NEW SUBSTRATES FOR LIVING WALLS
The need for new recycled and low energy products for a greater environmental sustainability is also an issue in landscape planning, and the prerogative of some of the latest technologies in design. One of these technologies is represented by the living walls, and a study is being carried out to trial alternative substrates made of industrial residues. To carry out the trials the Reviwall® (Reviplant, Italy) patented vertical green system was chosen. Since the main aim of the trial was to evaluate the possibility of using alternative and eco-compatible substrates, shredded felt, the industrial residue of the production of chair felt pads, were chosen for substituting the coconut fibre. To verify the suitability of this new material and to identify the better combination of plant and substrate, three different species (Lonicera nitida, Bergenia cordifolia and Luzula sylvatica) were tried on four different substrates composed by different percentages of felts. Six blocks of 216 panels of living walls for a total area of 43 m2 were tested, and 18 plants (3 panels) for each thesis (plant-substrate combination) were randomly organized within each block. Monthly surveys were performed to monitor the growth of the plants and the quality of the green cover, by considering growth and ornamental parameters. The first results allow to assert that felt pads are a valid substitute for coconut fibre for growing plants on living walls, especially with Bergenia and Lonicera, while Luzula gave negative results.
Larcher, F., Fornaris, A. and Devecchi, M. (2013). NEW SUBSTRATES FOR LIVING WALLS. Acta Hortic. 999, 277-281
sustainability, alternative materials, recycling