Productive 
Region Total 
Area 
nvironmental 
Region 
tion Lx i^ 
Use Classification 
  
  
  
ished considering 
potential and site 
‘he site index is an 
>stimating forest 
erosion is a good 
to development of 
jues. The matrix 
demonstrates this 
d Classification 
:X (14 years) 
«19m 
PR 03 
(Silvicultural 
research) 
PR 04 
(High wood 
cost) 
.E.R. 
oss Equation was 
,aused by upland 
related to rainfall, 
X slope, land use 
ervation practices. 
ciated with soil 
classification, given the Company experience 
in pine plantation. 
It is also the purpose of the model to set 
isocost areas within the P.R., based on forest 
management techniques, logging and 
transportation systems. However, this step was 
not carry out in this study. 
4. RESULTS AND CONCLUSION 
The Figures 03 to 05 show the outputs 
related to environmental/productive regions, 
soil erosion and a map of forest productivity. 
In Figure 03, is shown the results 
concerning the broad land use classification, as 
set up by the model. It is important to 
remember that TER. is going to be 
established based on soil erosion potential. For 
this reason, it is not presented in this map, only 
the L'ER.,NPR andPR 
  
Figure 03. Environmental and Productive 
Region 
Figure 04, on the other hand, shows the 
results about soil erosion potential. Three 
classes were established, but just two were 
applied to define forest productive lands. The 
high class of soil erosion was considered as the 
TER 
41 
     
  
    
TER [Js > 800 t/halyear 
In. 600/800 t/ha/year 
  
.E. < 600 t/halyear 
* S.E. - Soil Erosion 
Figure 04. Soil Erosion Potential Map 
Site index for pine reforestation were 
defined based on just two classes (Figure 05), 
due to the available information from the 
Company experience (site index using a 
reference age of 14 years). 
    
Class | - » 19m 
lllciass ll -« 19m 
  
  
Figure 05. Site Index for Pine Reforestation