HydroBASINS lev08 watershed · #2080419160
Bassin de la Sambre
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 across 2 countries : Hainaut, Namur, Nord
Sub-basin area
850,9km²
Upstream area
1 691,6km²
Discharge
20,04m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Helpe Mineure517 km²
- Bassin de l'Helpe Majeure324 km²
3 dept-equivalent regions (GADM L2)
- 437.7 km²51.3% of basin
- 406.0 km²47.5% of basin
- 10.2 km²1.2% of basin
68 communes (GADM L5)Available for FRA, RWA
- Locquignol26.03 km²27% commune
- Cousolre21.35 km²100% commune
- Colleret18.93 km²100% commune
- Maubeuge18.20 km²95% commune
- Feignies16.84 km²89% commune
- Beaufort12.67 km²100% commune
- Hautmont12.25 km²100% commune
- Berlaimont12.21 km²94% commune
- Bousignies-sur-Roc11.62 km²100% commune
- Pont-sur-Sambre11.59 km²100% commune
- Solre-le-Château11.45 km²83% commune
- Saint-Aubin10.23 km²96% commune
- Ferrière-la-Grande10.01 km²100% commune
- Jeumont9.79 km²99% commune
- Bachant9.22 km²100% commune
- Aibes8.98 km²100% commune
- Dourlers8.68 km²98% commune
- Aulnoye-Aymeries8.67 km²100% commune
- Dimont7.82 km²100% commune
- Limont-Fontaine7.48 km²100% commune
- Beaurieux7.15 km²100% commune
- Beugnies7.09 km²80% commune
- Monceau-Saint-Waast6.19 km²100% commune
- Wattignies-la-Victoire6.06 km²100% commune
- Boussois5.96 km²99% commune
- Recquignies5.95 km²100% commune
- Hestrud5.90 km²100% commune
- Saint-Remy-du-Nord5.85 km²100% commune
- Leval5.84 km²100% commune
- Rousies5.84 km²100% commune
- Vieux-Mesnil5.64 km²98% commune
- Solrinnes5.59 km²100% commune
- Louvroil5.47 km²100% commune
- Bérelles5.43 km²100% commune
- Ferrière-la-Petite5.41 km²100% commune
- Obrechies5.27 km²100% commune
- Damousies5.27 km²100% commune
- Hargnies4.98 km²100% commune
- Saint-Remy-Chaussée4.89 km²100% commune
- Lez-Fontaine4.77 km²100% commune
- Dimechaux4.72 km²100% commune
- Floursies4.72 km²100% commune
- Sars-Poteries4.68 km²61% commune
- Éclaibes4.63 km²100% commune
- Marpent4.54 km²88% commune
- Quiévelon4.40 km²100% commune
- La Longueville4.39 km²25% commune
- Cerfontaine3.95 km²100% commune
- Eccles3.68 km²100% commune
- Clairfayts3.38 km²44% commune
- Sassegnies3.27 km²81% commune
- Boussières-sur-Sambre3.26 km²100% commune
- Écuélin3.22 km²100% commune
- Saint-Hilaire-sur-Helpe2.96 km²19% commune
- Semousies2.77 km²96% commune
- Choisies2.42 km²100% commune
- Noyelles-sur-Sambre2.17 km²34% commune
- Assevent1.70 km²84% commune
- Dompierre-sur-Helpe1.56 km²12% commune
- Neuf-Mesnil1.19 km²100% commune
- Gognies-Chaussée0.50 km²6% commune
- Bas-Lieu0.34 km²4% commune
- Vieux-Reng0.33 km²3% commune
- Élesmes0.18 km²3% commune
- Mairieux0.07 km²1% commune
- Audignies0.03 km²1% commune
- Felleries0.02 km²0% commune
- Taisnières-en-Thiérache0.01 km²0% commune
30 intersecting protected areas
Avesnois
IUCN VRegional Nature Park
319.42 km² overlap
Haute-Sambre en aval de Thuin
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.18 km² overlap
Haute-Sambre en aval de Thuin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.18 km² overlap
Vallée de la Sambre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.13 km² overlap
Haute vallée de la Thure
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.05 km² overlap
Haute vallée de la Thure
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.05 km² overlap
Sources de la Hante
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.87 km² overlap
Sources de la Hante
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.87 km² overlap
Vallée de la Hante
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.30 km² overlap
21 more protected areassorted by overlap area
Vallée de la Hante
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.30 km² overlap
Forêts de Mormal et de Bois l'Evêque, Bois de la Lanière et Plaine alluviale de la Sambre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.95 km² overlap
Haute-Sambre en amont de Thuin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.94 km² overlap
Haute-Sambre en amont de Thuin
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.94 km² overlap
National park - core area
3.42 km² overlap
Forêts de Rance
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.06 km² overlap
Forêts de Rance
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.06 km² overlap
Biotope Protection Order
2.78 km² overlap
Vallée de la Biesmelle
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.67 km² overlap
Vallée de la Biesmelle
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.67 km² overlap
Hautes Vallées de la Solre, de la Thure, de la Hante et leurs versants boisés et bocagers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.46 km² overlap
Forest Reserve (Walloon Region)
1.01 km² overlap
Haute Sambre
IUCN IVCertified Nature Reserve (Walloon Region)
0.60 km² overlap
rnr de pantegnies
IUCN IVLand acquired by a regional conservatory of natural areas
0.37 km² overlap
Pantegnies
IUCN IVRegional Nature Reserve
0.37 km² overlap
State Nature Reserve (Walloon Region)
0.34 km² overlap
Landelies
IUCN VIForest Reserve (Walloon Region)
0.23 km² overlap
Vallée de la Thure
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Vallée de la Thure
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.16 km² overlap
Bois de Vieux Sart et de Montbliart
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Bois de Vieux Sart et de Montbliart
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 359 distinct species · 388 716 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,5°C
Annual rain
872mm
Moisture idx (CMI)
0,13
Runoff
375mm/an
PET
758mm
AET
591mm
Mean slope
2,0°
Water table
135cm
Forest
5%
Crops
36%
Urban
18%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)