HydroBASINS lev08 watershed · #2080422720
Bassin de la Sensée
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 2 administrative regions : Nord, Pas-de-Calais
Sub-basin area
44,7km²
Upstream area
863,4km²
Discharge
12,34m³/s
Mean elev.
48m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Crinchon530 km²
- Bassin de la Sensée289 km²
2 dept-equivalent regions (GADM L2)
- 23.4 km²52.1% of basin
- 21.5 km²47.9% of basin
17 communes (GADM L5)Available for FRA, RWA
- Arleux7.81 km²70% commune
- Écourt-Saint-Quentin5.92 km²63% commune
- Lécluse4.95 km²100% commune
- Étaing3.78 km²74% commune
- Tortequesne3.71 km²97% commune
- Hamel3.39 km²100% commune
- Sailly-en-Ostrevent3.01 km²41% commune
- Récourt2.99 km²93% commune
- Estrées2.85 km²49% commune
- Cantin1.80 km²20% commune
- Dury1.76 km²32% commune
- Bellonne1.26 km²69% commune
- Palluel0.76 km²28% commune
- Bugnicourt0.64 km²10% commune
- Noyelles-sous-Bellonne0.12 km²3% commune
- Gouy-sous-Bellonne0.05 km²1% commune
- Vitry-en-Artois0.00 km²0% commune
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 498 distinct species · 19 815 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 la Sensée : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 6 types (connectance 10.8%, 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°
10,0°C
Annual rain
663mm
Moisture idx (CMI)
-0,11
Runoff
418mm/an
PET
748mm
AET
536mm
Mean slope
1,0°
Water table
61cm
Forest
0%
Crops
64%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)