HydroBASINS lev08 watershed · #2080432050
Bassin de l'Oise
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 4 administrative regions across 2 countries : Aisne, Ardennes, Hainaut, Nord
Sub-basin area
409,6km²
Upstream area
409,7km²
Discharge
3,99m³/s
Mean elev.
250m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 206.1 km²50.2% of basin
- 100.7 km²24.5% of basin
- 79.0 km²19.2% of basin
- 25.1 km²6.1% of basin
37 communes (GADM L5)Available for FRA, RWA
- Saint-Michel41.26 km²97% commune
- Signy-le-Petit37.48 km²95% commune
- Hirson33.81 km²100% commune
- Anor21.37 km²96% commune
- Mondrepuis20.68 km²100% commune
- Watigny20.33 km²100% commune
- Neuville-lez-Beaulieu19.19 km²54% commune
- Any-Martin-Rieux16.42 km²89% commune
- La Neuville-aux-Joûtes13.01 km²100% commune
- Wimy11.78 km²99% commune
- Luzoir10.83 km²100% commune
- Tarzy8.32 km²81% commune
- Regniowez7.68 km²42% commune
- Neuve-Maison7.42 km²87% commune
- Brognon6.91 km²100% commune
- Fligny6.59 km²100% commune
- Clairfontaine6.55 km²46% commune
- Gergny6.45 km²100% commune
- Ohis5.43 km²82% commune
- Étréaupont5.23 km²29% commune
- Sommeron4.56 km²100% commune
- La Capelle4.28 km²35% commune
- Froidestrées3.96 km²87% commune
- Fourmies3.37 km²15% commune
- Effry2.68 km²100% commune
- Martigny1.29 km²8% commune
- Leuze0.98 km²10% commune
- Auge0.92 km²20% commune
- Buire0.85 km²23% commune
- La Flamengrie0.65 km²2% commune
- Auvillers-les-Forges0.63 km²8% commune
- Ohain0.34 km²3% commune
- Bucilly0.31 km²2% commune
- Lerzy0.22 km²2% commune
- Éparcy0.09 km²1% commune
- Sorbais0.01 km²0% commune
- Logny-lès-Aubenton0.01 km²0% commune
23 intersecting protected areas
Ardennes
IUCN VRegional Nature Park
101.02 km² overlap
Forêts de Thiérache : Hirson et Saint-Michel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
73.80 km² overlap
Plateau ardennais
IUCN Not ReportedSpecial Protection Area (Birds Directive)
43.59 km² overlap
Avesnois
IUCN VRegional Nature Park
24.93 km² overlap
Massif forestier d'Hirson
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.14 km² overlap
National park - core area
9.17 km² overlap
Vallées de l'Oise et de la Wartoise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.82 km² overlap
Vallées de l'Oise et de la Wartoise
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.82 km² overlap
Massifs forestiers entre Momignies et Chimay
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.21 km² overlap
14 more protected areassorted by overlap area
Massifs forestiers entre Momignies et Chimay
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.21 km² overlap
Forêt, bocage, étangs de Thiérache
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.73 km² overlap
Special Areas of Conservation (Habitats Directive)
1.08 km² overlap
Artoise (De L\')
IUCN IaForest Integral Biological Reserve
0.75 km² overlap
etang de la galoperie
IUCN IVLand acquired by a regional conservatory of natural areas
0.53 km² overlap
Regional Nature Reserve
0.38 km² overlap
Land acquired by a regional conservatory of natural areas
0.30 km² overlap
Bois de Bourlers et de Baileux
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.25 km² overlap
Bois de Bourlers et de Baileux
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.25 km² overlap
Land acquired by a regional conservatory of natural areas
0.17 km² overlap
Land acquired by a regional conservatory of natural areas
0.10 km² overlap
petit taillis et pre patou
IUCN IVLand acquired by a regional conservatory of natural areas
0.08 km² overlap
Marais De La Louvière
IUCN IVBiotope Protection Order
0.05 km² overlap
Rièzes du plateau de Rocroi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 921 distinct species · 121 752 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 l'Oise : 27 espèces reliées par 103 interactions GloBI sur 6 types (connectance 13.9%, filtre Serrano α=0.2). 12 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°
9,1°C
Annual rain
928mm
Moisture idx (CMI)
0,18
Runoff
315mm/an
PET
758mm
AET
602mm
Mean slope
2,3°
Water table
153cm
Forest
31%
Crops
15%
Urban
2%
Protected
31%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)