| ACS has been instructed to oversee the tree management at a
complex building development in South East London.
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| The work involves undertaking a complete
BS-compliant tree survey and comparing this data with that
originally provided with the planning application. The original tree
works specification, which included
re-location of several mature trees, has also been reviewed.
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| ACS has been able to confirm, with amendments, the validity of the tree
survey and associated tree works and protection recommendations. The
following case study deals briefly with one aspect of the recommended
tree management works at this site and relates to the re-location of a
mature Holly within the site to make way for a new roadway. Several other
trees were re-located as part of a package of landscape works.
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This mature Holly was protected during the surrounding build by robust tree
protection fencing. It is due to be re-located with the use of a hydraulic
tree-spade. The tree was regularly irrigated as part of the re-location preparation work.
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| The site into which the tree is to be re-planted has also been well-irrigated prior to
its excavation. The smooth sides of the planting pit are stratified to improve
root penetration, aeration and irrigation in the moderately clayey soil.
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| ACS prepared a specification brief for tree moving companies upon which tenders were
sought, collated and submitted for approval. The appointed contractor was appointed
several months prior to the moving exercise in order to provide time for site preparation.
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The tree was lightly pruned to enable the heavy, hydraulic tree spade to encircle the
tree’s base without inflicting lasting damage. The weather was dry and hot and to reduce
high transpiration rate irrigation continued during the tree moving process.
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Once tree was safely placed into the planting pit, the tree was secured with guys and irrigated further.
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The tree in its new location has developed into one of the development’s key landscape features.
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