Environment »Lake

Definition of Lake

Lago The geography of our planet is vast and in the distribution of that great space there is a huge amount of elements and phenomena that lie on it. Meanwhile, the lakes are one of the most common and large bodies of water with which we can find on earth. They are mostly freshwater and accumulate in the depressions of the land.

Then, we understand by lake a mass of water that is characterized by the little or no movement of matter. This body of water is far from the sea unlike the rivers and it is considered that its origin has to do with glaciations since usually the lake is located near mountainous areas or valleys. For there to be a lake, there has to be, as we have already pointed out, a depression of the land in the same way that happens with the valleys. The depth and extent of the lakes has to do precisely with the physical characteristics that depression has.

How do lakes form?

Unlike what happens with ocean and sea waters, the lake is usually made up of fresh water. There are several ways through which a lake can be formed, including the movement of teutonic plates and the consequent formation of depressions of the terrain. These depressions can also be generated by volcanic movements. Another possibility is the formation or melting of glaciers. Finally, the slipping of sediments that block the exit of a river or a moving watercourse can also occur.

Changes in your levels

Being a stable and still body of water, the lake observes its level changes through external actions. The increase in the water level of a lake can occur through the constant and abundant rainfall that causes the lake level to rise and in the most extreme cases it can overflow its level; by possible tributaries; while the descent can occur from evaporation, by underground tributaries or by the action of the human being who uses water as a natural resource.

Main lakes of the world

It is estimated that more than 60% of the world's lakes are located in the current territory of Canada. Among the most important and famous lakes on the planet we should mention the Great Lakes of North America (Lake Superior, Michigan, Ferret, Erie and Ontario), the Siberian lake of Baikal (the deepest in the world), the African lake Tanganyika (the largest of the world), Lake Titicaca in Peru, the Dead Sea (despite being known as the sea, it is the lowest lake in the world), Lake Eyre in Australia, among others.

A tremendously beautiful landscape

Another issue associated with lakes and that we cannot ignore when referring to these large bodies of water that cover much of our planet is the beauty that emanates from them. Without a doubt, the lakes are one of the most beautiful landscapes to see, especially when they are surrounded by mountains, certainly in these cases the landscape that is observed is beautiful.

In recent years, in some parts of the world there has been a boom in the construction of neighborhoods around a lake, precisely because of the beauty of the landscape and the natural imprint of living together or just meters from a lake.

People who like natural ways of life and away from the smog of the city often opt for this type of housing surrounded by lakes and located in suburban areas.

Artificial lakes

And when there are no lakes but there is a need to have such a body of water it is possible to create them artificially. New technologies bring us infinite possibilities and the creation of artificial lakes is one of them without a doubt. Basically they are generated to take advantage of hydraulic energy , to have a source of potable water or for the purpose of carrying out some type of sports activity that requires water.

Author: Cecilia Bembibre | Site: - definition | Date: September. 2009 | URL: /medio-ambiente/lago.php