Installation element | Comments |
Establish the test modules | Following infrastructure installation: 1) Subdivide the roofs into test modules (see Figure 6); 2) Select suitable species from the ESBS community for planting; |
Select substrates | 1) Select both natural and artificial substrates, e.g. one directly from an ESBS site, an artificial aggregate version of the natural substrate and an industry manufactured substrate, each at 3 different depths e.g. 50 mm, 100 mm and 150 mm; 2) Discard rich leaf litter; 3) Note comment in 5.1 regarding avoidance of materials which may contain hazardous or toxic substances. |
Test soils for lead content | Many inner suburban Sydney soils still contain lead particles from the era of lead in petrol. This may be a factor in selecting substrate options for the test beds (https://www.smh.com.au/national/nsw/lead-levels-in-sydney-soil-dangerously-high-20170119-gtuea6.html). |
Test landscape materials for toxins | Landscape materials should be checked for toxins, eg test cell edging, whether timber or plastic. Non-natural substrate materials should similarly be checked since not all substrate will be obtained from in-situ ESBS remnants (https://www.betterhealth.vic.gov.au/health/HealthyLiving/copper-chrome-arsenic-cca-treated-timber). |