Figure Ta - Part of a colour IR photograph (Sierra Leone) printed in 
black-and-white at the contact scale of 1:70,000 Information 
on the 'finer' structure of the forest stands is observable 
f e on CIR photographs at this scale (see text). Tree species of 
the upper forest canopy include Afzelia africana, Alibizia zygia, 
Uapaca guineensis, Daniellia thurifera, Terminalia superba, 
Parkia bicolor and Entandrophragma utile. 
Sample area scale 1: 30000 ( approx.) 
3 TAT LT 
|Closea 
Y high 
forest 
  
  
  
Secondary forest 
2 Forest regrowth 
w 
  
Closed high forest 
KK A 
NN A a 
4 Upland grassland 
S Raphia swamp forest 
cale of 
1 photography 
er analysis 
70,000, 
mputer 
6 Riparian forest 
  
7 Upland crops 
  
  
  
  
  
  
  
  
8 Rock outcrop 
ma Forest Reserve 
st 
Area) 
h dense Loves MN 
h open forest 
d Village 
X 
EE ETES On 
  
  
  
  
| 
IRC Photo no.3-335 (1976) 
Figure Tb - Part of the same area mapped at a scale of 1:50,000.