paragraph about the importance of trees in our
life
write a paragraph of about 100 words about the
importance of trees
the importance of trees essay
جمل عن الاشجار بالانجليزيموضوع عن فوائد الاشجار بالانجليزيبرجراف عن اهمية النباتات بالانجليزي
benefits of trees موضوع تعبير عن الاشجار
Importance of Trees in our Life
Short
Paragraph on Trees
Trees
Are Important أهمية الأشجارفوائد الشجرة بالانجليزيةفوائد الشجرة وأهميتهاموضوع عن الشجرة وفوائدهاأهمية
الشجرة في حياة الإنسان - تعبير كتابي عن فوائد الشجرة... خامسة ابتدائي
موضوع عن فوائد الاشجار بالانجليزيموضوع تعبير عن الاشجارموضوع عن قطع الاشجار بالانجليزي
موضوع عن the importance of trees برجراف عن اهمية النباتات بالانجليزيموضوع عن زراعة الاشجار بالانجليزي
paragraph about the importance of trees
write a paragraph of about 100 words about the
importance of trees
paragraph about the importance of trees in our
life
جمل عن الاشجار بالانجليزيموضوع تعبير عن الاشجارموضوع عن قطع الاشجار بالانجليزي
موضوع عن the importance of trees تعبير عن اهمية الاشجار بالانجليزيموضوع عن زراعة الاشجار بالانجليزيموضوع عن النباتات بالانجليزيموضوع انجليزي عن الزراعةموضوع تعبير عن الاشجار
موضوع تعبير عن اهمية الاشجار بالانجليزيوصف الشجرةفوائد الشجرة وكيفية المحافظة عليها
تعبير عن عيد الشجرةتعبير عن فوائد الشجرة وكيفية المحافظة عليهاموضوع عن فوائد الاشجار بالانجليزي
The importance of the tree in human life and ecosystems
> Role of the tree in the ecosystem and in the life of man
The roles of the tree for man:
Psychological role
The tree can enhance spontaneous attention and relax the sensory system.
We can sharpen our concentration when we walk in green spaces. Studies have
shown that hospitalized patients who can look at trees heal faster and suffer
fewer complications than those who do not have access to this type of landscape.
(FAO, 1995). In addition, many tree-dominated panoramas stimulate the
psychological recovery because it provokes positive feelings, mitigates
negative emotions such as fear, anger and sadness, can block or reduce thoughts
that create nervous tension (Bory, 2000). )
Role of relaxation and leisure
Trees provide a direct and / or indirect supply of shade and have a
recreational value as they represent a playground and relaxation area for
children.
Soundproofing role
Trees and other types of vegetation can form screens that have the
ability to reduce the intensity of noise generated by vehicular traffic on
roads and by noisy industries. According to studies, about 20% of the
population is bothered by the noise of the street. Noise can reach levels of
100 dB intermittently and 75 dB permanently near major urban roads. However,
prolonged exposure to sound levels of 85 to 90 dB (A) may result in loss of
hearing. To be effective the plant screens must be dense, tall and wide (25 to
35m wide), their efficiency is even better if they are located in close
proximity to the source of noise.
Decorative role
The use of plants in specific landscaping such as gardens, ornamental
parks but also in more natural designs (bank vegetation) or more rigid
(highway, building), allows to decorate and beautify the spaces, especially
urban. Moreover the presence of the tree is reassuring.
Role of disease treatment
Forests reduce infectious diseases. Undisturbed tropical forests can
have a moderating effect on diseases caused by insects and animals.
Many plants are also used in African medicine. These allow gentle
treatment of diseases of all kinds. In West Africa more than 80% of the
population uses traditional medicine and medicinal plants for their primary
health care.
The role of the tree for ecosystems:
Role of fight against pollution
Trees also have an important role to play in air purification, they
absorb and neutralize many gaseous pollutants (ozone, sulfur dioxide, etc.) and
intercept particulate matter. Trees remove CO2 from the atmosphere, the most
common greenhouse gas during photosynthesis and trap in woody biomass.
Researchers estimate that a tree planted in an urban environment can sequester
5 to 10 times more carbon than a tree planted in rural areas.
Role of fight
against runoff and erosion
Trees intercept and store rainwater on the surface of leaves and
branches, reduce descent to the ground, promote infiltration, reduce runoff and
erosion, and delay the formation of peak flows. Urban forests can also serve as
a living laboratory for environmental and urban education. They help bridge the
gap between urban populations and forests.
Protection role
The forest is home to 80% of the Earth's biodiversity. It protects the
diversity and is the habitat of many animal and plant species.
> Impact of man on the tree: deforestation
4 centuries ago, 66% of the land was covered with forest, today only a
third. Whereas in 1990 forests covered about 4.128 billion hectares or 31.6% of
the world's land area, in 2015 they covered only 3.999 billion hectares or
30.6% (FAO, 2015). According to the World Resources Institute, 80% of the
original global forest cover has been logged or degraded, mostly over the past
30 years. In total, some 129 million hectares of forest - an area almost
equivalent in size to South Africa - have been lost since 1990.
All these figures are alarming and show an overexploitation of man,
eager for conquest. Deforestation affects all tropical forests, especially in
the Amazon, Equatorial Africa and Southeast Asia (Indonesia). These actions
have important consequences, in particular because of all the roles that the
tree assumes.
The consequences of deforestation
The loss of biodiversity
Forests are home to more than 80% of terrestrial biodiversity and are
one of the last refuges for many animal and plant species. This is why
deforestation is a disaster for humans as well as for other species since it is
estimated that 27,000 animal and plant species disappear every year because of
it. This loss of biodiversity, which can be irreversible, cuts humanity away
from invaluable services and resources. Indeed, food systems are highly
dependent on biodiversity and a considerable proportion of drugs are directly
or indirectly of biological origin.
For example, tropical forests provide a variety of
medicinal plants for health care. 80% of people in developing countries depend
on traditional medicines: 50% of them come from the forest. And more than a
quarter of modern medicines are derived from tropical forest plants!
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