Abstract
Forest fire plays an important role in the landscape structure, composition, function and ecological integrity. The objectives of the present study are to prepare the forest burnt area map and to analyse fire prone areas in Nagarjunasagar-Srisailam Tiger Reserve (NSTR), Andhra Pradesh, India using multi-temporal satellite data. Unsupervised classification and visual image interpretation techniques were used to achieve the objectives. The forest cover has been assessed as 2653.9 km2. The total area affected under forest fire has been estimated as 6858.4 ha in 1973, 35,739.7 ha in 2001 and 38,680.1 ha in 2005, 79,067.3 ha in 2009 and 38,462.1 ha in 2010. The total forest burnt area was low during 1973 (1.9 %) and high during 2009 (21.9 %). The results of fire recurrent analysis shows that an average of 1336.3 ha area was undergoing regular annual forest fires. Burnt area monitoring from satellite data provides useful information to forest managers in effective planning and conservation of forest resources.
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