jarama river survey

Jarama river surveyIES ÁGORA. MARCH 2017

BASIN• Jarama river is the longest in the Region of

Madrid. • It goes along the Region, from North to South in

the East area.

Basin• Along 194

km, this river is retained a few times in reservoirs, and some of the are used to obtain the water we drink.

Jarama a tributary into Tajo / Tagus• Jarama is a tributary into Tajo river. • Tagus is the longest river on the Iberian Peninsula.

It is 1.007 km long, 716 km in Spain, 275 km in Portugal, and 47 km along the border between Portugal and Spain.

The river we see

IES ÁGORA

Animal and plant species

WillowEuropean Aspen

European white birch

Trees

Pyrenean oak

Elm


Bushes

laurel-leaf cistus

Tree heath

French tamarisk


Birds

European bee eater

Booted eagle

Great grey shrike

Eurasian scops owl

Great bustard


Fishes

Largemouth bass Nothern pike

Common carpRainbow trout


Mammals

Red fox Granada hare

European badger

European hedgehog European

wildcat

Wild boar

THREATS OF POLLUTION• The river can be divided in three different parts

along its flow.• Upstream: From the birth of the river towards

Madrid Region borders. Its a very well preserved area, either because of its deserted flow either the inaccessible basin.

THREATS OF POLLUTIONII• Middle basin: From the entrance of the river in Madrid

towards Algete village. Here the river flows along farming and agricultural lands, and as it is easy to get to it, the river becomes increasingly damaged. We can find rests of hunting pellets, debris and human leisure rubbish.

THREATS OF POLLUTIONIII• Downstream: From Algete to the confluction of

the river with Tagus. This is the most polluted part of the river, here, the flow is closer to urban centers so we can find waste waters, illegal mining wastes and debris.

Here the river grows wider, creating a meadow which have been used for agricultural irrigation for centuries. So we can see how the river is drained off in periods of drought.

jarama river survey

Environment