0 m 200 
  
  
  
  
Figure 2. Interpretation of bitemporal data of aerial photography - large-scale GIS-map of landcover change 1952-1987 Ei 
(for description of classes of landcover change see figure 3) (Csaplovics 1997). 
  
Degradation 
  
pr) high 
increase 
  
  
{= ero fone medium 
increase 
>> nr 
  
  
low 
increase 
  
  
no 
change 
  
  
low 
decrease 
  
  
  
  
wv 
+... medium 
++... 
22 decrease 
  
  
  
0 km 10 
— 
  
  
  
  
Figure 3. Integrated classification of aerial photography and of satellite imagery - medium-scale GIS-map of landcover 
change 1952-1990 (Csaplovics 1997). 
106 International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998