Ecology, Environment and Conservation Paper

Supplement Issue, Dec. 2014; Page No.(283-286)

VARIATION IN PHYSICAL CHARACTERISTICS OF WOOD IN HIGH DENSITY PLANTATION OF EUCALYPTUS TERETICORNIS SMITH

Shabir Ahmad Rather, Kulwant Rai Sharma and Sabeena Nabi

Abstract

Studies were conducted to evaluate the effect of sampling height and spacing on selected wood characteristics in high density plantation of 25 year old Eucalyptus tereticornis. The wood characteristics of trees growing at0.60 × 0.60 m, 0.90 × 0.90 m and 1.20 × 1.20 m spacing were studied by taking sample discs at four different tree heights viz. ground level, 30%, 60% and 90% of total tree height. The results revealed significant difference in wood per cent, bark percent, moisture content and specific gravity. The maximum wood of 86.13 (9.281) per cent was observed at 60% of total tree height and minimum 77.08 (8.789) per cent at ground level. Bark per cent showed a reverse trend. The moisture content decreased from base to the top of tree while specific gravity showed an opposite trend. Among spacing, the highest wood of 85.33 (9.238) per cent was recorded for 1.20 × 1.20 m and lowest of 82.53 (9.084) per cent for 90 × 90 m which was at par with 60 × 60 m. Bark per cent decreased with increase in spacing. Specific gravity increased with increase in spacing from 0.727 to 0.783, while as, moisture content varied inversely with increase in spacing.

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