Relative performance of native and exotic grass species in response to amendment of drastically disturbed serpentine substrates

摘要

1. Limited information exists on approaches to effectively revegetate severely disturbed, barren, subgrade (unconsolidated parent material) serpentine substrates. Additionally, little is known about the invasion potential of exotic grasses from highly invaded non-serpentine environments into adjacent, relatively uninvaded serpentine environments following restoration efforts that use substrate nutrient enrichment to accelerate revegetation. This study investigated approaches to the revegetation of subgrade serpentine substrates with native, serpentine-tolerant grass species while limiting the establishment and reproduction of invasive annual grass species.