| Popis: |
The objective of this study was to evaluate erosion control measures on sediment yields on reclaimed steep slopes and compare measured sediment yields to values predicted by Revised Universal Soil Loss Equation (RUSLE) Version 1.06. Plots were constructed on a 25 % uniform slope waste rock area. Five treatments were replicated three times in a completely randomized design. Treatments applied were no coversoil, 30 cm coversoil, 30 cm coversoil/pitting of the soil surface, 30 cm coversoil/tree slash barriers, and 30 cm of coversoil/vesicular-arbuscular mycorrhizal (AM) fungi inoculum. Pitting was potentially an effective erosion control practice. AM inoculation did not enhance aboveground plant growth. Plant growth was lower on the no coversoil treatment. RUSLE's ability to predict sediment yields were improved by applying rill formation factor constants. The sediment-delivery ratio was 0.14 for the Coversoil/Pitting treatment and 0.60 for the Coversoil/Slash Barriers. |
