Sustainable restoration of brownfield sites

Summary

Brownfield sites are often host to hostile conditions which have to be overcome to successfully and sustainably establish greenspace. Soils are often characterised by compaction and poor structure, low organic matter and poor fertility associated with their previous use or method of reinstatement. They may exhibit poor winter drainage or, at the other extreme, severe summer droughtiness. Some sites may completely lack soil resources and require the use of soil-forming materials to simulate soil conditions. Other sites may pose restrictions to tree growth through the presence of landfill caps, contaminants or other pollution control measures. The key to creating effective and sustainable greenspace is to plan for and create the correct site conditions, prior to first planting, which will enable trees and other vegetation to reach maturity.