HydroBASINS lev08 watershed · #2080464160
Bassin de la Blaise
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 : Haute-Marne, Marne
Sub-basin area
588km²
Upstream area
588km²
Discharge
5,07m³/s
Mean elev.
258m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 565.9 km²96.0% of basin
- 23.8 km²4.0% of basin
80 communes (GADM L5)Available for FRA, RWA
- Colombey-les-Deux-Églises43.23 km²58% commune
- Troisfontaines-la-Ville29.85 km²78% commune
- Wassy21.98 km²63% commune
- Éclaron-Braucourt-Sainte-Livière21.78 km²37% commune
- Humbécourt21.16 km²100% commune
- Marbéville17.64 km²100% commune
- Doulevant-le-Château15.73 km²69% commune
- Sexfontaines15.38 km²75% commune
- Leschères-sur-le-Blaiseron15.36 km²100% commune
- Morancourt14.19 km²100% commune
- Ambonville13.96 km²100% commune
- Lachapelle-en-Blaisy13.70 km²81% commune
- Cirey-sur-Blaise13.69 km²83% commune
- Mathons13.50 km²100% commune
- Juzennecourt12.64 km²97% commune
- Attancourt12.09 km²100% commune
- Charmes-la-Grande11.66 km²100% commune
- Bouzancourt11.52 km²97% commune
- Gillancourt11.45 km²75% commune
- Flammerécourt10.63 km²100% commune
- Maizières10.50 km²92% commune
- Louvemont10.37 km²49% commune
- Lamothe-en-Blaisy9.94 km²100% commune
- Guindrecourt-aux-Ormes9.07 km²100% commune
- Baudrecourt8.62 km²100% commune
- Arnancourt7.64 km²82% commune
- Nomécourt7.55 km²73% commune
- Brachay7.52 km²100% commune
- Dommartin-le-Saint-Père7.23 km²47% commune
- Daillancourt7.10 km²90% commune
- Charmes-en-l'Angle7.02 km²100% commune
- Vaux-sur-Blaise6.83 km²93% commune
- Dommartin-le-Franc6.78 km²70% commune
- Mirbel6.62 km²100% commune
- Eurville-Bienville6.51 km²31% commune
- Fays6.27 km²100% commune
- Saint-Dizier6.16 km²13% commune
- Sommancourt6.02 km²100% commune
- Brousseval6.01 km²100% commune
- Landricourt5.68 km²100% commune
- Magneux5.63 km²100% commune
- Guindrecourt-sur-Blaise5.52 km²100% commune
- Domblain5.30 km²100% commune
- Blaisy5.28 km²100% commune
- Ambrières5.13 km²52% commune
- Sainte-Marie-du-Lac-Nuisement5.08 km²29% commune
- Courcelles-sur-Blaise5.01 km²91% commune
- Ville-en-Blaisois4.99 km²71% commune
- Valleret4.88 km²100% commune
- Hauteville4.20 km²39% commune
- Blécourt3.94 km²53% commune
- Rachecourt-Suzémont3.75 km²100% commune
- Jonchery3.45 km²12% commune
- Ferrière-et-Lafolie3.37 km²43% commune
- Vignory3.11 km²15% commune
- Curmont2.90 km²100% commune
- Chatonrupt-Sommermont2.72 km²16% commune
- Allichamps2.57 km²100% commune
- La Genevroye2.54 km²100% commune
- Ormoy-lès-Sexfontaines2.42 km²41% commune
- Doulevant-le-Petit2.24 km²82% commune
- Autreville-sur-la-Renne1.91 km²5% commune
- Écollemont1.56 km²58% commune
- Larzicourt1.55 km²9% commune
- Laneuville-au-Pont1.52 km²38% commune
- Euffigneix1.38 km²16% commune
- Roches-sur-Marne1.35 km²17% commune
- Montreuil-sur-Blaise1.29 km²100% commune
- Soncourt-sur-Marne1.17 km²9% commune
- Valcourt0.64 km²18% commune
- Arrigny0.59 km²4% commune
- Rouécourt0.44 km²6% commune
- Rouvroy-sur-Marne0.40 km²5% commune
- Joinville0.32 km²2% commune
- Cerisières0.31 km²3% commune
- Bailly-aux-Forges0.22 km²2% commune
- Moëslains0.22 km²15% commune
- Gudmont-Villiers0.12 km²1% commune
- Oudincourt0.12 km²2% commune
- Rachecourt-sur-Marne0.00 km²0% commune
8 intersecting protected areas
Etangs de la Champagne humide
IUCN Not ReportedWetland of International Importance (Ramsar Site)
168.49 km² overlap
Herbages et cultures autour du lac du Der
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.61 km² overlap
Réservoir de la Marne dit du Der-Chantecoq
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.60 km² overlap
Lac du Der
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.02 km² overlap
Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.32 km² overlap
National Hunting and Wildlife Reserve
0.17 km² overlap
Barrois et forêt de Clairvaux
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.09 km² overlap
Land acquired by a regional conservatory of natural areas
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 786 distinct species · 163 378 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Blaise : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 4 types (connectance 17.5%, filtre Serrano α=0.2). 8 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°
9,6°C
Annual rain
724mm
Moisture idx (CMI)
-0,10
Runoff
278mm/an
PET
805mm
AET
577mm
Mean slope
2,7°
Water table
196cm
Forest
18%
Crops
47%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)