Physico-chemical properties and soil quality of waste paper-growing media on slope surface

Abstract

In this study, the potential of applying slope surface vegetation material is investigated by manufacturing the physico-chemical properties and growth properties over time after application of waste paper-derived growth media on the slop surface, and by evaluating the soil quality index. The growing media were prepared using different substrate, such as sawdust and waste paper, to grow Lespedeza bicolor on the slope surface (40°). Seed germination of Lespedeza bicolor was found to be 17.5%, 5.8%, 13.8%, 20.8% and 31.5% for the soil (control), sawdust-growing media (100%), waste paper-growing media (100%), soil + sawdust-growing media mixture (50%+50%) and soil + waste paper-growing media mixture (50%+50%), respectively. Seed germination and stem length in the soil + waste paper-growing media mixture (50%+50%) was higher than those in soil (control), sawdust-growing media (100%), waste paper-growing media (100%), or soil + sawdust-growing media (50%+50%). However, the soil quality index was the highest at 97.4 in waste paper-growing media (100%). This suggests that further study on the soil quality index calculation model on the surface of slope is needed. ? 2018 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.