Why are Forests Important?
Forests and trees are a crucial part of
life on Earth—from maintaining biodiversity and cleaning the air and
water, to providing basic human needs and contributing to culture and
recreation.
Read on to discover how forests play a critical role in our daily lives.
Read on to discover how forests play a critical role in our daily lives.
It is estimated that over 1.6 billion people
worldwide depend directly on forests for their livelihoods, including
for food, clothing, shelter and traditional medicine.
Forest industries employ 60 million people worldwide.
Approximately 300 Canadian communities rely on forests for at least 50%
of their economy.
Forests are an important source of raw
materials. The rural poor depend on forest products to meet their basic
needs. For instance, almost three billion people worldwide depend on
wood for fuel for heating and cooking. Industries use forests to
provide both timber and non-timber products. Timber products comprise
lumber (used to make construction materials and furniture), pulp and
paper, and other wood-based products.
Non-timber forest products (NTFPs), such as
berries, medicinal herbs, saps and oils are also an important part of
the forestry industry. For instance, natural forest products are the
only source of medicine for 75% to 90% of people in developing
countries. Edible products, such as berries, nuts, seeds, mushrooms and
edible flowers help support many communities’ diets, while saps are
used in a range of products, from maple syrup to rubber
Trees clean the air. In particular,
tress with large leaf-surface areas absorb nitrous oxides, sulphur
dioxide, carbon monoxide and ground-level ozone, which contribute to
air pollution.
The world’s forests store enormous
amounts of carbon dioxide – twice the amount found in the atmosphere–
which helps mitigate climate change. The carbon offsetting service provided by tropical forests is estimated to be worth up to $140 billion per year.
Trees help to conserve energy by providing shade in the summer. They also serve as a shelter from the wind in the winter.
Tree roots play an important role in holding
soil together and preventing it from being eroded (washed away) by wind
or rain. In tropical countries, poorly managed forests lead to soil
erosion, which accounts for losses of approximately 10% of agricultural
gross domestic product each year.
Forests also play an important role in purifying our water.
Having well managed forested areas helps reduce storm runoff (water
that cannot be absorbed by soil), which helps keep local water bodies
clean from pesticides, fertilizers and other pollutants.10 In fact,
many protected forest areas are managed specifically with the goal of
maintaining their watershed protection.
Forests around the world are home to up to 90% of the world’s terrestrial biodiversity.
For example, about two thirds of Canada’s 140,000 species are found in
or dependent upon forests, including black bears and grizzly bears,
caribou and grey wolves, as well as a diversity of flowers, plants and
trees, such as fir, birch and oak trees.
In addition to cleaning the air and
water, trees in the city have a number of less obvious benefits. The
presence of trees can improve the image of an area and help to build
stronger, safer communities. Green settings also seem to improve
concentration in children with attention-deficit hyperactivity disorder
(ADHD) and improve recovery time for hospital patients with window
views.
The fact that forests are so important to our
day-to-day lives and to the ongoing functioning of the global ecosystem
is reflected in the importance forests and trees hold in virtually all
cultures. In many religions, for example, trees are considered sacred
or are important parts of local lore and mythology.
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