Observations on the "bare soil" method of grassed waterway establishment

Abstract

Evidence is given that waterways on red volcanic loams possessing a subsoil resistant to erosion when undisturbed may be used to carry run-off water without prior grassing.
Where suitable plants are available, the floor of the waterway is stabilized within a few years by spread of stolons or rhizomes from plantings on the banks. Some erosion of the waterway floor may occur in the interim, but if stabilization is ensured this is of little consequence.