HydroBASINS lev08 watershed · #2080477620
Bassin de l'Arce
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, Haute-Marne
Sub-basin area
169,8km²
Upstream area
2 377,2km²
Discharge
18,55m³/s
Mean elev.
251m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Ource744 km²
- Bassin de la Seine16 km²
2 dept-equivalent regions (GADM L2)
- 169.6 km²99.6% of basin
- 0.7 km²0.4% of basin
27 communes (GADM L5)Available for FRA, RWA
- Vitry-le-Croisé27.18 km²84% commune
- Bar-sur-Seine18.87 km²68% commune
- Bourguignons16.45 km²96% commune
- Ville-sur-Arce15.74 km²94% commune
- Chervey12.01 km²91% commune
- Saint-Usage11.48 km²68% commune
- Fontette11.33 km²60% commune
- Buxières-sur-Arce10.39 km²98% commune
- Éguilly-sous-Bois9.08 km²95% commune
- Courtenot5.73 km²65% commune
- Bertignolles5.58 km²81% commune
- Merrey-sur-Arce5.36 km²67% commune
- Magnant4.84 km²32% commune
- Chacenay4.11 km²53% commune
- Virey-sous-Bar3.62 km²36% commune
- Cunfin3.47 km²10% commune
- Fralignes2.16 km²47% commune
- Champignol-lez-Mondeville1.19 km²3% commune
- Villars-en-Azois0.69 km²4% commune
- Bligny0.53 km²2% commune
- Jully-sur-Sarce0.12 km²0% commune
- Beurey0.12 km²1% commune
- Noë-les-Mallets0.07 km²1% commune
- Viviers-sur-Artaut0.06 km²1% commune
- Chauffour-lès-Bailly0.04 km²0% commune
- Longpré-le-Sec0.03 km²0% commune
- Landreville0.01 km²0% commune
5 intersecting protected areas
Barrois et forêt de Clairvaux
IUCN Not ReportedSpecial Protection Area (Birds Directive)
26.21 km² overlap
Land acquired by a regional conservatory of natural areas
0.13 km² overlap
Pelouses et forêts du Barséquanais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.08 km² overlap
pelouses de saint-usage
IUCN IVLand acquired by a regional conservatory of natural areas
0.06 km² overlap
Forêt D\'Orient
IUCN VRegional Nature Park
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 553 distinct species · 37 020 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 l'Arce : 32 espèces + 6 bulles famille, 82 interactions GloBI documentées sur 4 types (connectance 11.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,9°C
Annual rain
732mm
Moisture idx (CMI)
-0,11
Runoff
241mm/an
PET
821mm
AET
582mm
Mean slope
3,5°
Water table
294cm
Forest
7%
Crops
67%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)