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Enmore Park Plan of Management - Land

Enmore Park Plan of Management - Land

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URBAN FORESTRY AUSTRALIA - TREE MANAGEMENT & CONSULTING ARBORICULTURISTSDiameter at Breast Height (DBH) refers to the tree trunk diameter at breast height(1.4 metres above ground level)Dieback Death <strong>of</strong> growth tips/shoots and partial limbs, generally from tip to base. Dieback is <strong>of</strong>ten an indicator <strong>of</strong> stress and tree healthEpicormic Shoots which arise from adventitious or latent buds. These shoots <strong>of</strong>ten havea weak point <strong>of</strong> attachment. They are <strong>of</strong>ten a response to stress in the tree.Epicormic growth/shoots are generally a survival mechanism, <strong>of</strong>ten indicating thepresence <strong>of</strong> a current, or past stress event such as fire, pruning, drought, etc.Footprint refers to the area occupied by structures including dwellings, driveways andpaths.Hanger Unattached, cut or broken branches that are caught in the canopy.Hazard refers to anything with the potential to harm health, life or property.Health refers to the tree’s vigour as exhibited by the crown density, leaf colour, presence<strong>of</strong> epicormic shoots, ability to withstand disease invasion, and the degree <strong>of</strong> dieback.Inclusion - stem/bark, the pattern <strong>of</strong> development at branch or stem junctions wherebark is turned inward rather than pushed out. This fault is located at the point where thestems/branches meet. This is normally a genetic fault and potentially a weak point <strong>of</strong>attachment as the bark obstructs healthy tissue from joining together to strengthen thejoint.<strong>Land</strong>scape Significance Rating.The importance <strong>of</strong> the tree as a result <strong>of</strong> its prominence in the landscape and its amenityvalue, from the point <strong>of</strong> public benefit.• Exceptional – Tree/s <strong>of</strong> crucial importance as a principal feature <strong>of</strong> a public place, orare so visually prominent as to be a landmark feature.• High – prominent tree/s in private gardens or well-frequented public places.• Moderate – Contributes some amenity to the immediate garden/landscape areas, orto the streetscape.• Low – Poor, declining or small examples; noxious or undesirable species; little or novisual amenity to public view.Resistograph® testing A Resistograph® is a specialised machine that measures timberdensity by drilling a 3mm diameter probe through the wood, simultaneously plotting theresults on a graph at full scale.SAFE USEFUL LIFE EXPECTANCY (SULE)In a planning context, the time a tree can expect to be usefully retained is the mostimportant long-term consideration. SULE i.e. a system designed to classify trees into anumber <strong>of</strong> categories so that information regarding tree retention can be conciselycommunicated in a non-technical manner.SULE categories are easily verifiable by experienced personnel without great disparity.Arboricultural Audit & Development Impact Assessment– Annette Kellerman Aquatic Centre, <strong>Enmore</strong> <strong>Park</strong>February, 2009. 25 <strong>of</strong> 42

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