Landscape & Urban Design Issue 41 2020 | Page 82

ARBORICULTURAL 5 ARBORICULTURAL CONSIDERATIONS YOU SHOULD MAKE BEFORE STARTING YOUR LANDSCAPE DESIGN PROJECT Swelling and shrinking of clay subsoil Before undertaking any groundwork on a landscape design project, it’s crucial to consider the trees on the site and how they will impact the design and construction going forward. Tree decay Conducting tree surveys and creating tree constraints plans are amongst the first tasks you should carry out to ensure your project runs smoothly. However, before this stage, there are several arboricultural considerations you should make. Decaying trees can pose a risk to nearby buildings and wildlife if they fall, so it’s crucial to consider this before starting your landscape design project. Tree preservation orders If there are trees on the designated construction site, you will need to make sure that they are not protected by a tree preservation order. Tree preservations orders legally prohibit the cutting down, uprooting and overall damage to protected trees. Doing so can result in fines of up to £20,000. 82 www.landud.co.uk Tree decay is not always visible to the naked eye, so you might need professional assistance to assess the structural condition of the trees on your plot. Tree roots & root protection areas If you’re planning on keeping existing trees on your plot, you should outline a root protection area to ensure the survival of the retained trees. When creating your landscape design, root protection areas should be clearly outlined around the trees that are to be retained. This means that the roots will not be disturbed by any groundwork going forward. Trees can indirectly and directly cause damage to local structures. Clay soils are made up of a large proportion of water, and if there are trees nearby they can absorb this moisture and affect the stability and levelling of the ground. This can cause issues if there are already trees on the site, and if you’re looking to plant trees in the future. Wildlife & natural beauty Not only do trees provide oxygen and shelter for local wildlife, but they’re also a source of natural beauty and help to improve the quality of life in surrounding areas. If your local council also recognises these benefits, it’s likely that the trees on your site will be protected by a tree preservation order. However, this is still something that you should consider before starting construction as the trees could help your project rather than hindering it. www.treesurveyexpert.co.uk Follow us @ludmagazine