Effect of coppicing height on the regeneration and productivity of certain firewood shrubs in alkaline soils of North Indian plains

• Autores: R. S. Katiyar, Dheer Singh, S. K. Tewari, P. N. Misra
• Localización: Biomass and bioenergy, ISSN 0961-9534, Vol. 9, Nº 6, 1995, pág. 459
• Idioma: inglés
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• Resumen

  • Four shrubs, viz. Hibiscus tiliaceus, Leucaena leucocephala, Vitex negundo and Sesbania sesban, were evaluated for their performance as firewood crops in coppiced stands of varying cutting heights (15, 30 and 45 cm) in repeated annual harvests (4) on alkaline soils of the North Indian plains. The dry wood yield of Leucaena and Sesbania ranged between 22.9–42.6 and 9.9–18.0 tonnes ha−1 year−1, respectively. Leucaena showed progressive increases in yield from coppiced stumps up to the 4th harvest while Sesbania showed a reduction after the third harvest mainly due to the high degeneration (60%) of coppiced stumps. Degeneration was low (<10%) in Leucaena and Vitex. The coppicing heights generally did not show any significant effect on the growth and productivity. The number of coppice shoots per stump increased with stump height and production of coppice shoots was maximum in Vitex and minimum in Leucaena. The average diameter of coppice shoots tended to decrease with increasing coppicing height of the stumps.