Презентация на тему Экологические проблемы леса

Problems the ecology of forests

The importance of forests is enormous. The forest provides mankind with oxygen. The forest produces oxygen and naturally utilizes chemical impurities, cleans the air.

Problems:

• 1. Weather change. Atmospheric air is becoming increasingly polluted, which leads to an increase in the incidence of lung cancer, diseases of the respiratory system of different genesis, nervous disorders. A growing number of allergies, people with congenital malformations, are also referred to as excessive air saturation, which are not useful for the human body.

• 2. Hunting and poaching
• Poaching - the extreme degree of non-compliance with forest protection standards. This is a hunt, conducted in a forbidden place on animals that are banned from extermination. As a result of the uncontrolled activity of violators, entire species of living beings may disappear.

• Hunting for predators leads to the growth of large-seeded plants, they begin to dominate the forest. The worst thing is that poaching can lead to the spread of contagious diseases, by transferring from mutant animals to mutant rotoviruses.

• 3. Increasing forest fires About two million tons of organics suffer from fires in the forest every year. In forests, the growth of trees decreases, the qualitative composition of plants decreases, the area of ​​windbreaks grows, the soil structure worsens. In the absence of the forest, harmful species of insects and fungi that destroy the tree are spread.

• Careless handling of matches, lighters, open fire, ignorance and non-compliance with fire safety regulations contribute to a rapid ignition, which in a matter of minutes can spread to kilometers of forest massifs.

• 4. Clogging of forests Garbage in the forest represents a potential hazard to human health, wildlife and the ecosystem as a whole. A lot of money is being spent on the garbage collection from the treasury of any country. Voluntary work aimed at cleaning the forest from debris can not be underestimated. However, every citizen should follow the forest cleanness.

• 5. Deforestation
• The damage caused by deforestation is enormous. With the disappearance of trees, less oxygen is formed by photosynthesis, but the amount of carbon dioxide accumulates. This leads to another world environmental problem - the greenhouse effect. The soil is destroyed, a steppe or desert forms on the place of the forest. Deforestation affects even the melting of glaciers.

Take care of the forest!

Thank you for attention!