Difference between revisions of "Absorbent landscapes"
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− | + | STEP currently have a guide to amending and improving topsoil to improve the water retention capacity and promote healthy vegetation. I can be found [https://sustainabletechnologies.ca/home/healthy-soils/construction-specifications-for-implementing-compost-amended-planting-soil-in-ontario/ here] on our main website. | |
''Soil amendment guidelines (from 2010 guide section 3 - placed here by Jen) | ''Soil amendment guidelines (from 2010 guide section 3 - placed here by Jen) |
Revision as of 19:15, 5 March 2018
STEP currently have a guide to amending and improving topsoil to improve the water retention capacity and promote healthy vegetation. I can be found here on our main website.
Soil amendment guidelines (from 2010 guide section 3 - placed here by Jen)
Soil amendment sizing criteria: impervious area / soil area = 1
- use 100 mm compost, till to 300 - 450 mm depth
impervious area / soil area = 2
- use 200 mm compost, till to 300 - 450 mm depth
impervious area / soil area = 3
- use 300 mm compost, till to 450 - 600 mm depth
Compost should consist of well-aged (at least one year) leaf compost. Amended soil should have an organic content of 8-15% by weight or 30-40% by volume. Source: Soils for Salmon, 2005
Info from Preserving and Restoring Healthy Soil: Best Practices for Urban Construction v 2.0 (placed by Jen)
- Subsoil scarification (i.e., decompaction treatment) depth changes from minimum of 10 cm to 45 cm;
- Topsoil/Planting Soil depth for tree pits changed from minimum of 60 cm to 20 cm;
- Total uncompacted soil depth changed from 30 cm to 65 cm for turf/lawn and planting beds, and from 90 to 65 cm for tree pits;
Reference: Preserving and Restoring Healthy Soil: Best Practices for Urban Construction (TRCA 2012).
Tool and other info[edit]