HydroBASINS lev08 watershed · #2080243700
Bassin de Norsälven
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 : Grums, Karlstad, Kil, Sunne
Sub-basin area
558,5km²
Upstream area
4 112,7km²
Discharge
47,65m³/s
Mean elev.
117m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rottnan953 km²
- Bassin de Kattbäcken120 km²
4 dept-equivalent regions (GADM L2)
- 227.4 km²40.5% of basin
- 187.9 km²33.5% of basin
- 139.0 km²24.8% of basin
- 7.2 km²1.3% of basin
30 intersecting protected areas
SK 520-2018
IUCN IVNature conservation agreement
1.34 km² overlap
2054161 Storhöjden
IUCN Not AssignedNature Reserve
0.93 km² overlap
2010921 Kilsravinerna
IUCN IIINature Reserve
0.44 km² overlap
SK 176-2005
IUCN IVNature conservation agreement, Swedish Forest Agency
0.17 km² overlap
2058041 Bålberget
IUCN IaNature Reserve
0.17 km² overlap
SK 224-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
0.16 km² overlap
2002133 Sånebyklätten
IUCN IIINature Reserve
0.09 km² overlap
SK 5-2018
IUCN IaHabitat Protection Area
0.08 km² overlap
SK 93-2000
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
21 more protected areassorted by overlap area
SK 1033-2004
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 529-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 74-2013
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 1034-2004
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 37-2008
IUCN IaHabitat Protection Area
0.06 km² overlap
SK 49-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.05 km² overlap
SK 400-2018
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 9-2009
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 876-2004
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 200-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.05 km² overlap
SK 380-2008
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 38-2008
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 208-2021
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 153-2018
IUCN IVNature conservation agreement, Swedish Forest Agency
0.04 km² overlap
SK 238-2005
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 317-2008
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 500-2018
IUCN IVNature conservation agreement, Swedish Forest Agency
0.03 km² overlap
SK 155-2023
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 42-2008
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 162-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.03 km² overlap
SK 4-2020
IUCN IVNature conservation agreement, Swedish Forest Agency
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 959 distinct species · 166 230 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Norsälven : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 3 types (connectance 15.1%, filtre Serrano α=0.2). 11 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°
5,3°C
Annual rain
669mm
Moisture idx (CMI)
0,15
Runoff
306mm/an
PET
571mm
AET
448mm
Mean slope
3,2°
Water table
298cm
Forest
60%
Crops
0%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)