环境保护 environment protection.ppt

Rainforest Plant is important for the eatth Forest is the most concentrated place of plants and the tropical rainforest contains the uncountable kinds of species. Rainforest is the lung of the earth This is the distribution of the rainforest onEarth There are three main reinforest on Earth:one is in Africa, another one is in South-eastern Asion and the last one is in South America. What can rainforest do? ecosystem services: Rain forests play an important role in maintaining biological diversity, modulating precipitation, infiltration and flooding, increasing scientific knowledge and in the spiritual well-being of humans. Such ecosystem services are of use to humans without the need for any modification or management of the forest yourself. Social services: Conversion to agricultural land, Cultivated foods and spices, Pharmaceutical and biodiversity resource, Tourism Some kinds of the species Now !The rainforest is being destroyed! One reason is the forest fire. The other one is the human. Human destruction of rainforest This fire was made by people who lived there! They wanted to exploit more arable land to supply them with food and also many people wanted to make money by the charcoal left after the fire Thick smoke hang over the forest This series of images shows aerosols over the Amazon each September for 4 burning seasons Cause Corruption of government institutions The inequitable distribution of wealth and power Population growth Overpopulation Urbanization Globalization is often viewed as another root cause of deforestation This show the transformation from forest to farm. The white square is the forest destroyed This is the road in forest Poverty Developed countries’ request of valuable timber Harmness of Such Deforest Atmospheric problems:greenhouse effect Soil problem:soil loss, desertification of land and desert encroachmen Ecological problem:biodiversity decline The end  * The last green! *