Assessing the Waste Fiber Improved Soilless Culture Medium on Green Roofs

摘要

The formation of culture medium plays a crucial role in whether roofs greening could be succeeded or otherwise, particularly for completed buildings. In this study, waste fiber tencel ~R. low-melting point fiber (pet) and waste fiber (pet) are chosen to be laminated into a medium with 15 cm in its thickness due to reducing the load on the roof and culture soil; meanwhile, two kinds of herbaceous plants, ruellia brittoniana leonard and alternanthera versicolor, are planted in order to regulate the improved adequacy of culture medium. The result of this empirical experiment indicates the life of herbaceous plants can be maintained in the improved culture medium, and the selective materials, manufacturing parameter along with layers of culture soil that undergo a series of tests, such as water permeability, moisture content and water retention. The evidence spontaneously bears out the fact that the waste fabric improved culture medium shares the identical eco-greening functionality as the traditional cultivated soil does; by doing so, not only the eco-appeal for utilization of waste and lightening the culture medium on the roof can be achieved, a benefic contribution could consequently be made to the improvement of urban greening.