HydroBASINS lev08 watershed · #2080017010
Bassin de Riera de Sant Llorenç
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 1 administrative regions : Barcelona
Sub-basin area
141,3km²
Upstream area
141,3km²
Discharge
0,49m³/s
Mean elev.
120m
Administrative coverage
12 intersecting protected areas
Massís del Garraf
IUCN VProtection Plan
46.45 km² overlap
Serres del Litoral central
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
46.45 km² overlap
Serres del Litoral central
IUCN Not ReportedSpecial Protection Area (Birds Directive)
46.45 km² overlap
Delta del Llobregat
IUCN VProtection Plan
12.59 km² overlap
Delta del Llobregat
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.32 km² overlap
Delta del Llobregat
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.32 km² overlap
Costes del Garraf
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.94 km² overlap
Costes del Garraf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.94 km² overlap
Costes del Garraf
IUCN VProtection Plan
1.94 km² overlap
3 more protected areassorted by overlap area
Ricarda-Ca l`Arana
IUCN IVNature Reserve (Parcial)
1.63 km² overlap
Espacio marino del Baix Llobregat-Garraf
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.17 km² overlap
Remolar-Filipines
IUCN IVNature Reserve (Parcial)
1.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 395 distinct species · 230 727 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Sant Llorenç : 28 espèces reliées par 93 interactions GloBI sur 3 types (connectance 14.0%, filtre Serrano α=0.2). 9 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°
16,1°C
Annual rain
630mm
Moisture idx (CMI)
-0,31
Runoff
182mm/an
PET
908mm
AET
534mm
Mean slope
7,1°
Water table
300cm
Forest
41%
Crops
2%
Urban
60%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)