Why the often rainy mountains?

According to statistics, the rainfall measured in areas with density of covered forest is several times higher than in places without mountains and forests. More or less rainfall is determined by the amount of water vapor in the air.

The rainfall measured in mountainous areas is several times larger in areas where there is no mountain forest (Photo: craigPotton) The moisture content is distributed in different regions, in the South - China, more water vapor in the air The North is very much, the East is more than the West. Therefore, the rainfall in this year is also higher.

Forests with more rainfall than those with little forest also have the same cause, because the forest is like a giant pump, thanks to trees, it constantly pumps a large amount of water from the ground to the sky. Some people have calculated that one hectare of forest each year can evaporate about 300,000 liters of water, so the areas with a lot of mountains have so much rainfall.

A question arises: Such a large amount of water "is" sucked up into the sky, why is this forest area without water shortage? The soil under the forest always has water, and when it rains a lot, this forest area can quickly replenish the water that has evaporated. As the cycle continues, the trees in the new forest can grow dense.