Diversity of wood specific gravity among Forest Trees, Kolli hills, Southern Tamilnadu, India release_mfnq6sem6rgtpf63gbq7tlxbd4

by Saravanan Jothivel

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The specific gravity of wood was determined for a total of 71 tree species from different parts of the hills (78°20' to 78°30'E Long and 11°10' to 11°30' N Lat). Among the trees the specific gravity of the maximum number of species (28) is found between 0.60 to 0.69, followed by 0.5 to 0.59 (16), 0.7 to 0.79 (14), 0.8 to 0.89 (8), 0.4 to 0.49, ≥ 9 (1), 0.3 to 0.39 (1) and 0.2 to 0.29 (1). The average wood specific gravity was 0.653 (ranging from 0.28 to 0.94). Among the species, Drypetes melanoxylon (0.94 ± 0.04) had the highest specific gravity and Moringa oleifera (0.28 ± 0.03) had lowest. In addition, the highest mean specific gravity found in the family of Loganiaceae. The result says the specific gravity is highly deviated, it may conclude that the study area had variation in soil composition, mean annual precipitation, seasonality and temperature.
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