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Lichens occur from sea level to high alpine elevations, in a very wide range of environmental conditions, and can grow on almost any surface. Different kinds of lichens have adapted to survive in some of the most extreme environments on Earth: arctic tundra, hot dry deserts, rocky coasts, and toxic slag heaps. They can even live inside solid rock, growing between the grains. Some lichens do not grow on anything, living out their lives blowing about the environment. It is estimated that 6% of Earth's land surface is covered by lichen. | Lichens occur from sea level to high alpine elevations, in a very wide range of environmental conditions, and can grow on almost any surface. Different kinds of lichens have adapted to survive in some of the most extreme environments on Earth: arctic tundra, hot dry deserts, rocky coasts, and toxic slag heaps. They can even live inside solid rock, growing between the grains. Some lichens do not grow on anything, living out their lives blowing about the environment. It is estimated that 6% of Earth's land surface is covered by lichen. | ||
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====distinguish points of Lichen==== | ====distinguish points of Lichen==== | ||
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1. Lichen can live a vary wide range of environmental conditions. They can grow on almost any surface. Different kinds of lichen have adapted to survive in the most extreme ecological conditions. Even they can survive in space station outside of earth. | 1. Lichen can live a vary wide range of environmental conditions. They can grow on almost any surface. Different kinds of lichen have adapted to survive in the most extreme ecological conditions. Even they can survive in space station outside of earth. | ||
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4. Distinct physical mechanisms by which lichens break down the raw stone, recent studies indicate lichens attack stone chemically, entering newly chelated minerals into the ecology. [3] | 4. Distinct physical mechanisms by which lichens break down the raw stone, recent studies indicate lichens attack stone chemically, entering newly chelated minerals into the ecology. [3] | ||
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==== References==== | ==== References==== | ||
[1] Max-Planck-Gesellschaft, www.mpg.de/9324146/lichens-mosses-nitrous-oxide<br> | [1] Max-Planck-Gesellschaft, www.mpg.de/9324146/lichens-mosses-nitrous-oxide<br> | ||