HydroBASINS lev08 watershed · #2080620750
Bassin de Riu de Siurana
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 2 administrative regions : Lleida, Tarragona
Sub-basin area
607,9km²
Upstream area
607,9km²
Discharge
0,61m³/s
Mean elev.
514m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 605.1 km²99.4% of basin
- 3.7 km²0.6% of basin
16 intersecting protected areas
Serra de Montsant-Pas de l'Ase
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
141.52 km² overlap
Serra de Montsant-Pas de l'Ase
IUCN Not ReportedSpecial Protection Area (Birds Directive)
141.52 km² overlap
Serra del Montsant
IUCN VProtection Plan
117.57 km² overlap
Serra del Montsant
IUCN VNatural Park
92.37 km² overlap
Muntanyes de Prades
IUCN Not ReportedSpecial Protection Area (Birds Directive)
90.21 km² overlap
Muntanyes de Prades
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
90.21 km² overlap
Muntanyes de Prades
IUCN VProtection Plan
90.21 km² overlap
Tivissa-Vandellòs-Llaberia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
68.20 km² overlap
Tivissa-Vandellòs-Llaberia
IUCN Not ReportedSpecial Protection Area (Birds Directive)
68.20 km² overlap
7 more protected areassorted by overlap area
Serra de Llaberia
IUCN VProtection Plan
66.76 km² overlap
Protection Plan
28.73 km² overlap
Riu Siurana i planes del Priorat
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
28.73 km² overlap
Riu Siurana i planes del Priorat
IUCN Not ReportedSpecial Protection Area (Birds Directive)
28.73 km² overlap
Pas de l`Ase
IUCN VProtection Plan
23.95 km² overlap
Protection Plan
1.44 km² overlap
Protection Plan
0.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 229 distinct species · 105 842 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Riu de Siurana : 24 espèces reliées par 79 interactions GloBI sur 6 types (connectance 12.5%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
13,6°C
Annual rain
603mm
Moisture idx (CMI)
-0,38
Runoff
40mm/an
PET
986mm
AET
513mm
Mean slope
11,3°
Water table
604cm
Forest
41%
Crops
28%
Urban
0%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)