Woody plant biodiversity on a revegetated abandoned coal wash sediment pond

Woody plant biodiversity under five different treatments was determined on an abandoned coal wash sediment pond three and six years following reclamation. Species richness and equitability improved significantly between sampling periods for all treatments. No significant differences occurred or were identified in any biodiversity index among treatments when comparisons were made at a single sample date. However, there were significant differences in species eguitability when treatments were compared over time.