
111374 |
530 |
4955 |
5652 |
11137 |
122511 |
111374 |
530 |
4955 |
5652 |
11137 |
122511 |
|
Delta |
342279 |
1630 |
14128 |
18470 |
34228 |
376507 |
342279 |
1630 |
14128 |
18470 |
34228 |
376507 |
|
Edo |
5369994 |
25571 |
252178 |
259250 |
536999 |
5906993 |
5369994 |
25571 |
252178 |
259250 |
536999 |
5906993 |
|
Enugu/Ebonyi |
10605 |
51 |
599 |
411 |
1061 |
11666 |
10605 |
51 |
599 |
411 |
1061 |
11666 |
|
Imo |
1638 |
8 |
46 |
110 |
164 |
1802 |
1638 |
8 |
46 |
110 |
164 |
1802 |
|
Lagos |
8274 |
39 |
234 |
554 |
827 |
9101 |
8274 |
39 |
234 |
554 |
827 |
9101 |
|
Ondo/Ekiti |
3542028 |
16867 |
170482 |
166854 |
354203 |
3896231 |
3542028 |
16867 |
170482 |
166854 |
354203 |
3896231 |
|
Ogun |
270564 |
1288 |
12392 |
13376 |
27056 |
297620 |
270564 |
1288 |
12392 |
13376 |
27056 |
297620 |
|
Osun |
109211 |
520 |
5277 |
5124 |
10921 |
120132 |
109211 |
520 |
5277 |
5124 |
10921 |
120132 |
|
Oyo |
278796 |
1328 |
13472 |
13080 |
27880 |
306676 |
278796 |
1328 |
13472 |
13080 |
27880 |
306676 |
|
Rivers/Bayelsa |
611562 |
2912 |
17478 |
40766 |
61156 |
672718 |
611562 |
2912 |
17478 |
40766 |
61156 |
672718 |
|
Total |
10996399 |
52364 |
506975 |
540301 |
1099640 |
12096039 |
10996399 |
52364 |
506975 |
540301 |
1099640 |
12096039 |
Table 16 - Summary of the timber from plantations of the FRS states, projected for the years 2000 and 2010.
|
2000 |
2010 |
|||||||||||
|
State |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
|
Abia |
1199 |
1199 |
215808 |
0 |
217006 |
218205 |
1694 |
1694 |
171995 |
0 |
173689 |
175382 |
|
Adamawa |
1040 |
1040 |
34205 |
0 |
35244 |
36284 |
1180 |
1180 |
27271 |
0 |
28451 |
29631 |
|
Akwa Ibom |
5498 |
29218 |
12325 |
0 |
41543 |
47041 |
327 |
327 |
16332 |
0 |
16659 |
16986 |
|
Anambra |
6366 |
6366 |
127336 |
0 |
133702 |
140068 |
7556 |
7556 |
137346 |
0 |
144901 |
152457 |
|
Benue |
1658 |
4884 |
54655 |
0 |
59538 |
61196 |
1071 |
2905 |
56314 |
0 |
59220 |
60291 |
|
Cross River |
917 |
917 |
637914 |
0 |
638830 |
639747 |
1126 |
1126 |
646256 |
0 |
647382 |
648507 |
|
Delta |
424 |
0 |
94085 |
0 |
94085 |
94509 |
0 |
1776 |
120124 |
0 |
121900 |
121900 |
|
Edo |
2418 |
2418 |
896198 |
0 |
898617 |
901035 |
2619 |
2619 |
852307 |
0 |
854927 |
857546 |
|
Enugu/Ebonyi |
0 |
0 |
539483 |
0 |
539483 |
539483 |
0 |
1626 |
556914 |
0 |
558539 |
558539 |
|
Imo |
0 |
0 |
55850 |
0 |
55850 |
55850 |
0 |
0 |
56826 |
0 |
56826 |
56826 |
|
Kebbi |
3138 |
3138 |
6277 |
0 |
9415 |
12554 |
4720 |
3908 |
7816 |
0 |
11724 |
16444 |
|
Kaduna |
0 |
0 |
109088 |
0 |
109088 |
109088 |
0 |
0 |
116167 |
0 |
116167 |
116167 |
|
Kogi |
2471 |
3231 |
189150 |
0 |
192381 |
194852 |
2865 |
10348 |
88794 |
0 |
99142 |
102008 |
|
Kano |
5668 |
4759 |
13890 |
0 |
18649 |
24316 |
4808 |
7868 |
21092 |
0 |
28960 |
33768 |
|
Kwara |
836 |
1902 |
286609 |
0 |
288511 |
289347 |
1179 |
22082 |
292296 |
0 |
314379 |
315558 |
|
Lagos |
1861 |
1861 |
96332 |
0 |
98193 |
100054 |
2614 |
2614 |
5388 |
0 |
8002 |
10615 |
|
Niger |
308 |
308 |
295847 |
0 |
296155 |
296462 |
399 |
843 |
171805 |
0 |
172647 |
173046 |
|
Ondo/Ekiti |
122850 |
225276 |
872416 |
0 |
1097691 |
1220541 |
0 |
0 |
594893 |
0 |
594893 |
594893 |
|
Ogun |
148076 |
48383 |
1726178 |
0 |
1774561 |
1922637 |
131 |
1019 |
1380922 |
0 |
1381941 |
1382072 |
|
Osun |
5494 |
23417 |
288864 |
0 |
312280 |
317775 |
279 |
3298 |
182707 |
0 |
186005 |
186283 |
|
Oyo |
25640 |
25343 |
378199 |
0 |
403542 |
429182 |
33518 |
33518 |
124299 |
0 |
157818 |
191336 |
|
Plateau/Nasarawa |
1966 |
4950 |
48319 |
12274 |
65543 |
67509 |
2343 |
11792 |
42355 |
31367 |
85514 |
87857 |
|
Rivers/Bayelsa |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Taraba |
757 |
615 |
39125 |
0 |
39740 |
40497 |
0 |
1013 |
31301 |
0 |
31313 |
32313 |
|
Total |
338585 |
389225 |
7018153 |
12274 |
7419647 |
7758232 |
68429 |
119112 |
5701520 |
31367 |
5851999 |
5920425 |
Table 17: Summary of the timber supply (high forests and plantations) from FRS states, projected for the years 2000 and 2010.
