HydroBASINS lev08 watershed · #2080477750
Bassin de la Sarce
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 3 administrative regions : Aube, Côte-d'Or, Yonne
Sub-basin area
187,5km²
Upstream area
187,5km²
Discharge
1,37m³/s
Mean elev.
252m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 157.5 km²83.8% of basin
- 27.5 km²14.6% of basin
- 3.1 km²1.6% of basin
25 communes (GADM L5)Available for FRA, RWA
- Bragelogne-Beauvoir22.69 km²96% commune
- Bagneux-la-Fosse21.70 km²96% commune
- Jully-sur-Sarce18.38 km²60% commune
- Avirey-Lingey17.98 km²100% commune
- Arthonnay16.83 km²64% commune
- Channes14.70 km²100% commune
- Arrelles14.67 km²100% commune
- Villemorien13.68 km²100% commune
- Cruzy-le-Châtel10.31 km²17% commune
- Villiers-sous-Praslin6.92 km²80% commune
- Pargues5.42 km²39% commune
- Balnot-la-Grange4.17 km²21% commune
- Virey-sous-Bar4.08 km²40% commune
- Praslin3.61 km²31% commune
- Bar-sur-Seine3.01 km²11% commune
- Polisot2.92 km²27% commune
- Vertault2.62 km²14% commune
- Polisy2.31 km²21% commune
- Balnot-sur-Laignes0.94 km²9% commune
- Molesme0.43 km²1% commune
- Villon0.33 km²4% commune
- Les Riceys0.18 km²0% commune
- Vougrey0.09 km²2% commune
- Bourguignons0.02 km²0% commune
- Courtenot0.01 km²0% commune
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 323 distinct species · 20 069 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Sarce : 28 espèces + 1 bulle famille, 44 interactions GloBI documentées sur 3 types (connectance 10.8%, filtre Serrano α=0.2). Les 1 bulle regroupe 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°
10,0°C
Annual rain
740mm
Moisture idx (CMI)
-0,10
Runoff
232mm/an
PET
827mm
AET
586mm
Mean slope
3,0°
Water table
255cm
Forest
5%
Crops
58%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)