HydroBASINS lev08 watershed · #2080284510
Bassin de Helige å
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 4 administrative regions : Alvesta, Tingsryd, Växjö, Älmhult
Sub-basin area
391,3km²
Upstream area
2 400,2km²
Discharge
22,9m³/s
Mean elev.
157m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Hjortsbergaån564 km²
- Bassin de Helige å301 km²
4 dept-equivalent regions (GADM L2)
- 277.5 km²70.6% of basin
- 70.2 km²17.8% of basin
- 39.0 km²9.9% of basin
- 6.5 km²1.7% of basin
30 intersecting protected areas
Åsnen
IUCN IaWetland of International Importance (Ramsar Site)
89.98 km² overlap
2049265 Åsnens nationalpark
IUCN IINational Park
18.71 km² overlap
Västra Åsnen
IUCN IINatura 2000 SPA
16.21 km² overlap
Västra Åsnen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.21 km² overlap
Västra Åsnen
IUCN IINatura 2000 SCI
16.21 km² overlap
Västra Åsnen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.21 km² overlap
Nature Reserve
3.51 km² overlap
Agnäs
IUCN VNatura 2000 SPA
2.58 km² overlap
Agnäs
IUCN VNatura 2000 SCI
2.58 km² overlap
21 more protected areassorted by overlap area
2002368 Agnäs
IUCN VNature Reserve
2.58 km² overlap
Agnäs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.58 km² overlap
Agnäs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.58 km² overlap
2057701 Sydvästra Sirkön
IUCN IVNature Reserve
1.49 km² overlap
2054001 Ringshult
IUCN IVNature Reserve
1.32 km² overlap
Husebymaden
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.31 km² overlap
Husebymaden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.31 km² overlap
Husebymaden
IUCN IVNatura 2000 SCI
1.31 km² overlap
Husebymaden
IUCN IVNatura 2000 SPA
1.31 km² overlap
2002373 Husebymaden
IUCN IVNature Reserve
1.31 km² overlap
2005565 Hunshult
IUCN IaNature Reserve
1.11 km² overlap
Hunshult
IUCN IaNatura 2000 SCI
1.09 km² overlap
Hunshult
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.09 km² overlap
2004829 Skatelövsfjorden
IUCN Not AssignedWildlife and Plant Sanctuary
0.91 km² overlap
2063361 Ålshult
IUCN IVNature Reserve
0.64 km² overlap
Långö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.60 km² overlap
Långö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.60 km² overlap
Långö
IUCN IaNatura 2000 SCI
0.60 km² overlap
Långö
IUCN IaNatura 2000 SPA
0.60 km² overlap
2002353 Långö
IUCN IaNature Reserve
0.60 km² overlap
2002361 Bjurkärr
IUCN IVNature Reserve
0.57 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 903 distinct species · 199 504 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Helige å : 36 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 4 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°
6,7°C
Annual rain
656mm
Moisture idx (CMI)
0,08
Runoff
300mm/an
PET
604mm
AET
457mm
Mean slope
1,3°
Water table
109cm
Forest
67%
Crops
12%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)