The Gardening Department and the engineers from Cork County Council have had great foresight in planting trees, for future generations, throughout the Regional Park.  A series of signs have been erected  as part of the drive to increase people’s awareness about the importance of trees. These signs are fastened (in a tree friendly way) to the bark of trees and not only can we walk through the wonderful Regional Park and enjoy its beauty but we can also educate ourselves in this small way.
Trees create an ecosystem to provide habitat and food for birds and other animals.They absorb carbon dioxide and potentially harmful gasses, such as sulphur dioxide and carbon monoxide, from the air and release oxygen. One large tree can provide a day’s supply of oxygen for four people. Trees reduce the amount of storm water runoff, which reduces erosion and pollution in our waterways and may reduce the effects of flooding. Many species of wildlife depend on trees for their habitat. They provide food, protection, and homes for many birds and mammals. 
The link below gives some wonderful information on the benefits of trees.