So we have 30-50 years of healthy, alive soil left on this planet. Green infrastructure (GI) has really only just begun in recognizing the importance of soil, which has key roles in supporting plant growth, infiltration, and biological activities that contribute to air and water quality. However, urban soils are often physically, chemically, or biologically unsuitable for use in GI features. Constructed Technosols (CTs), consisting of mixtures of organic and mineral waste, are man-made soils designed to meet specific requirements and have great potential for use in GI. Here’s some well-made research on the subject from France. I am nerdily excited in this movement towards supporting the basis of all life, the unsung heroes of the soil food web. Also check out suspended pavement technology if you fancy more soil/plant friendly urban design.
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