HydroBASINS lev08 watershed · #2080025320
Bassin de Rævså
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 4 administrative regions : Horsens, Odder, Skanderborg, Århus
Sub-basin area
523,2km²
Upstream area
523,2km²
Discharge
1,01m³/s
Mean elev.
41m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 206.9 km²39.4% of basin
- 193.0 km²36.7% of basin
- 96.5 km²18.4% of basin
- 11.2 km²2.1% of basin
16 intersecting protected areas
Horsens Fjord, havet øst for og Endelave
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.65 km² overlap
Horsens Fjord and Endelave
IUCN IaWetland of International Importance (Ramsar Site)
27.11 km² overlap
Horsens Fjord og Endelave
IUCN Not ReportedSpecial Protection Area (Birds Directive)
26.31 km² overlap
Horsens Fjord, sea east of and Endelave
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
26.23 km² overlap
Horsens Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
11.37 km² overlap
Odder Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
9.12 km² overlap
Giber Å, Enemærket og Skåde Havbakker
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.20 km² overlap
Horsens Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
4.26 km² overlap
Kysing Fjord
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.72 km² overlap
7 more protected areassorted by overlap area
Aarhus Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
3.10 km² overlap
Protected by conservation order, excl. Church surroundings
2.39 km² overlap
Aarhus Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
1.52 km² overlap
Odder Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
1.39 km² overlap
Protected by conservation order, excl. Church surroundings
1.21 km² overlap
Skanderborg Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.46 km² overlap
Skanderborg Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 387 distinct species · 918 509 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Rævså : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 22.8%, filtre Serrano α=0.2). 9 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°
7,6°C
Annual rain
642mm
Moisture idx (CMI)
0,14
Runoff
472mm/an
PET
549mm
AET
443mm
Mean slope
1,5°
Water table
89cm
Forest
8%
Crops
62%
Urban
10%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)