Impact of plantation on ecosystem development in disturbed coal mine overburden spoils
2004
Banerjee, S. K. | Mishra, T. K. | Singh, A. K. | Jain, A.
Eleven nitrogen fixing and one non-nitrogen fixing tree species were planted in coal mine overburden spoils of Bisrampur colliery at Surguja district, Chattisgarh, India in 1993. Their growthperformance at one, two, four, six and eight years was recorded. It was observed thatafter eight years of planting, Acacia mangium performed very well in respect to all the growth parameters followed by A. holoserecia, Dalbergia sissoo, Albizia procera, Pithecellobium dulce, Acacia auriculiformis and Gmelina arborea. Acacia nilotica showed very poorperformance. The number of natural colonisers increased with increasing age of the planted species. Nutrient status of the spoils also increased gradually with the increasein age of the plants. Organic carbon increased gready and, as a result, activities of bacteria, actinomycetes and fungi accelerated. This study indicated that the spoilenvironment, which is extremely harsh just after mining, could be improved gradually and the ecosystem restored by planting suitable species. Therefore, for early development of the ecosystem, afforestation with suitable leguminous species is recommended.
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