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Title: Reclamation of overburden and lowland in coal mining area with fly ash and selected plantation: A sustainable ecological approach
Authors: Sinha, A K
Srivastava, N K
Ram, L C
Issue Date: Jun-2014
Publisher: NISCAIR-CSIR, India
Abstract: The extraction of coal through opencast mines and power generation from coal combustion in thermal power plants poses the concerns of environment due to huge production of overburden and fly ash, respectively. Considering fly ash as a soil ameliorant and other amendments as fertility supplement, reclamation of mine overburden and low land in Jharia coalfield was carried out through plantation of efficient photosynthetic and soil-binder species. The characteristics of minespoil and low land significantly improved photosynthetic rate and soil conserving efficiency of the planted species enhanced, and concentration of SPM, RSPM, CO2, SOx and NOx reduced sifnificantly over the control. Among the tree species, Acacia auriculaeformis, Albizzia lebbek, Dalbergia sisoo and Cymbopogon flexuosus and Vetiveria zizanioides among the herbaceous plants showed most promising performance in respect of improving the physico-chemical characteristics of mine spoil, photosynthetic activity and leaf area along with significantly conserving the soil erosion and water runoff. Thus, the overburden and lowland in a coal mining area can be successfully reclaimed with improved aesthetic view and environment, via selective plantation using fly ash and other amendments.
Page(s): 11-20
ISSN: 0975-2412 (Online); 0771-7706 (Print)
Appears in Collections:BVAAP Vol.22(1) [June 2014]

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