Most trees and shrubs in cities or communities are planted to
provide beauty or shade. These are two excellent reasons for
their use. Woody plants also serve many other purposes, and it
often is helpful to consider these other functions when
selecting a tree or shrub for the landscape. The benefits of
trees can be grouped into social, communal, environmental, and
economic categories.
Social Benefits
We like trees around us because they make life more pleasant.
Most of us respond to the presence of trees beyond simply
observing their beauty. We feel serene, peaceful, restful, and
tranquil in a grove of trees. We are “at home” there. Hospital
patients have been shown to recover from surgery more quickly
when their hospital room offered a view of trees. The strong
ties between people and trees are most evident in the resistance
of community residents to removing trees to widen streets.
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note the heroic efforts of individuals and organizations to save
particularly large or historic trees in a community.
The stature, strength, and endurance of trees give them a
cathedral-like quality. Because of their potential for long
life, trees frequently are planted as living memorials. We often
become personally attached to trees that we or those we love
have planted.
Communal Benefits
Even though trees may be private property, their size often
makes them part of the community as well. Because trees occupy
considerable space, planning is required if both you and your
neighbours are to benefit. With proper selection and maintenance,
trees can enhance and function on one property without
infringing on the rights and privileges of neighbours.
City trees often serve several architectural and engineering
functions.
fake rolex sale They provide privacy, emphasize views, or screen out
objectionable views. They reduce glare and reflection. They
direct pedestrian traffic. They provide background to and
soften, complement, or enhance architecture.
Environmental Benefits
Trees alter the environment in which we live by moderating
climate, improving air quality, conserving water, and harbouring
wildlife. Climate control is obtained by moderating the effects
of sun, wind, and rain. Radiant energy from the sun is absorbed
or deflected by leaves on deciduous trees in the summer and is
only filtered by branches of deciduous trees in winter.
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cooler when we stand in the shade of trees and are not exposed
to direct sunlight. In winter, we value the sun’s radiant
energy. Therefore, we should plant only small or deciduous trees
on the south side of homes.
Wind speed and direction can be affected by trees. The more
compact the foliage on the tree or group of trees, the greater
the influence of the windbreak. The downward fall of rain,
sleet, and hail is initially absorbed or deflected by trees,
which provides some protection for people, pets, and buildings.
Trees intercept water, store some of it, and reduce storm runoff
and the 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.
Temperature in the vicinity of trees is cooler than that away
from trees. The larger the tree, the greater the cooling. By
using trees in the cities, we are able to moderate the
heat-island effect caused by pavement and buildings in
commercial areas.
Air quality can be improved through the use of trees, shrubs,
and turf. Leaves filter the air we breathe by removing dust and
other particulates. Rain then washes the pollutants to the
ground. Leaves absorb carbon dioxide from the air to form
carbohydrates that are used in the plant’s structure and
function. In this process, leaves also absorb other air
pollutants—such as ozone, carbon monoxide, and sulfur
dioxide—and give off oxygen.
By planting trees and shrubs, we return to a more natural, less
artificial environment. Birds and other wildlife are attracted
to the area. The natural cycles of plant growth, reproduction,
and decomposition are again present, both above and below
ground. Natural harmony is restored to the urban environment.
Economic Benefits
Individual trees and shrubs have value, but the variability of
species, size, condition, and function makes determining their
economic value difficult. The economic benefits of trees can be
both direct and indirect. Direct economic benefits are usually
associated with energy costs. Air-conditioning costs are lower
in a tree-shaded home. Heating costs are reduced when a home has
a windbreak. Trees increase in value from the time they are
planted until they mature. Trees are a wise investment of funds
because landscaped homes are more valuable than non-landscaped
homes. The savings in energy costs and the increase in property
value directly benefit each home owner.
The indirect economic benefits of trees are even greater. These
benefits are available to the community or region. Lowered
electricity bills are paid by customers when power companies are
able to use less water in their cooling towers, build fewer new
facilities to meet peak demands, use reduced amounts of fossil
fuel in their furnaces, and use fewer measures to control air
pollution. Communities also can save money if fewer facilities
must be built to control storm water in the region. To the
individual, these savings are small, but to the community,
reductions in these expenses are often in the thousands of Euro.
Trees Require an Investment
Trees provide numerous aesthetic and economic benefits but also
incur some costs. You need to be aware that an investment is
required for your trees to provide the benefits that you desire.
The biggest cost of trees and shrubs occurs when they are
purchased and planted. Initial care almost always includes some
watering. Leaf, branch, and whole tree removal and disposal can
be expensive.
To function well in the landscape, trees require maintenance.
Much can be done by the informed home owner. Corrective pruning
and mulching gives trees a good start. Shade trees, however,
quickly grow to a size that may require the services of a
professional Tree Surgeon or Arborist. Arborists have the
knowledge and equipment needed to prune, spray, fertilize, and
otherwise maintain a large tree.
At All Year Round Tree Care we have the
skill, experience and enthusiasm to answer all your questions
relating to the planting and maintenance of your investment in
trees.