HydroBASINS lev08 watershed · #2080230490
Bassin de Dalälven
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 7 administrative regions : Avesta, Heby, Hedemora, Hofors, Norberg +2
Sub-basin area
1 088km²
Upstream area
27 141,2km²
Discharge
340,81m³/s
Mean elev.
108m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dalälven350 km²
- Bassin de Lustån169 km²
7 dept-equivalent regions (GADM L2)
- 613.9 km²56.1% of basin
- 149.2 km²13.6% of basin
- 114.9 km²10.5% of basin
- 78.4 km²7.2% of basin
- 77.4 km²7.1% of basin
- 59.8 km²5.5% of basin
- 0.5 km²0.0% of basin
30 intersecting protected areas
Färnebofjärden
IUCN IaWetland of International Importance (Ramsar Site)
86.47 km² overlap
2000932 Färnebofjärden
IUCN IINational Park
70.72 km² overlap
Färnebofjärden syd
IUCN IINatura 2000 SCI
46.48 km² overlap
Färnebofjärden syd
IUCN IINatura 2000 SPA
46.48 km² overlap
Färnebofjärden syd
IUCN Not ReportedSpecial Protection Area (Birds Directive)
46.48 km² overlap
Färnebofjärden syd
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
46.48 km² overlap
Färnebofjärden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.83 km² overlap
Färnebofjärden
IUCN IINatura 2000 SCI
22.83 km² overlap
Färnebofjärden
IUCN Not ReportedSpecial Protection Area (Birds Directive)
22.83 km² overlap
21 more protected areassorted by overlap area
Färnebofjärden
IUCN IINatura 2000 SPA
22.83 km² overlap
Östa
IUCN IVNatura 2000 SCI
9.59 km² overlap
Östa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.59 km² overlap
2010905 Östa
IUCN IVNature Reserve
9.11 km² overlap
2000713 Ista
IUCN VNature Reserve
5.77 km² overlap
Ista
IUCN VNatura 2000 SPA
5.77 km² overlap
Ista
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.77 km² overlap
Ista
IUCN VNatura 2000 SCI
5.77 km² overlap
Ista
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.77 km² overlap
Bysjöholmarna-Fullsta
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.17 km² overlap
Bysjöholmarna-Fullsta
IUCN IVNatura 2000 SCI
4.17 km² overlap
Kungsgårdsholmarna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.00 km² overlap
Kungsgårdsholmarna
IUCN IaNatura 2000 SCI
3.00 km² overlap
2002095 Bysjöholmarna
IUCN IVNature Reserve
2.98 km² overlap
2001910 Bredmossen
IUCN IaNature Reserve
1.90 km² overlap
Nature Reserve
1.63 km² overlap
Färnebofjärden, nordväst
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.43 km² overlap
Färnebofjärden, nordväst
IUCN IINatura 2000 SCI
1.43 km² overlap
Bredmossen syd
IUCN IaNatura 2000 SPA
1.33 km² overlap
Bredmossen syd
IUCN IaNatura 2000 SCI
1.33 km² overlap
Bredmossen syd
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.33 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 177 distinct species · 340 444 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Dalälven : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 5 types (connectance 15.5%, filtre Serrano α=0.2). 14 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°
5,0°C
Annual rain
623mm
Moisture idx (CMI)
0,06
Runoff
313mm/an
PET
585mm
AET
441mm
Mean slope
2,8°
Water table
223cm
Forest
78%
Crops
1%
Urban
1%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)