HydroBASINS lev08 watershed · #2080376480
Bassin de Czarna Woda
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 5 administrative regions : Grodzisk Wielkopolski, Międzychód, Nowy Tomyśl, Szamotuły, Wolsztyn
Sub-basin area
687,1km²
Upstream area
687,3km²
Discharge
2,66m³/s
Mean elev.
86m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Nowy Tomyśl407.1 km²59.0% of basin
- Grodzisk Wielkopolski142.9 km²20.7% of basin
- Wolsztyn79.7 km²11.5% of basin
- Międzychód52.2 km²7.6% of basin
- Szamotuły8.0 km²1.2% of basin
9 intersecting protected areas
Pojezierze Sławskie, Pradolina Obry i Rynna Zbąszyńska
IUCN Not AssignedProtected Landscape Area
42.08 km² overlap
Puszcza Notecka
IUCN Not ReportedSpecial Protection Area (Birds Directive)
23.10 km² overlap
Landscape Park
21.24 km² overlap
Zamorze Pniewskie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.97 km² overlap
Ostoja Międzychodzko-Sierakowska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.83 km² overlap
Zamorze Pniewskie
IUCN Not AssignedNature Reserve
0.96 km² overlap
Bukowy Ostrów
IUCN IVNature Reserve
0.78 km² overlap
Barłożnia Wolsztyńska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.22 km² overlap
Bagno Chorzemińskie
IUCN IVNature Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 170 distinct species · 6 230 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Czarna Woda : 29 espèces reliées par 88 interactions GloBI sur 6 types (connectance 13.2%, filtre Serrano α=0.2). 8 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°
8,5°C
Annual rain
549mm
Moisture idx (CMI)
-0,25
Runoff
122mm/an
PET
735mm
AET
467mm
Mean slope
0,8°
Water table
119cm
Forest
35%
Crops
48%
Urban
4%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)