Basin is understood to be that depression or geographical shape that causes the territory to lose height as it approaches sea level. The hydrographic basins are those that make the water that comes from the mountains or the thaw, descend through the depression until it reaches the sea. In some cases, the basin may not reach sea level if it is a valley enclosed by mountains, in which case the aquifer formation will be a lagoon or lake.
Watersheds can be divided into two main types: endorheic basins, those that do not reach the sea, which result in the formation of stagnant water systems (such as lakes or ponds); and the exorheic basins, those that do reach the sea and therefore are not enclosed between the different sets of mountains. Normally, basins, whether endorheic or exorheic, can generate a large number of tributaries that all fall into the main watercourse, be it sea, ocean, lake or lagoon. At the same time, as these tributaries approach their final destination, they lose their original intensity when they began their descent.
Watersheds are of great importance for the environment as well as for humans. In this sense, they act as important reservoirs of water that can be used not only by humans for personal consumption, different economic activities such as agriculture or navigation, but also for the consumption of animals and plants and therefore development. of complete and durable biotic systems.
It goes without saying that on planet Earth we find numerous hydrographic basins, each possessing particular characteristics. Some of the current seas are considered endoreic hydrographic basins due to the progressive loss of their contact with the ocean.
