- Benefits of Trees
- Caring for Trees
- Pruning Landscape Trees
- Borough Shade Trees
- Oldest Street Trees in Princeton
- Recommended Trees for Princeton
- Construction – Protecting Trees before and after Construction
- Trees for Kids
- Reasons not to top trees
- Tree Fact Sheets
- Bacterial Leaf Scorch
- Deer Resistant Plants
- Mulching trees
- Urban Tree Resources
- MAPS / WALKS
Benefits of Trees
Benefits of Trees
Among the direct economic benefits of trees are lowered energy costs to homeowners, lower air conditioning costs, lower heating costs when trees are planted as windbreaks, and value added from landscaped vs. non-landscaped homes (from 5-20% value difference). The net cooling effect of a young, healthy tree is equivalent to 10 room-size air conditioners operating 20 hours a day, according to the U.S. Department of Agriculture.
According to Pepper deTuro, certified NJ arborist and PBSTC Advisory Board member:
- One mature tree provides enough oxygen for four people.
- A single maple tree with a diameter of 30 cm can extract between 5 and 10 grams of heavy metals from the soil each year, which helps decontaminate urban lands.
- A healthy mature tree can absorb between 2.5 and 5 kg of carbon each year, which slows down climate change and about 7000 fine particulates in each liter of air, which decreases the incidence of respiratory diseases.
- Trees protect us against the heat island effect by creating shade and pulling water out of the soil and into the atmosphere; a large oak tree can transpire more than 400 liters of water a day.
Trees serve as noise barriers. Birds are attracted to the area. Leaves filter the air we breathe by removing dust and other particulates. Rain then washes pollutants to the ground. Leaves absorb carbon dioxide from the air, as well as other pollutants, ozone, carbon monoxide, and sulphur dioxide. They give off oxygen. Temperature near trees is cooler than away from them. Trees moderate the pavement /concrete heat effects in urban settings. Wind speed and direction can be affected by trees, Trees reduce storm runoff and possibility of flooding. Dew and frost are less common under trees because less radiant energy is released from the soil in those areas at night.
Trees improve air quality, conserve water and harbor wildlife. They moderate the climate, improve air quality and conserve water. Go figure.