HydroBASINS lev08 watershed · #2080031960
Bassin de Lotorpsån
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 : Finspång, Hallsberg, Norrköping, Söderköping
Sub-basin area
522,9km²
Upstream area
15 124,2km²
Discharge
78,67m³/s
Mean elev.
54m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Storån1251 km²
- Bassin de Kräplingeån768 km²
4 dept-equivalent regions (GADM L2)
- 283.6 km²53.9% of basin
- 233.6 km²44.4% of basin
- 4.0 km²0.8% of basin
- 3.8 km²0.7% of basin
30 intersecting protected areas
2001776 Vrinneviskogen
IUCN IVNature Reserve
2.87 km² overlap
2024049 Ängenäs
IUCN IaNature Reserve
1.62 km² overlap
2060361 Ringstad mosse
IUCN IaNature Reserve
1.46 km² overlap
Vagnsmossen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.30 km² overlap
Vagnsmossen
IUCN Not AssignedNatura 2000 SCI
1.30 km² overlap
2046329 Ormlångenskogen
IUCN IaNature Reserve
0.79 km² overlap
2041969 Händelö
IUCN IVNature Reserve
0.62 km² overlap
2057561 Trollkäringeskogen
IUCN IaNature Reserve
0.61 km² overlap
2014528 Ysundamarken
IUCN IaNature Reserve
0.60 km² overlap
21 more protected areassorted by overlap area
Nature Reserve
0.57 km² overlap
Kvillingeförkastningen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Kvillingeförkastningen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.56 km² overlap
Kvillingeförkastningen
IUCN Not AssignedNatura 2000 SPA
0.56 km² overlap
Kvillingeförkastningen
IUCN Not AssignedNatura 2000 SCI
0.56 km² overlap
2002177 Kvillingeförkastningen
IUCN Not AssignedNature Reserve
0.56 km² overlap
2046410 Loreberg
IUCN IaNature Reserve
0.55 km² overlap
Orrkojgölarnas domänreservat
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.53 km² overlap
Orrkojgölarnas domänreservat
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.53 km² overlap
Orrkojgölarnas domänreservat
IUCN IaNatura 2000 SCI
0.53 km² overlap
Orrkojgölarnas domänreservat
IUCN IaNatura 2000 SPA
0.53 km² overlap
2001740 Ölstadsjön
IUCN IVNature Reserve
0.49 km² overlap
Ölstadsjön
IUCN IVNatura 2000 SCI
0.48 km² overlap
Ölstadsjön
IUCN IVNatura 2000 SPA
0.48 km² overlap
Ölstadsjön
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.48 km² overlap
Ölstadsjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.48 km² overlap
2055884 Näfssjöskogen
IUCN IaNature Reserve
0.31 km² overlap
2026209 Stockgölen
IUCN IVNature Reserve
0.23 km² overlap
2044943 Trangölens barrskog
IUCN IaNature Reserve
0.22 km² overlap
Händelö
IUCN IVNatura 2000 SCI
0.22 km² overlap
Händelö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 986 distinct species · 600 359 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Lotorpsån : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 3 types (connectance 15.7%, filtre Serrano α=0.2). 7 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°
6,5°C
Annual rain
573mm
Moisture idx (CMI)
-0,06
Runoff
162mm/an
PET
607mm
AET
439mm
Mean slope
1,7°
Water table
130cm
Forest
54%
Crops
21%
Urban
10%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)