HydroBASINS lev08 watershed · #2080232110
Bassin de Röjdan
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 across 2 countries : Grue, Torsby, Åsnes
Sub-basin area
852,9km²
Upstream area
853,2km²
Discharge
10,74m³/s
Mean elev.
315m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 637.4 km²74.3% of basin
- 165.1 km²19.2% of basin
- 55.3 km²6.4% of basin
30 intersecting protected areas
Nature Reserve
6.41 km² overlap
Rännberg
IUCN IaNatura 2000 SCI
0.87 km² overlap
Rännberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.87 km² overlap
2002124 Rännberg
IUCN IaNature Reserve
0.87 km² overlap
2044378 Reito
IUCN IaNature Reserve
0.84 km² overlap
SK 520-2018
IUCN IVNature conservation agreement
0.60 km² overlap
2046361 Västanvik
IUCN IaNature Reserve
0.53 km² overlap
2040510 Mulldusen
IUCN IaNature Reserve
0.49 km² overlap
2003900 Juhola finngård
IUCN Not AssignedOthers
0.46 km² overlap
21 more protected areassorted by overlap area
Vålberget
IUCN IaNature Reserve
0.34 km² overlap
2044852 Hultberget
IUCN IaNature Reserve
0.27 km² overlap
SK 246-2018
IUCN IaHabitat Protection Area
0.15 km² overlap
Abborrtjärnsberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
2002122 Abborrtjärnsberg
IUCN IVNature Reserve
0.15 km² overlap
Abborrtjärnsberg
IUCN IVNatura 2000 SCI
0.15 km² overlap
SK 434-2005
IUCN IVNature conservation agreement, Swedish Forest Agency
0.14 km² overlap
SK 245-2018
IUCN IaHabitat Protection Area
0.14 km² overlap
2024429 Dundern
IUCN IaNature Reserve
0.12 km² overlap
SK 137-2021
IUCN IaHabitat Protection Area
0.11 km² overlap
SK 299-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.07 km² overlap
SK 345-2002
IUCN IaHabitat Protection Area
0.06 km² overlap
SK 344-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 983-2004
IUCN IVNature conservation agreement, Swedish Forest Agency
0.06 km² overlap
SK 429-2018
IUCN IaHabitat Protection Area
0.06 km² overlap
SK 408-2018
IUCN IaHabitat Protection Area
0.05 km² overlap
SK 343-2017
IUCN IVNature conservation agreement, Swedish Forest Agency
0.05 km² overlap
SK 285-2017
IUCN IaHabitat Protection Area
0.05 km² overlap
Tjärnar vid Jan i myren
IUCN Not AssignedNatura 2000 SCI
0.05 km² overlap
Tjärnar vid Jan i myren
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
SK 133-2000
IUCN IaHabitat Protection Area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 629 distinct species · 81 578 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 Röjdan : 19 espèces reliées par 60 interactions GloBI sur 4 types (connectance 15.9%, 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°
3,7°C
Annual rain
701mm
Moisture idx (CMI)
0,24
Runoff
387mm/an
PET
535mm
AET
444mm
Mean slope
5,7°
Water table
351cm
Forest
93%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)