Deforestation is when human remove or clear large areas of
forest land and related ecosystems for non-forest use.These include clearing
for farming purposes,ranching and urban use.In these cases,trees are never
re-planted.
Where deforestation happen:
Top 10 highest deforestation countries in world:
1)Brazil
2)Indonesia
3)Russia
4)Mexico
5)Papua New Guinea
6)Peru
7)USA
8)Bolivia
9)Sudan
10)Nigeria
Deforestation is one of the causes of environmental
pollution, the phenomenon of the earth warming, famine, floods, accidents in
village forest elephants quit killing people, destroying property ... as well
as the destruction of the forest under the forest canopy caused ecological
imbalance serious, leading to erratic climate change, floods, flash floods,
landslides, and a lot of diseases.
Worldwide, deforestation causing damage to the $ 45 billion
/ year. According to the latest statistics from the Ministry of Environment
America, each year on average in the world with about 33 million hectares of
forest destroyed for many different purposes has generated more than 1.5
billion tons of CO2 into the environment, accounting for 20% of man-made
emissions causing the greenhouse effect makes the earth warmer temperatures.
It is estimated that the deforestation as at present, by
2050, up to two billion people, or 20% of the world population will become
dehydrated. Most of these people suffer from water shortages living in
developing countries. Besides food sources are also at risk threatened to
irrigation water becomes scarce.
Effects of deforestation in watershed VN
According to the latest report of the World Food Programme
(FAO), VN is one of five countries most heavily affected from natural
disasters, especially storms and flooding rain. Rain storms in the territory VN
increasing both the frequency and the dangers, are becoming real threats to
human life and the development of the economy.
Besides the causes such as geographical features, climate
change causes flooding situation in VN is becoming increasingly fierce, there
is a direct cause of the people. Watershed deforestation for logging,
agriculture development, hydropower ... as vegetation in the basin are
decreasing leading to deter poor flow, flood focus faster.
In mid-October last several provinces in central region
floods occurred several days of continuous rain caused heavy losses of life and
property. This time the rain functional departments rated as one hundred years
and concluded, was due to watershed deforestation. When headwater forests are
cut down, the intensity of the floods come quickly, making the water rise very
quickly. Trees to prevent floods, disasters erratic. When the high water, trees
and prevents water power plant roots will absorb flood waters somewhat. There
are trees, water power stronger support, windbreak trees and weaken the power
in the storm passes through the area. According to scientists, the forest areas
and watershed protection forests in the central provinces were razed to make
room for hydropower are losing the ability to regulate water when heavy rains
upstream, this is a major cause caused more severe flooding days.
Our country is actively implementing two major programs such
as the National Target Programme to Respond to Climate Change and National
Programme for Disaster Prevention. The central goal of this program is to plant
and protect forests. From the model performed until results are still quite a
distance away and does not know when the new narrow this gap, to avoid danger
to yourself and future generations.
Solution.
_Curb the felling trees,by employing a series of rules and
laws to gover it.
_Clear cutting of forests must be banned.
_Cutting must be replaced by planting young trees to replace
the older ones that were cut.
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