Effects of nonwoven fabrics on growth of groundcovers planted with matted seedlings

Abstract

Three nonwoven fabrics were compared as bases of matted seedlings on slopes to elucidate their effects on groundcover growth. Groundcovers were transplanted with four species mixed (Lippia canescens, Verbena tenera, Thymus serpyllum, and Sedum sarmentosum). At the nursery stage and after planting on a slope, the groundcover growth was inferior with poly (lactic acid) fiber nonwoven compared to that of nonwoven polyethylene. Afterward until the third year, the total coverage of groundcover plants was maintained over 90% in all treatments. The rate of groundcover composition changed from the first year to the third year. Coverage of S. sarmentosum was high (18–30%) immediately after planting, but it decreased in the second and third years. In contrast, coverage of L. canescens and T. serpyllum increased rapidly, reaching 90–100% during the third year. A significant difference was found in the root penetration of different fabrics.