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
Animal and plant species
Bushes
laurel-leaf cistus
Tree heath
French tamarisk
Animal and plant species
Birds
European bee eater
Booted eagle
Great grey shrike
Eurasian scops owl
Great bustard
Animal and plant species
Fishes
Largemouth bass Nothern pike
Common carpRainbow trout
Animal and plant species
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.