Light-Weight Perlite Medium Cultivation of Plants used in Extensive Green Roof Feasibility Studies

摘要

We tested 8 plants and 3 medium and tested perlite base, thus achieving the results. The green coverage for media S6 (perlite to sandy loam is 8:2) is suitable for Alpinia speciosa the best growth 1040.5cm~2, followed is Duranta repens the growth 675cm~2, with Portulaca grandiflora as the third growth 365.12cm~2. The green coverage for media S7 (perlite to sandy loam is 5:5) is suitable for Alpinia speciosa the best growth 843. 93cm~2, followed is Duranta repens the growth 587.38cm~2, with Zoysia matrella as the third growth 435. 81cm~2. The green coverage for media S8 (perlite to sandy loam is 2:8) is suitable for Alpinia speciosa the best growth 501.03cm~2, followed is Duranta repens the growth 324.39cm~2, with Zoysia matrella as the third growth 298.55cm~2. Perlite to sandy loam medium is more suitable for Duranta repens, Alpinia speciosa, and Zoysia matrella with growth. S6 medium the best green coverage growth (biomass) 3185.49 cm~2. Eight kinds of plants Alpinia speciosa the best green coverage growth (biomass)2385.46 cm~2. Different media prescriptions are well-grown planting combinations, in which one can choose different plant species based on the environment and in order to create biodiversity. This can be achieved to reduce the building load and may provide a good environment for the growth of plants and create space in favor of green roofs.