HydroBASINS lev08 watershed · #2080184590
Bassin de Semlan
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 2 administrative regions : Krokom, Åre
Sub-basin area
394,6km²
Upstream area
6 287,6km²
Discharge
162,07m³/s
Mean elev.
436m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Järpströmmen605 km²
- Bassin de Indalsälven516 km²
2 dept-equivalent regions (GADM L2)
- 342.2 km²86.2% of basin
- 54.9 km²13.8% of basin
22 intersecting protected areas
Fiskhusberget
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.26 km² overlap
Fiskhusberget
IUCN IaNatura 2000 SCI
7.26 km² overlap
2010951 Fiskhusberget
IUCN IaNature Reserve
7.26 km² overlap
2056581 Skåhällbodarna
IUCN IaNature Reserve
4.90 km² overlap
2013337 Sandtjärndalen
IUCN IaNature Reserve
3.78 km² overlap
2041471 Djupsjöbäcken
IUCN IaNature Reserve
0.57 km² overlap
2033190 Hällan
IUCN IaNature Reserve
0.42 km² overlap
2048142 Prästvallen
IUCN IaNature Reserve
0.34 km² overlap
SK 874-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
0.33 km² overlap
13 more protected areassorted by overlap area
2042146 Slåttsved
IUCN IaNature Reserve
0.30 km² overlap
SK 236-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
0.29 km² overlap
2005180 Mattmartjärnen
IUCN Not AssignedWildlife and Plant Sanctuary
0.09 km² overlap
2005178 Indalsälven, holmar vid Mörsil
IUCN Not AssignedWildlife and Plant Sanctuary
0.06 km² overlap
SK 297-1995
IUCN IaHabitat Protection Area
0.06 km² overlap
SK 316-1995
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 282-1996
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 873-2004
IUCN IaHabitat Protection Area
0.04 km² overlap
SK 272-2003
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 104-2007
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 283-1996
IUCN IaHabitat Protection Area
0.03 km² overlap
SK 238-2006
IUCN IVNature conservation agreement, Swedish Forest Agency
0.01 km² overlap
SK 105-2007
IUCN IaHabitat Protection Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 236 distinct species · 45 851 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Semlan : 18 espèces reliées par 106 interactions GloBI sur 6 types (connectance 16.8%, filtre Serrano α=0.2). 18 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°
2,4°C
Annual rain
701mm
Moisture idx (CMI)
0,33
Runoff
574mm/an
PET
465mm
AET
399mm
Mean slope
4,2°
Water table
252cm
Forest
93%
Crops
0%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)