Mugi's presentation .Deforestation ,Climate and Floods

Deforestation is the removal and cutting down of trees

6 causes

1:Agri-business
Its a business in order to raise cattle or grow cash crops like palm and soy which can be used in many producteds

2:Logging
-Building materials
-Comsumer products

3:Mining
It needs considereable amount of forest and land

4:Urbanizatiojn
Construction of road and housing because we have more people

5:Desertification
Because many industries in petrochemicals release their waste into the rivers which results in soil erosion and make it unfit to grow plants

6:Fire
-Extreme warm summers
-Milder winters


The ways to prevent deforestation
-Recycle
-Reforestation
-Farming Practice
-Limit the comsumption
-Use coal
-Support organization

Transpiration

It is a process by which the water is absorbed and released to the atmosphere

it occurs in order to carry the nutrients into plants from soil

Before the deforestation
1:Rain falls
2:Plant absorbs and transpires water
3:Water is released into the air
4:It forms clouds
5:It causes rain again
6:Rain falls

After the deforestation
Climate has changed
1:No tree can absorb and transpire the rainfall
2:Rain runs off the soil
3:Become a cause of floods and soil erosion


Actual Case 1
Yangtze River in China (1998)
-85% of forests in the Yangtze River basin were cut down
-Water flooded into areas where 400 million people lived in monsoon season
-More than 2000 people died
-At least 13 million people left their home

Actual Case 2
Ganges River in Bangladesh
-Deforestation in Himalaya mountain
-Few trees cannot prevent water and it directly flowed into the river