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The Center for Native Grasslands Management

Title: Long-term success of forage species planted for reclamation at Powell River Project
Year: 2002
Author(s): Lemus, R., Abaye, A. O., Evanylo, G. K., Zipper, C. E., hutton, S. J.
Source Title: Proceedings of the Third Eastern Native Grass Symposium
Source Type: Proceedings
pages: 263-266
Original Publication:  
Abstract: The restoration of mined-land begins by recognizing plant species that can respond to management under poor soil conditions. The objective of this study was to asses the potential use of plant species for partially reclaiming mined-land. The study located at the Powell River Project Education Center in southwest Virginia. Sixteen treatments were established in summer of 1990 using 12 plant species in pure stand and mixtures in a split-plot arrangement with 4 replications. Prior to establishment, a mixture with a 2:1 mixture of composted wood chips to dry sewage sludge (112 Mg ha-1) was applied to provide N, P, and OM. Biomass samples were collected from 1996-2002 to determine botanical composition and biomass production. Samples were divided into: target species (the species originally planted), and non-target grasses, forbs and legumes. Switchgrass produced the most biomass across years compared to other grasses. Grasses showed a higher target biomass in 1996 compared to 1997 and 1998. Significant differences were observed in bioefficiency with switchgrass, tall fescue, and reed canary grass having the highest value. Data showed that species chosen for revegetation of these soils could provide opportunities for changing land use but the degree of success will depend on intended post-mine use of these oils and the plant species being utilized.
Publisher: The North Carolina Botanical Garden, Chapel Hill, NC, October 1-3, 2002. Omnipress, Madison, WI
Editor(s): J. Randall