Table 1. Extent of forest cover and annual rate of change (r) in NakaiNam Theun National Protected Area from topographic maps covering the full area of analysis, both corrected and uncorrected for scale differences, and the mean of the two results.



1960s maps 
1981 maps 
r x 100 1960s–1981 
ha 
% 
ha 
% 

Not corrected for scale 
300 092 
97.3 
286 310 
92.8 
0.362 
Corrected to the 1981 map scale 
284 061 
92.1 
" 
" 
0.061 
Mean 
292 077 
94.7 
" 
" 
0.151 


