Root systems of native shrubs and trees in Hong Kong and their effects on enhancing slope stability

摘要

Objectives: Mechanical reinforcement by plant roots is believed to have an important role in stabilizing highly saturated slopes against shallow failure. In this study, the root system of four Hong Kong native shrubs (Rhodomyrtus tomentosa and Melastoma sanguineum) and trees (Schefflera heptaphylla and Reevesia thyrsoidea) with height that ranged between 1 and 1.5 m was sampled and their characteristics were studied.