HydroBASINS lev08 watershed · #2080603500
Bassin de Riera de Sorreigs
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 : Barcelona, Girona
Sub-basin area
454,6km²
Upstream area
1 130,9km²
Discharge
20,12m³/s
Mean elev.
830m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Torrent de les Vernedes357 km²
- Bassin de Riu Ter320 km²
2 dept-equivalent regions (GADM L2)
- 280.6 km²61.6% of basin
- 174.7 km²38.4% of basin
7 intersecting protected areas
Sistema Transversal català
IUCN Not ReportedSpecial Protection Area (Birds Directive)
127.39 km² overlap
Sistema Transversal català
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
127.39 km² overlap
Protection Plan
110.50 km² overlap
Collsacabra
IUCN VProtection Plan
9.43 km² overlap
Montesquiu
IUCN VProtection Plan
7.44 km² overlap
Riera de Sorreigs
IUCN VProtection Plan
2.87 km² overlap
Riera de Sorreigs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.87 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 650 distinct species · 117 321 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Riera de Sorreigs : 31 espèces reliées par 109 interactions GloBI sur 6 types (connectance 11.5%, filtre Serrano α=0.2). 13 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°
11,4°C
Annual rain
845mm
Moisture idx (CMI)
0,02
Runoff
375mm/an
PET
824mm
AET
677mm
Mean slope
11,9°
Water table
408cm
Forest
92%
Crops
8%
Urban
8%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)