HydroBASINS lev08 watershed · #2080392760
Bassin de Ruhr
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 11 administrative regions : Bochum, Dortmund, Duisburg, Ennepe-Ruhr-Kreis, Essen +6
Sub-basin area
601,1km²
Upstream area
4 457km²
Discharge
55,21m³/s
Mean elev.
139m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ennepe427 km²
- Bassin de Volme12 km²
11 dept-equivalent regions (GADM L2)
- 217.1 km²36.0% of basin
- Essen116.0 km²19.2% of basin
- Mettmann89.0 km²14.7% of basin
- Bochum75.8 km²12.6% of basin
- Mülheim an der Ruhr68.0 km²11.3% of basin
- Wuppertal11.5 km²1.9% of basin
- Hagen11.5 km²1.9% of basin
- Oberhausen7.0 km²1.2% of basin
3 moreFull L2 list
- Duisburg3.9 km² · 0.6%
- Dortmund3.6 km² · 0.6%
- Recklinghausen0.1 km² · 0.0%
30 intersecting protected areas
Landscape Protection Area
26.04 km² overlap
Landscape Protection Area
23.42 km² overlap
Landscape Protection Area
22.16 km² overlap
Landscape Protection Area
9.76 km² overlap
Landscape Protection Area
6.75 km² overlap
Landscape Protection Area
6.64 km² overlap
LSG-Kaempen-Durchholz
IUCN VLandscape Protection Area
6.51 km² overlap
Landscape Protection Area
6.48 km² overlap
Landscape Protection Area
5.96 km² overlap
21 more protected areassorted by overlap area
Landscape Protection Area
5.94 km² overlap
Landscape Protection Area
5.58 km² overlap
LSG-Hauptfriedhof
IUCN VLandscape Protection Area
5.07 km² overlap
LSG-Niederwenigern
IUCN VLandscape Protection Area
5.06 km² overlap
Landscape Protection Area
5.02 km² overlap
Landscape Protection Area
4.86 km² overlap
Landscape Protection Area
4.68 km² overlap
LSG-Heidhauser Hoehen
IUCN VLandscape Protection Area
4.35 km² overlap
Landscape Protection Area
3.51 km² overlap
Landscape Protection Area
3.46 km² overlap
Landscape Protection Area
3.46 km² overlap
Landscape Protection Area
3.44 km² overlap
Landscape Protection Area
3.37 km² overlap
LSG-Ruhraue - Hattingen
IUCN VLandscape Protection Area
3.10 km² overlap
LSG-Fischlaker Mark
IUCN VLandscape Protection Area
2.96 km² overlap
Landscape Protection Area
2.95 km² overlap
Landscape Protection Area
2.92 km² overlap
Landscape Protection Area
2.83 km² overlap
Landscape Protection Area
2.54 km² overlap
Landscape Protection Area
2.48 km² overlap
Landscape Protection Area
2.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 387 distinct species · 310 296 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Ruhr : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 117 interactions GloBI sur 6 types (connectance 18.6%, filtre Serrano α=0.2). 13 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°
9,5°C
Annual rain
863mm
Moisture idx (CMI)
0,16
Runoff
313mm/an
PET
723mm
AET
585mm
Mean slope
4,1°
Water table
279cm
Forest
40%
Crops
5%
Urban
74%
Protected
53%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)