Table 3: MEAN VOLUME (m.m/ha.) IN VARIOUS STRATA 
  
  
  
  
Strata S ua r.v.ey. Area 
East 
Godavari Bastar Chanda Timli Karim Nagar 
(P.T.s.) (P.T.S.) (P.I.Ss.) I.p.T. 
1 98.6 83.3 79.3 249.0 80.0 
2 70.9 58.0 59.4 127.0 61.0 
3 48.3 45.6 40.3 67.0 19.0 
  
  
Source: Inventory reports of P.I.S./I.P.I., Tivari (1973), 
Parthasarthi (1975) 
Table 4: USE OF AERIAL PHOTOGRAPHS FOR SPECIES TYPE STRATIFICATION 
  
Species Type 
Estimation of area (100 ha.) 
  
Ground Survey 
Photo-Interpretation 
Difference $ 
  
  
  
  
  
  
  
  
  
  
Fir/spruce 1352 1336 1..2 
Blue pine/ 1016 1025 0.9 
Deodar 
Estimated area % 
Ground Photo 
Sal 2.4 0.7 
Others 97.6 99.3 
  
  
Source: Inventory reports of P.I.S.