The effects of plant density of Melastoma malabathricum on the erosion rate of slope soil at different slope orientations

摘要: Abstract Malaysia׳s cut slopes, especially for road lines accommodation, are prone to erosions and landslides. These problems mainly occur due lack of vegetation cover strong erosive forces. In addition, the topography factors have also become a major factor affecting soil degradation. Thus, this study is aimed at determining effects planting density selected species, namely Melastoma malabathricum; one, two, three seedlings per box, on erosion rate slopes different orientation (morning evening sun) Guthrie Corridor Expressway, Selangor. six months observation, treatment with seedlings/box morning sun slope showed lower by 69.2% than those same slope. recorded month (final observation) had highest reduction saturation level (STL), 23.6%. Furthermore, physiological values species studied, grown slope, were higher in terms stomatal conductance photosynthetic 12.1% and15.8% (three seedlings/box), respectively. The overall results that plant was inversely related STL conclusion, gave positive plant׳s performance reducing STL, as well alleviating soils.