HydroBASINS lev08 watershed · #2080184070
Bassin de Långan
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 : Krokom, Åre, Östersund
Sub-basin area
2 147,5km²
Upstream area
2 147,7km²
Discharge
45,34m³/s
Mean elev.
536m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1781.6 km²82.4% of basin
- 291.0 km²13.5% of basin
- 88.6 km²4.1% of basin
30 intersecting protected areas
Oldflån-Ansätten
IUCN Not AssignedNatura 2000 SCI
124.32 km² overlap
Oldflån-Ansätten
IUCN Not ReportedSpecial Protection Area (Birds Directive)
124.32 km² overlap
Oldflån-Ansätten
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
124.32 km² overlap
Oldflån-Ansätten
IUCN Not AssignedNatura 2000 SPA
124.32 km² overlap
2001203 Oldflån-Ansätten
IUCN Not AssignedNature Reserve
108.22 km² overlap
2001200 Svenskådalen
IUCN IbNature Reserve
101.76 km² overlap
Svenskådalen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
101.41 km² overlap
Svenskådalen
IUCN IbNatura 2000 SCI
101.41 km² overlap
Svenskådalen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
101.41 km² overlap
21 more protected areassorted by overlap area
Svenskådalen
IUCN IbNatura 2000 SPA
101.41 km² overlap
Oldflån-Flån
IUCN IaWetland of International Importance (Ramsar Site)
63.83 km² overlap
2052361 Duvviegaejsie
IUCN Not AssignedNature Reserve
15.98 km² overlap
2021145 Storskogen
IUCN IbNature Reserve
5.81 km² overlap
Långan; Nedströms Landösjön
IUCN Not AssignedNatura 2000 SCI
3.46 km² overlap
Långan; Nedströms Landösjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.46 km² overlap
Nature Reserve
2.93 km² overlap
Storholmsjö
IUCN IaNatura 2000 SCI
2.78 km² overlap
Storholmsjö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.78 km² overlap
2000949 Storholmsjö
IUCN IaNature Reserve
2.74 km² overlap
2057481 Flakamyren
IUCN IaNature Reserve
2.45 km² overlap
2046695 Oldklumpen
IUCN IaNature Reserve
2.39 km² overlap
Offerdalsberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.98 km² overlap
Offerdalsberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.98 km² overlap
Offerdalsberg
IUCN IaNatura 2000 SCI
1.98 km² overlap
Offerdalsberg
IUCN IaNatura 2000 SPA
1.98 km² overlap
Flakamyren
IUCN IaNatura 2000 SCI
1.46 km² overlap
Flakamyren
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.46 km² overlap
SK 625-2004
IUCN IVNature conservation agreement, Swedish Forest Agency
0.94 km² overlap
1073650529
IUCN Not ApplicableVoluntary set-aside areas
0.59 km² overlap
1073650198
IUCN Not ApplicableVoluntary set-aside areas
0.54 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 497 distinct species · 138 667 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 Långan : 22 espèces reliées par 40 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 6 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°
1,8°C
Annual rain
757mm
Moisture idx (CMI)
0,39
Runoff
650mm/an
PET
446mm
AET
391mm
Mean slope
5,0°
Water table
253cm
Forest
67%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)