HydroBASINS lev08 watershed · #2080614300

Bassin de Riu de Set

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 3 administrative regions : Huesca, Lleida, Tarragona

Pfafstetter: 21604230

Sub-basin area

1 870km²

Upstream area

12 961,1km²

Discharge

83,81m³/s

Mean elev.

311m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Segre38 km²

▲ Receives from 2 basins

Bassin de Noguera Ribagorçana2041 km²
Bassin de el Segre2 km²

3 dept-equivalent regions (GADM L2)

Lleida
Cataluña · Spain
1813.2 km²
96.8% of basin
Huesca
Aragón · Spain
41.3 km²
2.2% of basin
Tarragona
Cataluña · Spain
18.2 km²
1.0% of basin

30 intersecting protected areas

Secans del Segrià i Utxesa
IUCN Not Reported
Special Protection Area (Birds Directive)
76.36 km² overlap
Mas de Melons-Alfés
IUCN VI
Protection Plan
76.05 km² overlap
Secans de Mas de Melons-Alfés
IUCN Not Reported
Special Protection Area (Birds Directive)
76.05 km² overlap
Secans de Mas de Melons-Alfés
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
64.19 km² overlap
Utxesa
IUCN VI
Protection Plan
38.07 km² overlap
Secans del Segrià i Utxesa
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
37.25 km² overlap
Serós-Tossals de Montmeneu
IUCN VI
Protection Plan
28.37 km² overlap
Vall de Vinaixa
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
23.70 km² overlap
Vall de Vinaixa
IUCN Not Reported
Special Protection Area (Birds Directive)
23.70 km² overlap

21 more protected areassorted by overlap area

Vall la Vinaixa
IUCN V
Protection Plan
23.70 km² overlap
Secans de Belianes-Preixana
IUCN Not Reported
Special Protection Area (Birds Directive)
16.59 km² overlap
Secans de Belianes-Preixana
IUCN VI
Protection Plan
16.59 km² overlap
Mas de Melons
IUCN IV
Nature Reserve (Parcial)
14.31 km² overlap
Erms d`Aitona
IUCN VI
Protection Plan
9.92 km² overlap
Muntanyes de Prades
IUCN Not Reported
Special Protection Area (Birds Directive)
8.30 km² overlap
Muntanyes de Prades
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
8.30 km² overlap
Muntanyes de Prades
IUCN V
Protection Plan
8.30 km² overlap
Aiguabarreig Segre-Cinca
IUCN V
Protection Plan
5.31 km² overlap
Aiguabarreig Segre-Cinca
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
5.31 km² overlap
Aiguabarreig Segre-Cinca
IUCN Not Reported
Special Protection Area (Birds Directive)
5.31 km² overlap
Bessons, els
IUCN V
Protection Plan
4.25 km² overlap
Els Bessons
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.25 km² overlap
Els Bessons
IUCN Not Reported
Special Protection Area (Birds Directive)
4.25 km² overlap
Utxesa
IUCN IV
Nature Reserve (Wildlife)
2.65 km² overlap
Aiguabarreig Segre-Noguera Ribagorçana
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.97 km² overlap
Aiguabarreig Segre-Noguera Ribagorçana
IUCN V
Protection Plan
0.97 km² overlap
Tossals de Torregrossa
IUCN V
Protection Plan
0.70 km² overlap
Plans de la Unilla
IUCN VI
Protection Plan
0.21 km² overlap
Plans de la Unilla
IUCN Not Reported
Special Protection Area (Birds Directive)
0.21 km² overlap
Plans de la Unilla
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.21 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

5 394 distinct species · 431 473 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 39 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Riu de Set : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 2 types (connectance 10.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.108

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

14,4°C

Annual rain

489mm

Moisture idx (CMI)

-0,55

Runoff

59mm/an

PET

1 093mm

AET

417mm

Mean slope

3,4°

Water table

314cm

Forest

Crops

90%

Urban

Protected

11%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)