HydroBASINS lev08 watershed · #2080349160
Bassin de Wisła
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 7 administrative regions : Bydgoszcz, Bydgoszcz (City), Chełmno, Golub-Dobrzyń, Inowrocław +2
Sub-basin area
1 180,9km²
Upstream area
179 427,5km²
Discharge
1 026,94m³/s
Mean elev.
68m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Drwęca112 km²
- Bassin de Jordan89 km²
7 dept-equivalent regions (GADM L2)
- 591.3 km²49.9% of basin
- 279.9 km²23.6% of basin
- Inowrocław166.5 km²14.0% of basin
- 108.2 km²9.1% of basin
- Chełmno22.8 km²1.9% of basin
- 16.8 km²1.4% of basin
- Golub-Dobrzyń0.3 km²0.0% of basin
21 intersecting protected areas
Wydm Kotliny Toruńsko-Bydgoskiej część wschodnia i zachodnia
IUCN Not AssignedProtected Landscape Area
214.83 km² overlap
Wydmowy na południe od Torunia
IUCN Not AssignedProtected Landscape Area
140.52 km² overlap
Strefy Krawędziowej Kotliny Toruńskiej
IUCN Not AssignedProtected Landscape Area
119.99 km² overlap
Dolina Dolnej Wisły
IUCN Not ReportedSpecial Protection Area (Birds Directive)
51.88 km² overlap
Wydmy Kotliny Toruńskiej
IUCN Not ReportedSite of Community Importance (Habitats Directive)
51.42 km² overlap
Nadwiślański Park Krajobrazowy
IUCN Not AssignedLandscape Park
19.23 km² overlap
Dybowska Dolina Wisły
IUCN Not ReportedSite of Community Importance (Habitats Directive)
13.94 km² overlap
Solecka Dolina Wisły
IUCN Not ReportedSite of Community Importance (Habitats Directive)
7.00 km² overlap
Nieszawska Dolina Wisły
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.49 km² overlap
12 more protected areassorted by overlap area
Doliny Drwęcy
IUCN Not AssignedProtected Landscape Area
0.41 km² overlap
Las Piwnicki
IUCN IVNature Reserve
0.37 km² overlap
Nature Reserve
0.33 km² overlap
Łażyn
IUCN IVNature Reserve
0.27 km² overlap
Linje
IUCN IVNature Reserve
0.13 km² overlap
Forty w Toruniu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.13 km² overlap
Leniec w Chorągiewce
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.12 km² overlap
Torfowisko Linie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
Leniec w Barbarce
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.04 km² overlap
Rzeka Drwęca
IUCN IVNature Reserve
0.02 km² overlap
Dolina Drwęcy
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.02 km² overlap
Tarkowo
IUCN IVNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 752 distinct species · 194 227 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Wisła : 30 espèces reliées par 67 interactions GloBI sur 6 types (connectance 10.6%, filtre Serrano α=0.2). 6 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°
7,9°C
Annual rain
532mm
Moisture idx (CMI)
-0,27
Runoff
132mm/an
PET
733mm
AET
453mm
Mean slope
0,8°
Water table
140cm
Forest
36%
Crops
39%
Urban
9%
Protected
40%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)