HydroBASINS lev08 watershed · #2080394240
Bassin de Volme
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 : Dortmund, Ennepe-Ruhr-Kreis, Hagen
Sub-basin area
11,8km²
Upstream area
3 429,4km²
Discharge
44,45m³/s
Mean elev.
150m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lenne1351 km²
- Bassin de Ruhr555 km²
3 dept-equivalent regions (GADM L2)
- Hagen6.5 km²55.1% of basin
- 2.8 km²23.9% of basin
- Dortmund2.5 km²21.0% of basin
15 intersecting protected areas
Landscape Protection Area
1.47 km² overlap
Landscape Protection Area
1.46 km² overlap
NSG Hohensyburg - Klusenberg
IUCN IVNature Reserve
0.84 km² overlap
LSG-Auf dem Boehfelde
IUCN VLandscape Protection Area
0.72 km² overlap
LSG Syburg
IUCN VLandscape Protection Area
0.70 km² overlap
NSG Fürstenbergholz
IUCN IVNature Reserve
0.61 km² overlap
Landscape Protection Area
0.46 km² overlap
LSG-Hilgenland
IUCN VLandscape Protection Area
0.39 km² overlap
LSG-Herdecker Bachtal
IUCN VLandscape Protection Area
0.29 km² overlap
6 more protected areassorted by overlap area
NSG Uhlenbruch
IUCN IVNature Reserve
0.17 km² overlap
Landscape Protection Area
0.06 km² overlap
Landscape Protection Area
0.02 km² overlap
NSG Wannebachtal - Buchholz
IUCN IVNature Reserve
0.01 km² overlap
LSG-Im Siepen
IUCN VLandscape Protection Area
0.00 km² overlap
LSG-Lennehofsweide
IUCN VLandscape Protection Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 611 distinct species · 12 938 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Volme : 35 espèces reliées par 102 interactions GloBI sur 5 types (connectance 11.8%, 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°
9,2°C
Annual rain
859mm
Moisture idx (CMI)
0,17
Runoff
341mm/an
PET
715mm
AET
578mm
Mean slope
5,2°
Water table
339cm
Forest
44%
Crops
2%
Urban
80%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)