Abstract
ABSTRACT Biomass accumulation and stored energy content of Bambusa bambos (L.) Voss were assessed for different age classes at Pusa on the northwest alluvial plain of Bihar. The energy fixed by bamboo was: • 3.28 TJ ha−1 in a 3-year-old plantation, • 3.97 TJ ha−1 in a 4-year-old plantation, and • 4.96 TJ ha−1 in a 5-year-old plantation. The energy capture efficiencies (photosynthetic radiation) for the above ground and culms for the same three age classes were: • 4.01% & 3.64%, • 3.61% & 3.31% • 3.23% & 3.30%. The contributions in the form of bioenergy for the same three age classes from:- • culms was 63.8%, 64.33% & 64.64%, • branches 21.9, 21.71 & 21.54, • foliage 4.8, 4.5 & 4.3, • rhizomes 8.6, 8.75 & 8.75 and • roots 0.67, 0.68 & 0.66. Using a 3 year felling cycle and culm selection silvicultural system, approximately 6,000 hectare would be required; or on a 4 year cycle 5,000 hectares, or on a 5 year cycle over 4,000 hectares to provide fuel to operate a 50 MW generating station. Gregarious clump flowering followed by the death of the clumps is to be expected after 40–45 years.
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