Transcript
Segura basin
Basin and route through one of the most important Spanish river and the main of Murcia.
By: Elisa y Claudia
IndexGeneral introduction to the basin PresentationRoute: - High Course - Middle Course - Low Course
General introduction to the basin The Segura basin is located in the southwest of the
peninsula and it takes up a space of 18.606 km2; that 14 936 km2 belongs to Segura river.
Introduction The Segura river born in
Pontones (Jaén), located on the Segura range, with 1.413 altitude meters. In its route of 325 km, across the provinces of Jaén, Albacete y Murcia to flow into the Mediterranean shore.
Its route it is divided on several tributaries, that are Mundo river, Guadalentín river and Argos river. Some of revoirs are Santomera, Almadenes, Pedrera y Taibilla.
Presentation On the one hand, the level to
make the most is very high if we compares it with other Spanish rivers. This affect in negative form.
Floods are also very larges. It is considerate the river which has the most controls of Europe, and the best adjusted.
The river it has got a very important lack of water on some zones and it has conditionated murcianos life for its irregularity.
Route: middle course of the river
The river goes through Valle de Ricote, goes out of it to across the locality of Archena, where cross for Vega Media.
Later, it’s started la Huerta de Murcia. Then of Orihuela, the route is modified to the west, going in the trench tectonic defined between Benejúzar y Guardamar.
Route: high course of the river The river born in a natural cave flooded, to 1.413 altitude metres, in
the Segura range. During its first kilometres the rivers go through for valley where receives tributaries such as Madera, Zumeta and Tus rivers. The valley is closed for reservoirs like Fuensanta and Cenajo.
Route: middle course of the river The river receives its main
tributary the Mundo river, her the valley starts to wide forming a narrow alluvial plain really fertile, called "vega" .
Ir receive tributaries like Benamor, Argos and Quípar, to penetrate later at the basins that formes theVega Alta del Segura, zone which is made the most of irrigation.
Route: middle course of the river The trench that goes from the Contraparada up to the mouth
formed part of the Depresión prelitoral murciana where the Guadalentín goes with the Segura after passing Murcia city, and is the center of a valley that starts in Puerto Lumbreras.
Route: middle course of the river Here the alluvial plane begins
to have a width that is positioned about the50 msnm, for this reason it has a very important made the most of the river around the Murcia city that causes a reduce on the river flow, with the pollution troubles that have been improved on the last years. The most important tributaries are the Mula and the Guadalentín rivers.
Route: low course of the river Once time that the Segura
goes into the province of Alicante; begins the last stretch of the Vega Baja del Segura.
The most space of the river is canalized to avoid floods, but the canal is considered low since has a capacity about 250 m³/s in Orihuela.
Route: low course of the river The mouth in the
Mediterranean sea is produced on the north of Guardamar del Segura, and leaves the Segura vega as a zone closed to the sea. It has a width of 221 m in the artificial canal in its mouth. Since the closed zone is very low there are gaps. The caudal that contributes to the sea has been reduced to less of 1 m³/s.
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