HydroBASINS lev08 watershed · #2080451930
Bassin de Blies
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 9 administrative regions across 2 countries : Kaiserslautern, Kusel, Moselle, Neunkirchen, Regionalverband Saarbrücken +4
Sub-basin area
738,3km²
Upstream area
1 863,4km²
Discharge
20,95m³/s
Mean elev.
317m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Schwarzbach609 km²
- Bassin de Hengstbach516 km²
9 dept-equivalent regions (GADM L2)
- 305.2 km²41.2% of basin
- 192.5 km²26.0% of basin
- 139.5 km²18.8% of basin
- 35.4 km²4.8% of basin
- Zweibrücken19.3 km²2.6% of basin
- 18.5 km²2.5% of basin
- Kusel16.0 km²2.2% of basin
- 10.6 km²1.4% of basin
1 moreFull L2 list
- Kaiserslautern3.6 km² · 0.5%
11 communes (GADM L5)Available for FRA, RWA
- Bliesbruck9.72 km²89% commune
- Obergailbach8.89 km²99% commune
- Sarreguemines5.04 km²17% commune
- Blies-Ébersing4.43 km²83% commune
- Blies-Guersviller3.61 km²100% commune
- Frauenberg2.68 km²97% commune
- Gros-Réderching0.62 km²4% commune
- Wœlfling-lès-Sarreguemines0.21 km²3% commune
- Rimling0.13 km²1% commune
- Erching0.07 km²1% commune
- Sarreinsming0.03 km²0% commune
30 intersecting protected areas
Biosphäre Bliesgau
IUCN Not Assignedbiosphere reserve
253.67 km² overlap
Biosphäre Bliesgau, Entwicklungszone
IUCN Not Assignedbiosphere reserve - transition area
185.19 km² overlap
Biosphäre Bliesgau, Pflegezone
IUCN Not Assignedbiosphere reserve - buffer zone
58.14 km² overlap
Landscape Protection Area
21.24 km² overlap
Landscape Protection Area
20.23 km² overlap
Landscape Protection Area
18.64 km² overlap
Muschelkalkgebiet bei Gersheim und Blieskastel
IUCN Not ReportedSite of Community Importance (Habitats Directive)
16.40 km² overlap
Muschelkalkgebiet bei Gersheim und Blieskastel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.40 km² overlap
Nature Reserve
14.42 km² overlap
21 more protected areassorted by overlap area
Wald zwischen L119 im Norden, der Landesgrenze und Kirrberg im [Sued]Osten sowie Homburg im Westen
IUCN VLandscape Protection Area
14.18 km² overlap
Landscape Protection Area
11.88 km² overlap
Nature Reserve
10.42 km² overlap
Limbacher u. Spieser Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.38 km² overlap
Limbacher u. Spieser Wald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.38 km² overlap
Biosphäre Bliesgau, Kernzone
IUCN Not Assignedbiosphere reserve - core area
10.34 km² overlap
Landscape Protection Area
9.71 km² overlap
Landscape Protection Area
9.10 km² overlap
Vosges Du Nord
IUCN VRegional Nature Park
9.04 km² overlap
Höcherberg–Westrich
IUCN VLandscape Protection Area
8.93 km² overlap
Ottweiler - Mainzweiler
IUCN VLandscape Protection Area
7.78 km² overlap
Landscape Protection Area
7.66 km² overlap
Landscape Protection Area
6.61 km² overlap
Landscape Protection Area
5.69 km² overlap
Landscape Protection Area
5.68 km² overlap
Nature Reserve
5.23 km² overlap
Landscape Protection Area
4.89 km² overlap
Nature Reserve
4.67 km² overlap
Ostertal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.56 km² overlap
Ostertal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.56 km² overlap
Landscape Protection Area
4.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 720 distinct species · 187 710 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Blies : 19 espèces reliées par 107 interactions GloBI sur 6 types (connectance 20.3%, filtre Serrano α=0.2). 14 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°
8,8°C
Annual rain
752mm
Moisture idx (CMI)
-0,02
Runoff
334mm/an
PET
768mm
AET
576mm
Mean slope
5,4°
Water table
316cm
Forest
43%
Crops
17%
Urban
24%
Protected
43%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)