Accumulation, transfers and dissipation of energy in chir pine forests

Chaturvedi, O. P. ; Singh, J. S. (1991) Accumulation, transfers and dissipation of energy in chir pine forests Biomass and Bioenergy, 1 (6). pp. 363-367. ISSN 0961-9534

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Energy stored and net energy fixed at four sites of natural chir pine forest were assessed. Of the total energy stored by the vegetation (3836.6 GJ ha−1) 98.7% was in trees, 0.4% in shrubs and 0.9% in the herb layer. Net energy fixed by the vegetation was 318.5 GJ ha−1 yr−1 of which the shares of tree, shrub and herb layers were 84.7% 0.9% and 14.4%, respectively. The energy capture efficiency (photosynthetic radiation) of the vegetation was 1.07% (0.91% in trees, 0.01% in shrubs and 0.15% in herbs). Of the total transfer of energy to the forest floor through litter fall (142.7 GJ ha−1 yr−1 leaf litter and woody litter accounted for 68.4% and 31.6%, respectively. Energy stored in the above-ground biomass of the trees from 2877 ha or in the net annual above-ground production from 39,903 ha is sufficient to operate a 50 MW generating station for one year. Total biomass and net production from 1 ha of natural chir pine forest is sufficient to meet the energy need of an average household of western Himalaya for 61.1 and 4.4 years, respectively.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Western Himalaya; Pinus roxburghii Forest; Energy Flow; Photosynthetic Efficiency; Litter; Biofuel
ID Code:72974
Deposited On:03 Dec 2011 04:37
Last Modified:03 Dec 2011 04:37

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