|
2000 |
2010 |
|||||||||||
|
State |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
Fuelwood |
Poles |
Sawnwood |
Veneer |
Total without Fuelwood |
Total with Fuelwood |
|
Abia |
1577 |
1201 |
215829 |
15 |
217044 |
218621 |
2072 |
1696 |
172016 |
15 |
173727 |
175798 |
|
Adamawa |
1040 |
1040 |
34205 |
0 |
35244 |
36284 |
1180 |
1180 |
27271 |
0 |
28451 |
29631 |
|
Akwa Ibom |
284294 |
30546 |
25797 |
13080 |
69423 |
353717 |
279123 |
1655 |
29804 |
13080 |
44539 |
323662 |
|
Anambra |
67266 |
6656 |
129577 |
3559 |
139792 |
207058 |
68456 |
7846 |
139587 |
3559 |
150991 |
219447 |
|
Benue |
1658 |
4884 |
54655 |
0 |
59538 |
61196 |
1071 |
2905 |
56314 |
0 |
59220 |
60291 |
|
Cross River |
112291 |
1447 |
642869 |
5652 |
649967 |
762258 |
112500 |
1656 |
651211 |
5652 |
658519 |
771018 |
|
Delta |
342703 |
1630 |
108213 |
18470 |
128313 |
471016 |
342279 |
3406 |
134252 |
18470 |
156128 |
498407 |
|
Edo |
5372412 |
27989 |
1148376 |
259250 |
1435616 |
6808028 |
5372613 |
28190 |
1104485 |
259250 |
1391926 |
6764539 |
|
Enugu/Ebonyi |
10605 |
51 |
540082 |
411 |
540544 |
551149 |
10605 |
< P ALIGN="JUSTIFY">1677 |
557513 |
411 |
559600 |
570205 |
|
Imo |
1638 |
8 |
55896 |
110 |
56014 |
57652 |
1638 |
8 |
56872 |
110 |
56990 |
58628 |
|
Kebbi |
3138 |
3138 |
6277 |
0 |
9415 |
12554 |
4720 |
3908 |
7816 |
0 |
11724 |
16444 |
|
Kaduna |
0 |
0 |
109088 |
0 |
109088 |
109088 |
0 |
0 |
116167 |
0 |
116167 |
116167 |
|
Kogi |
2471 |
3231 |
189150 |
0 |
192381 |
194852 |
2865 |
10348 |
88794 |
0 |
99142 |
102008 |
|
Kano |
5668 |
4759 |
13890 |
0 |
18649 |
24316 |
4808 |
7868 |
21092 |
0 |
28960 |
33768 |
|
Kwara |
836 |
1902 |
286609 |
0 |
288511 |
289347 |
1179 |
22082 |
292296 |
0 |
314379 |
315558 |
|
Lagos |
10135 |
1900 |
96566 |
554 |
99020 |
109155 |
10888 |
2653 |
5622 |
554 |
8829 |
19716 |
|
Niger |
308 |
308 |
295847 |
0 |
296155 |
296462 |
399 |
843 |
171805 |
0 |
172647 |
173046 |
|
Ondo/Ekiti |
3664878 |
242143 |
1042898 |
166854 |
1451894 |
5116772 |
3542028 |
16867 |
765375 |
166854 |
949096 |
4491124 |
|
Ogun |
418640 |
49671 |
1738570 |
13376 |
1801617 |
2220257 |
270695 |
2307 |
1393314 |
13376 |
1408997 |
1679692 |
|
Osun |
114705 |
23937 |
294141 |
5124 |
323201 |
437907 |
109490 |
3818 |
187984 |
5124 |
196926 |
306415 |
|
Oyo |
304436 |
26671 |
391671 |
13080 |
431422 |
735858 |
312314 |
34846 |
137771 |
13080 |
185698 |
498012 |
|
Plateau/Nasarawa |
1966 |
4950 |
48319 |
12274 |
65543 |
67509 |
2343 |
11792 |
42355 |
31367 |
85514 |
87857 |
|
Rivers/Bayelsa |
611562 |
2912 |
17478 |
40766 |
61156 |
672718 |
611562 |
2912 |
17478 |
40766 |
61156 |
672718 |
|
Taraba |
757 |
615 |
39125 |
0 |
39740 |
40497 |
0 |
1013 |
31301 |
0 |
32313 |
32313 |
|
Total |
11334984 |
441589 |
7525128 |
552575 |
8519287 |
19854271 |
11064828 |
171476 |
6208495 |
571668 |
6951639 |
18016464 |
Source: Beak Consultants 1998. Forest Resources Study. Main Report Vol. II page 9-31.
