Frontier Tanzania Environmental Research REPORT 110 ...

Kazimzumbwi Forest Reserve
37
800
Total number of poles per hectare
700
600
500
400
300
200
100
0
A B C D E
Transect
Live Poles Old Cut Poles New Cut Poles
Figure 8 Total number of live, old cut and new cut poles per hectare for each transect line.
5.4.3`TIMBER
Rates of timber extraction are summarised in Tables 8 and 9 and Figures 9 and 10. An average
total of 192 (83% of all) timber sampled per hectare were live, 27 (11%) naturally fallen, 14 (6%)
old cut and 0.5 (0.2%) new cut. As for poles, the number of naturally fallen timber was on
average greater than cut timber. The number of new cut timber was minimal.
As for poles, transect lines D and E showed greatest evidence from timber cutting with 24 and 89
cut timber per hectare (11.2% and 39% of all timber sampled along respective transect lines).
Transect C supported the greatest density of new cut timber, whilst transect D supported the
greatest density of old cut timber. The mean density of cut timber per hectare was greater than
that of naturally fallen timber along transect D.
Table 8 Disturbance transect results for timber counts (mean percentage in brackets).
Transect
Line
Transect
Length (m)
(no. of 50m
sections)
Transect
Length (m)
Total no.
timber sampled
Live timber
(LT)
Naturally
dead timber
(NDT)
Old Cut
Timber (OCT)
New cut
timber (NCT)
A 4600 (92) 4600 903 734 (81) 118 (13) 50 (5) 1 (0.1)
B 6650 (133) 6650 1728 1501 (87) 172 (10) 52 (3) 3 (0.2)
C 5850 (117) 5850 1394 1203 (86) 157 (11) 30 (2) 4 (0.3)
D 4150 (83) 4150 914 691 (76) 123 (13) 98 (11) 2 (0.2)
E 750 (15) 750 174 92 (53) 15 (9) 67 (39) 0 (0)
TOTAL 22,000 (440) 22000 5113 4221 585 297 10
Frontier-TanzaniaCoastal Forest Research Programme