ABSTRACT
Urban trees face a wide range of environmental challenges, the most significant of which is the scarcity of soil suitable for root growth (see Chapter 21). Often, soil compaction serves as the leading impediment for tree establishment. So even if there is soil present it is not available for root colonization and exploitation for growth support. While many of the problems urban trees face can be mitigated by planting species that are tolerant of a given challenge, there are relatively few tree species that can thrive within compacted soils which are prevalent throughout urban and suburban landscapes. Soil volumes are shared by grey and green infrastructure. Given a lack of space to expand and provide separate volumes for trees, there are integrating design solutions for tree soil volumes and pavement support.
