Changes

==Planning considerations==

==Planning considerations==

A commonly held view is that a tree's root system will be similar to it's visible crown. For many trees, this is not the case, as roots will more often spread much more widely, but to a shallower depth <ref>Crow, P. (2005). The Influence of Soils and Species on Tree Root Depth. Edinburgh. Retrieved from https://www.forestry.gov.uk/pdf/FCIN078.pdf/$FILE/FCIN078.pdf</ref>. For more detailed information on planning (site) considerations see [[Bioretention]].

A commonly held view is that a tree's root system will be similar to it's visible crown. For many trees, this is not the case, as roots will more often spread much more widely, but to a shallower depth <ref>Crow, P. (2005). The Influence of Soils and Species on Tree Root Depth. Edinburgh. Retrieved from https://www.forestry.gov.uk/pdf/FCIN078.pdf/$FILE/FCIN078.pdf</ref>.  

===Site Topography===

===Site Topography===

===[[Karst]]===

===[[Karst]]===

Tree trenches designed to drain primarily by infiltration are unsuitable in areas of known or implied karst topography.

Tree trenches designed to drain primarily by infiltration are unsuitable in areas of known or implied karst topography.

==Design==

==Design==