Bed-drain in the Adaja
THE ADAJA RIVER
Description
The Adaja river flows through the Ambles Valley. It rises in Villatoro port. It has a narrow place of birth and with a lot of stones. It crosses the Valley into the east. It is 41 kilometres long. His hanging is imprecise and it comes to Avila.
-Its tributaries:
* On the left: they are little important ones because they rise in Avila Mountain Range that is not high and where it does not rain much.
* On the right: they are larger.
* The most important tributary is the Chico. It rises in Serrota Mountain Range.
Bed drain
-Reasons: the scarcity of rains that the valley has, it provokes the poverty and irregularity of flow.
In winter it grows even to overflow and in summer it disappears.
-Consequences:
For animals:
Fish die because they haven´t habitat to live. Other animals die because the river provides them with water too. The vegetation doesn´t grow because it hasn´t a supply of water and mineral salts.
For the riparian forest.
The forests that are by rivers are implement to obtain a good habitat for life. As there is forest and river they are good for water because they eliminate sediments, because in this water there are nutrients for the plants and aquatic animals to live. This type of forest and the rivers could neutralize possible pesticides too.
Carolina Martín Martín
Lorena Martín García
Inmaculada San Segundo González