Trees are important to the water cycle. They absorb rain fall and produce water vapor that is released into the atmosphere. Trees also lessen the pollution in water, according to the North Carolina State University, by stopping polluted runoff. In the Amazon, more than half the water in the ecosystem is held within the plants, according to the National Geographic Society.
So, trees and plants clean air and water and they regulate water levels. The felling of trees on a massive scale is one of the main causes of environmental destruction. With every tree that disappears, the cleaning function of the forest becomes less effective. At some point, it will become hard to find clean water.
The rain forest disappears at an alarming rate – 36 football fields per minute. Where trees are felled, the root system that absorbs rain water disappears as well. Subsequently, water simply runs downhill into rivers, washing out top soil. The remaining soil dries out, crumbles and is blown away by the wind. Sometimes, this top soil can be farmed for a few years, but it’s a poor and thin layer so it’s quickly exhausted. Farmers than move on to slash another tract of rainforest.
The felling of trees causes natural disasters. The unchecked running off of water results in droughts in higher areas and in mud slides and floods in lower areas.