Ontologia

HydroBASINS lev08 watershed · #2080240750

Bassin de Svartån

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 9 administrative regions : Avesta, Enköping, Eskilstuna, Fagersta, Norberg +4

151% lakePfafstetter: 24472050

Sub-basin area

1 683,7km²

Upstream area

14 746,8km²

Discharge

117,22m³/s

Mean elev.

49m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fiskviks kanal2206 km²

▲ Receives from 2 basins

9 dept-equivalent regions (GADM L2)

1 more

30 intersecting protected areas

  • Asköviken-Sörfjärden

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    119.71 km² overlap

  • 2001338 Ängsö

    IUCN IV

    Nature Reserve

    59.49 km² overlap

  • Ängsö

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    59.49 km² overlap

  • Ängsö

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    59.49 km² overlap

  • Ängsö

    IUCN IV

    Natura 2000 SCI

    59.49 km² overlap

  • Ängsö

    IUCN IV

    Natura 2000 SPA

    59.49 km² overlap

  • Ridöarkipelagen

    IUCN V

    Natura 2000 SCI

    53.89 km² overlap

  • Ridöarkipelagen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    53.89 km² overlap

  • Ridöarkipelagen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    53.89 km² overlap

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

11 523 distinct species · 1 651 573 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 651 573 obs · 58 cellules
Obs. / cellule
≥ 275 292
76 082–275 291
24 197–76 081
14 436–24 196
< 14 436

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 25 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Svartån : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 2 types (connectance 17.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
56
Connectance
0.172
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

5,8°C

Annual rain

587mm

Moisture idx (CMI)

-0,01

Runoff

213mm/an

PET

592mm

AET

437mm

Mean slope

1,7°

Water table

114cm

Forest

50%

Crops

31%

Urban

4%

Protected

11%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)