[1.10] Competition for Space/ Urban Intensification
The National Planning Framework targets 60% population growth for Cork City by 2040. This will result in an additional 125,000 people living in the city within 20 years. While trees can often be designed into new development, some removal of existing lower value stock and supplemental planting is also likely. [1.11] Perceived Nuisance or Liability Property owners may remove trees or avoid planting them in the first instance due to the perceived potential for liability or property damage, inconvenience associated with leaf fall, the economic costs of maintaining trees, or boundary disputes where trees overhang neighbouring properties. [1.12] Climate Change Trees help mitigate the effects of climate change. However, certain species of trees are also at risk due to predicted increases in extreme weather, including damage caused by stronger and more frequent storm events and by summer heat. These changes may be exacerbated by indirect causes such as more stressful weather conditions and reduced tolerance to pests and diseases. The direct and indirect impacts of climate change may result in a decline in tree health in some species and/or an increased difficulty in establishing young trees. [6] [1.13] Pests and Disease Various insects and diseases can affect trees, reducing both their health and value. This includes diseases introduced by global trade. For example, the fungus that causes ash dieback was imported to Ireland from Asia in the 1990s and poses a serious threat to our native Ash (Fraxinus excelsior) population.[6] As noted above, impacts from pests and diseases are expected to increase due to climate change. [1.14] Other Health Stressors Other factors that negatively impact tree health in urban environments include air pollution from transport, poor- quality soil, and lack of tree management and after-care.
[ Trees in Cities: Their Importance and Challenges ]
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