HydroBASINS lev08 watershed · #2080414830
Bassin de Ourthe
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 : Liège
Sub-basin area
162,5km²
Upstream area
2 897,1km²
Discharge
35,56m³/s
Mean elev.
217m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Amblève1065 km²
- Bassin du Néblon222 km²
19 intersecting protected areas
Bois d'Anthisnes et d'Esneux
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.76 km² overlap
Bois d'Anthisnes et d'Esneux
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.76 km² overlap
Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.38 km² overlap
Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.38 km² overlap
Sart-Tilman
IUCN IVCertified Nature Reserve (Walloon Region)
2.37 km² overlap
Bois de la Neuville et de la Vecquée
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.56 km² overlap
Bois de la Neuville et de la Vecquée
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Plateau des Sources
IUCN IVState Nature Reserve (Walloon Region)
0.21 km² overlap
Vallée de l'Ourthe entre Hamoir et Comblain-au-Pont
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.15 km² overlap
10 more protected areassorted by overlap area
Vallée de l'Ourthe entre Hamoir et Comblain-au-Pont
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Tartines de Comblain
IUCN IVState Nature Reserve (Walloon Region)
0.06 km² overlap
Basse vallée de la Vesdre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Basse vallée de la Vesdre
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.01 km² overlap
La Falie
IUCN IVCertified Nature Reserve (Walloon Region)
0.00 km² overlap
Brialmont (Grotte de)
IUCN IVScientific Interest Site (Walloon Region)
0.00 km² overlap
Monceau (Grotte de
IUCN IVState Nature Reserve (Walloon Region)
0.00 km² overlap
Scientific Interest Site (Walloon Region)
0.00 km² overlap
Basse vallée de l'Amblève
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Basse vallée de l'Amblève
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 324 distinct species · 107 496 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Ourthe : 16 espèces + 10 bulles famille, 52 interactions GloBI documentées sur 4 types (connectance 16.0%, filtre Serrano α=0.2). Les 10 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,1°C
Annual rain
924mm
Moisture idx (CMI)
0,23
Runoff
359mm/an
PET
714mm
AET
596mm
Mean slope
5,1°
Water table
287cm
Forest
27%
Crops
11%
Urban
26%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)