HydroBASINS lev08 watershed · #2080241450
Bassin de Kolbäcksån
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 8 administrative regions : Fagersta, Hallstahammar, Kungsör, Köping, Norberg +3
Sub-basin area
711,8km²
Upstream area
3 328,1km²
Discharge
29,78m³/s
Mean elev.
72m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Kolbäcksån906 km²
- Bassin de Norbergsån309 km²
8 dept-equivalent regions (GADM L2)
- 291.8 km²40.8% of basin
- 178.1 km²24.9% of basin
- 102.9 km²14.4% of basin
- 58.2 km²8.1% of basin
- 45.3 km²6.3% of basin
- 38.9 km²5.4% of basin
- 0.4 km²0.1% of basin
- 0.1 km²0.0% of basin
30 intersecting protected areas
2043406 Hälleskogsbrännan
IUCN IVNature Reserve
36.62 km² overlap
2001346 Strömsholm
IUCN VNature Reserve
22.56 km² overlap
Strömsholm
IUCN VNatura 2000 SPA
22.56 km² overlap
Strömsholm
IUCN VNatura 2000 SCI
22.56 km² overlap
Strömsholm
IUCN Not ReportedSpecial Protection Area (Birds Directive)
22.56 km² overlap
Strömsholm
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.56 km² overlap
Nature Reserve
5.32 km² overlap
Natura 2000 SCI
5.31 km² overlap
Rövallsmossen och Stingsmossen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.31 km² overlap
21 more protected areassorted by overlap area
Öjesjöbrännan
IUCN IVNature conservation agreement
4.85 km² overlap
2014074 Ulvsbomuren
IUCN IaNature Reserve
4.01 km² overlap
2001292 Fermansbo urskog
IUCN IaNature Reserve
3.83 km² overlap
2046697 Ramnässkogen
IUCN IaNature Reserve
2.66 km² overlap
2002966 Stora Flyten
IUCN IbNature Reserve
2.45 km² overlap
Stora Flyten och Stormossen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.40 km² overlap
Stora Flyten och Stormossen
IUCN IbNatura 2000 SPA
2.40 km² overlap
Stora Flyten och Stormossen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.40 km² overlap
Stora Flyten och Stormossen
IUCN IbNatura 2000 SCI
2.40 km² overlap
Fermansbo urskog
IUCN IaNatura 2000 SCI
2.40 km² overlap
Fermansbo urskog
IUCN IaNatura 2000 SPA
2.40 km² overlap
Fermansbo urskog
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.40 km² overlap
Fermansbo urskog
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.40 km² overlap
Gnien
IUCN IVNatura 2000 SPA
2.37 km² overlap
Gnien
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.37 km² overlap
2001297 Gnien
IUCN IVNature Reserve
2.37 km² overlap
2001295 Jan-Olsskogen
IUCN Not AssignedNature Reserve
1.80 km² overlap
2044808 Naddennäset
IUCN IVNature Reserve
1.22 km² overlap
2053101 Valstasjöns naturreservat
IUCN Not AssignedNature Reserve
0.75 km² overlap
2002925 Djupmossen
IUCN IaNature Reserve
0.72 km² overlap
Öjesjöbrännan
IUCN IVNature conservation agreement
0.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 853 distinct species · 652 551 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Kolbäcksån : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 4 types (connectance 12.3%, 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°
5,6°C
Annual rain
624mm
Moisture idx (CMI)
0,04
Runoff
228mm/an
PET
598mm
AET
446mm
Mean slope
1,5°
Water table
135cm
Forest
70%
Crops
11%
Urban
2%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)