There are certain cartographic and technological limitations in the assessment of forest cover.

 
 
  • Since the resolution of sensor LISS-III is 23.5 m the plantations along road, canal and railway line of a width less than the resolution are not recorded.

 
  • Considerable details on ground may be obscured in areas having clouds and shadows. It is difficult to interpret such areas without the help of collateral data.

 
  • The reflectance of young plantations with small crown and low chlorophyll content is not recorded by satellite sensors.

 
  • Gregarious occurrence of bushy vegetations and agricultural crops like lantana, tea and coffee poses problems in delineation of forests as their reflectance is similar to that of the forest.

 
  • Recorded forest areas cannot be delineated if their boundaries are unavailable.

 
  • Species composition is not identifiable with the images (of above mentioned resolution) used.

 
 
 
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