HydroBASINS lev08 watershed · #2080417810

Bassin du Néblon

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 : Liège, Luxembourg, Namur

Pfafstetter: 23250865

Sub-basin area

222,1km²

Upstream area

1 669,7km²

Discharge

20,07m³/s

Mean elev.

258m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ourthe163 km²

▲ Receives from 2 basins

Bassin de l'Ourthe525 km²
Bassin de l'Aisne188 km²

3 dept-equivalent regions (GADM L2)

Liège
Wallonie · Belgium
174.3 km²
78.2% of basin
Luxembourg
Wallonie · Belgium
34.4 km²
15.5% of basin
Namur
Wallonie · Belgium
14.1 km²
6.3% of basin

30 intersecting protected areas

Vallée de la Lembrée et affluents
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
6.55 km² overlap
Vallée de la Lembrée et affluents
IUCN Not Reported
Special Protection Area (Birds Directive)
6.55 km² overlap
Vallée de l'Ourthe entre Bomal et Hamoir
IUCN Not Reported
Special Protection Area (Birds Directive)
5.78 km² overlap
Vallée de l'Ourthe entre Bomal et Hamoir
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
5.78 km² overlap
Vallée de l'Ourthe entre Hamoir et Comblain-au-Pont
IUCN Not Reported
Special Protection Area (Birds Directive)
5.50 km² overlap
Vallée de l'Ourthe entre Hamoir et Comblain-au-Pont
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
5.50 km² overlap
Vallée et affluents du Néblon
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.35 km² overlap
Vallée et affluents du Néblon
IUCN Not Reported
Special Protection Area (Birds Directive)
1.35 km² overlap
Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.35 km² overlap

21 more protected areassorted by overlap area

Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not Reported
Special Protection Area (Birds Directive)
0.35 km² overlap
Coteaux de Vieuxville
IUCN IV
State Nature Reserve (Walloon Region)
0.22 km² overlap
Anciennes Carrières de Géromont
IUCN IV
State Nature Reserve (Walloon Region)
0.18 km² overlap
Lembrée (Bois de)
IUCN VI
Forest Reserve (Walloon Region)
0.10 km² overlap
Grande Va (ou Grand Vau)
IUCN VI
Forest Reserve (Walloon Region)
0.10 km² overlap
Bois d'Anthisnes et d'Esneux
IUCN Not Reported
Special Protection Area (Birds Directive)
0.09 km² overlap
Bois d'Anthisnes et d'Esneux
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.09 km² overlap
Thier de Coïsse
IUCN IV
Certified Nature Reserve (Walloon Region)
0.07 km² overlap
Coteau de Sy
IUCN IV
State Nature Reserve (Walloon Region)
0.06 km² overlap
Thier Pirard
IUCN IV
State Nature Reserve (Walloon Region)
0.05 km² overlap
Les Roches Noires
IUCN IV
Certified Nature Reserve (Walloon Region)
0.04 km² overlap
Grand Banc de Géromont à Comblain-au-Pont
IUCN IV
Scientific Interest Site (Walloon Region)
0.04 km² overlap
Basse vallée de l'Aisne
IUCN Not Reported
Special Protection Area (Birds Directive)
0.03 km² overlap
Basse vallée de l'Aisne
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.03 km² overlap
Picherotte
IUCN IV
Certified Nature Reserve (Walloon Region)
0.03 km² overlap
Larbois (Sablière de)
IUCN IV
State Nature Reserve (Walloon Region)
0.02 km² overlap
Rochers de Coïsse
IUCN IV
State Nature Reserve (Walloon Region)
0.02 km² overlap
Les Truchettes
IUCN IV
Certified Nature Reserve (Walloon Region)
0.02 km² overlap
Thier aux Pourcets
IUCN IV
Certified Nature Reserve (Walloon Region)
0.01 km² overlap
Pierreux
IUCN IV
Certified Nature Reserve (Walloon Region)
0.01 km² overlap
Crête (La) à Hamoir
IUCN IV
State Nature Reserve (Walloon Region)
0.01 km² overlap

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

Species present

2 760 distinct species · 38 344 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 du Néblon : 26 espèces reliées par 98 interactions GloBI sur 5 types (connectance 15.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.156

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°

8,9°C

Annual rain

943mm

Moisture idx (CMI)

0,24

Runoff

363mm/an

PET

712mm

AET

598mm

Mean slope

4,5°

Water table

288cm

Forest

31%

Crops

16%

Urban

Protected

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