HydroBASINS lev08 watershed · #2080446710
Bassin de l'Eure
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 : Eure
Sub-basin area
146,6km²
Upstream area
5 907,7km²
Discharge
59,65m³/s
Mean elev.
95m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Iton1211 km²
- Bassin de l'Eure1043 km²
30 communes (GADM L5)Available for FRA, RWA
- Louviers27.06 km²100% commune
- Val-de-Reuil17.76 km²66% commune
- Acquigny12.14 km²67% commune
- Le Mesnil-Jourdain10.66 km²100% commune
- Montaure9.37 km²93% commune
- Incarville6.85 km²100% commune
- Tostes6.21 km²53% commune
- Pinterville6.04 km²100% commune
- Léry6.04 km²71% commune
- Quatremare5.95 km²100% commune
- Surville5.82 km²100% commune
- Ailly4.48 km²29% commune
- Le Vaudreuil4.33 km²91% commune
- Heudebouville3.97 km²43% commune
- Surtauville3.31 km²71% commune
- La Haye-le-Comte2.99 km²100% commune
- Crasville2.23 km²94% commune
- Vironvay2.07 km²52% commune
- La Haye-Malherbe2.01 km²20% commune
- Heudreville-sur-Eure1.38 km²10% commune
- Venon1.26 km²24% commune
- Canappeville1.03 km²10% commune
- Saint-Pierre-du-Vauvray0.99 km²22% commune
- Saint-Étienne-du-Vauvray0.91 km²50% commune
- Fontaine-Bellenger0.88 km²16% commune
- Amfreville-sur-Iton0.73 km²13% commune
- Daubeuf-la-Campagne0.28 km²4% commune
- Les Damps0.18 km²4% commune
- Fontaine-Heudebourg0.11 km²3% commune
- Pont-de-l'Arche0.01 km²0% commune
4 intersecting protected areas
Vallée de l'Eure
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.19 km² overlap
Terrasses alluviales de la Seine
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.34 km² overlap
Boucles de la Seine Amont d'Amfreville à Gaillon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.03 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 319 distinct species · 44 236 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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'Eure : 25 espèces reliées par 91 interactions GloBI sur 4 types (connectance 19.6%, filtre Serrano α=0.2). 6 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°
10,4°C
Annual rain
655mm
Moisture idx (CMI)
-0,17
Runoff
466mm/an
PET
791mm
AET
539mm
Mean slope
2,7°
Water table
157cm
Forest
14%
Crops
38%
Urban
23%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)