HydroBASINS lev08 watershed · #2080466380
Bassin de la Seine
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 : Aube, Marne
Sub-basin area
744,7km²
Upstream area
4 008,6km²
Discharge
29,61m³/s
Mean elev.
118m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Canal de Restitution393 km²
- Bassin de l'Hozain306 km²
2 dept-equivalent regions (GADM L2)
- 711.7 km²95.3% of basin
- 35.2 km²4.7% of basin
94 communes (GADM L5)Available for FRA, RWA
- Saint-Lyé32.53 km²100% commune
- Orvilliers-Saint-Julien24.25 km²99% commune
- Le Pavillon-Sainte-Julie23.24 km²100% commune
- Sainte-Maure21.19 km²100% commune
- Les Grandes-Chapelles20.21 km²93% commune
- Maizières-la-Grande-Paroisse20.21 km²97% commune
- Droupt-Saint-Basle18.17 km²100% commune
- Vallant-Saint-Georges18.15 km²100% commune
- Savières18.14 km²100% commune
- Payns17.41 km²100% commune
- Saint-Mesmin16.49 km²100% commune
- Creney-près-Troyes16.15 km²100% commune
- Châtres15.89 km²100% commune
- Mergey15.20 km²100% commune
- Saint-Just-Sauvage14.80 km²82% commune
- Droupt-Sainte-Marie14.39 km²99% commune
- Rilly-Sainte-Syre14.33 km²100% commune
- Chapelle-Vallon14.26 km²73% commune
- Échemines14.20 km²75% commune
- Saint-Germain14.13 km²100% commune
- Romilly-sur-Seine13.78 km²54% commune
- Laines-aux-Bois13.48 km²81% commune
- Troyes13.45 km²100% commune
- Bouilly13.09 km²82% commune
- Méry-sur-Seine12.72 km²100% commune
- Clesles12.70 km²100% commune
- Villechétif12.39 km²100% commune
- Fontaine-les-Grès12.16 km²100% commune
- Torvilliers11.77 km²99% commune
- Saint-Benoît-sur-Seine11.52 km²100% commune
- La Chapelle-Saint-Luc10.73 km²100% commune
- Saint-Oulph10.71 km²100% commune
- Saint-Pouange10.08 km²100% commune
- Villacerf9.94 km²100% commune
- Barberey-Saint-Sulpice9.75 km²100% commune
- Laubressel9.70 km²59% commune
- Souligny9.65 km²94% commune
- Origny-le-Sec9.63 km²60% commune
- Chauchigny9.58 km²100% commune
- Saint-Léger-près-Troyes8.93 km²100% commune
- Vailly8.62 km²79% commune
- Bouranton8.11 km²100% commune
- Saint-Parres-aux-Tertres7.67 km²63% commune
- Mesgrigny7.58 km²100% commune
- Sainte-Savine7.47 km²100% commune
- La Rivière-de-Corps7.07 km²100% commune
- Rosières-près-Troyes6.65 km²100% commune
- Montgueux6.42 km²55% commune
- Thennelières6.38 km²97% commune
- Mesnil-Sellières5.97 km²67% commune
- Lavau5.90 km²100% commune
- Saint-André-les-Vergers5.66 km²100% commune
- Saint-Julien-les-Villas5.23 km²100% commune
- Macey5.08 km²25% commune
- Charny-le-Bachot4.95 km²35% commune
- Bagneux4.82 km²35% commune
- Villeloup4.71 km²29% commune
- Bréviandes4.56 km²72% commune
- Longueville-sur-Aube4.00 km²35% commune
- Moussey3.80 km²52% commune
- Pont-Sainte-Marie3.63 km²100% commune
- Roncenay3.58 km²93% commune
- Feuges3.38 km²30% commune
- Saint-Flavy3.23 km²18% commune
- Prémierfait3.14 km²21% commune
- Étrelles-sur-Aube3.14 km²30% commune
- Buchères2.27 km²31% commune
- Marcilly-sur-Seine2.03 km²20% commune
- Luyères1.58 km²9% commune
- Villemereuil1.55 km²21% commune
- Dosches1.43 km²7% commune
- Villery1.27 km²36% commune
- Assencières0.99 km²14% commune
- Saint-Jean-de-Bonneval0.87 km²15% commune
- Prugny0.84 km²10% commune
- Saron-sur-Aube0.82 km²5% commune
- Les Noës-près-Troyes0.62 km²100% commune
- Villy-le-Maréchal0.54 km²14% commune
- Javernant0.48 km²8% commune
- Dierrey-Saint-Pierre0.38 km²2% commune
- Ossey-les-Trois-Maisons0.36 km²2% commune
- Rhèges0.34 km²2% commune
- Rouilly-Saint-Loup0.34 km²3% commune
- Ruvigny0.20 km²5% commune
- Courteranges0.08 km²1% commune
- Messon0.04 km²0% commune
- Pars-lès-Romilly0.02 km²0% commune
- Nozay0.01 km²0% commune
- Voué0.01 km²0% commune
- Charmont-sous-Barbuise0.00 km²0% commune
- Sommeval0.00 km²0% commune
- Assenay0.00 km²0% commune
- Prunay-Belleville0.00 km²0% commune
- Lirey0.00 km²0% commune
18 intersecting protected areas
Forêt D\'Orient
IUCN VRegional Nature Park
34.41 km² overlap
Etangs de la Champagne humide
IUCN Not ReportedWetland of International Importance (Ramsar Site)
31.74 km² overlap
Marais de Villechétif
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.32 km² overlap
Prairies, Marais et bois alluviaux de la Bassée
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.05 km² overlap
Forêts et clairières des bas-bois
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.54 km² overlap
Marais De Villechétif
IUCN IVBiotope Protection Order
0.40 km² overlap
marais de villechétif
IUCN IVLand acquired by a regional conservatory of natural areas
0.30 km² overlap
marais de saint germain
IUCN IVLand acquired by a regional conservatory of natural areas
0.26 km² overlap
savart du bas de vau
IUCN IVLand acquired by a regional conservatory of natural areas
0.14 km² overlap
9 more protected areassorted by overlap area
Land acquired by a regional conservatory of natural areas
0.11 km² overlap
ancien aérodrome de romilly
IUCN IVLand acquired by a regional conservatory of natural areas
0.08 km² overlap
pelouse de la butte
IUCN IVLand acquired by a regional conservatory of natural areas
0.07 km² overlap
marais du gué de vailly
IUCN IVLand acquired by a regional conservatory of natural areas
0.06 km² overlap
savart du haut du bas de vau
IUCN IVLand acquired by a regional conservatory of natural areas
0.06 km² overlap
le marais du bouillon
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
carrière \'les sonneries\'
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
mares de saint-oulph
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Land acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 233 distinct species · 307 654 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Seine : 28 espèces reliées par 119 interactions GloBI sur 6 types (connectance 16.9%, filtre Serrano α=0.2). 10 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°
10,3°C
Annual rain
645mm
Moisture idx (CMI)
-0,25
Runoff
215mm/an
PET
854mm
AET
544mm
Mean slope
1,2°
Water table
91cm
Forest
1%
Crops
68%
Urban
10%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)