Coniferous+Evergreen+Common+Human+Impacts

=Human Impacts on Coniferous Evergreen Forests= Humans impact the coniferous evergreen forests in various ways, both directly and indirectly.

Logging
Extensive, unrestricted logging in the forests, if continued, can soon contribute to their disappearance. There are two types of logging, clear-cutting and selective.

Clear-cutting is where large swaths of land have their trees removed, usually by machinery. The speed and ease at which large machines can do this makes it one of the biggest dangers to the forests. Developing countries usually utilize this method because they can sell the wood to help their economy, and then develop the space that has been cleared. I3.

Selective logging is when only certain trees are chosen for cutting down. This is usually the largest trees that give the most lumber. The trees that are left are cut down once they have grown more. This is usually the more sustainable form of logging.

Acid Rain
Many millions of trees are dying all over the world due to acidic rain. When elements such as sulfur or nitrogen mix in with the atmosphere, they can precipitate as acid rain. These acids can travel long distances, and destroy nutrients, and making the soil too acidic to support life. If they are weakened by the acidic soil, the trees can be easily finished off by disease.

I4.

Global Warming
As global temperatures rise, and climatic zones shift further north, trees, which lack the ability to migrate, will be killed in large numbers. Some experts estimate the Coniferous Evergreen forests can be reduced by 50-90%. I1. I2.

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