HydroBASINS lev08 watershed · #2080477920
Bassin de la Suize
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 : Haute-Marne
Sub-basin area
256,7km²
Upstream area
256,8km²
Discharge
2,66m³/s
Mean elev.
372m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 257.5 km²100.0% of basin
30 communes (GADM L5)Available for FRA, RWA
- Chaumont36.45 km²66% commune
- Leffonds36.43 km²100% commune
- Marac22.86 km²100% commune
- Bugnières18.80 km²100% commune
- Foulain17.63 km²65% commune
- Villiers-sur-Suize16.30 km²91% commune
- Ormancey15.73 km²95% commune
- Neuilly-sur-Suize14.40 km²100% commune
- Voisines12.64 km²67% commune
- Richebourg12.29 km²57% commune
- Faverolles11.91 km²69% commune
- Mardor6.78 km²95% commune
- Beauchemin6.29 km²52% commune
- Semoutiers-Montsaon4.38 km²16% commune
- Courcelles-en-Montagne3.56 km²23% commune
- Giey-sur-Aujon3.26 km²10% commune
- Arc-en-Barrois3.22 km²6% commune
- Ternat2.45 km²31% commune
- Condes2.17 km²42% commune
- Jonchery1.93 km²7% commune
- Villiers-le-Sec1.89 km²12% commune
- Saint-Ciergues1.84 km²15% commune
- Brethenay1.28 km²15% commune
- Vauxbons1.06 km²9% commune
- Luzy-sur-Marne0.96 km²6% commune
- Perrogney-les-Fontaines0.38 km²3% commune
- Saint-Martin-lès-Langres0.34 km²10% commune
- Verbiesles0.19 km²2% commune
- Saint-Loup-sur-Aujon0.04 km²0% commune
- Marnay-sur-Marne0.02 km²0% commune
6 intersecting protected areas
National Park - Buffer zone/Area of adhesion
150.26 km² overlap
Forêts
IUCN IINational Park - Core Area
17.93 km² overlap
Pelouse des sources de la Suize a Courcelles-en-Montagne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.11 km² overlap
Source De La Suize
IUCN IVBiotope Protection Order
0.27 km² overlap
Land acquired by a regional conservatory of natural areas
0.26 km² overlap
Pelouse de la côte de Chaumont à Brottes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 924 distinct species · 127 847 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Suize : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 4 types (connectance 14.6%, filtre Serrano α=0.2). 7 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°
9,3°C
Annual rain
808mm
Moisture idx (CMI)
0,03
Runoff
330mm/an
PET
781mm
AET
597mm
Mean slope
2,5°
Water table
192cm
Forest
13%
Crops
48%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)