HydroBASINS lev08 watershed · #2080377440
Bassin de Obrzyca
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 : Leszno, Międzyrzecz, Nowa Sól, Wolsztyn, Wschowa +2
Sub-basin area
978,1km²
Upstream area
978,2km²
Discharge
4,21m³/s
Mean elev.
77m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 294.4 km²30.0% of basin
- 246.1 km²25.1% of basin
- 190.9 km²19.4% of basin
- 135.1 km²13.8% of basin
- 68.9 km²7.0% of basin
- 25.4 km²2.6% of basin
- Wolsztyn21.1 km²2.1% of basin
20 intersecting protected areas
Rynny Obrzycko-Obrzańskie
IUCN Not AssignedProtected Landscape Area
170.86 km² overlap
Pojezierze Sławskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
158.39 km² overlap
Pojezierze Sławsko-Przemęckie
IUCN Not AssignedProtected Landscape Area
101.66 km² overlap
Dolina Leniwej Obry
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
50.62 km² overlap
Przemęcko-Wschowski i kompleks leśny Włoszakowice
IUCN Not AssignedProtected Landscape Area
26.09 km² overlap
Pojezierze Sławskie, Pradolina Obry i Rynna Zbąszyńska
IUCN Not AssignedProtected Landscape Area
20.23 km² overlap
Dolina Środkowej Odry
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.98 km² overlap
Kargowskie Zakola Odry
IUCN Not ReportedSite of Community Importance (Habitats Directive)
4.98 km² overlap
Rynna Paklicy i Ołoboku
IUCN Not AssignedProtected Landscape Area
3.39 km² overlap
11 more protected areassorted by overlap area
Bory Babimojskie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.98 km² overlap
Nowosolska Dolina Odry
IUCN Not AssignedProtected Landscape Area
1.84 km² overlap
Kręcki Łęg
IUCN IVNature Reserve
0.67 km² overlap
Landscape Park
0.66 km² overlap
Radowice
IUCN IVNature Reserve
0.51 km² overlap
Laski
IUCN IVNature Reserve
0.42 km² overlap
Żurawie Bagno Sławskie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.42 km² overlap
Czarna Droga
IUCN IVNature Reserve
0.22 km² overlap
Mesze
IUCN IVNature Reserve
0.20 km² overlap
Jezioro Święte
IUCN IVNature Reserve
0.19 km² overlap
Uroczysko Grodziszcze
IUCN IVNature Reserve
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 508 distinct species · 15 661 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Obrzyca : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 156 interactions GloBI sur 5 types (connectance 23.4%, filtre Serrano α=0.2). 21 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°
8,8°C
Annual rain
549mm
Moisture idx (CMI)
-0,26
Runoff
136mm/an
PET
742mm
AET
467mm
Mean slope
1,1°
Water table
157cm
Forest
34%
Crops
44%
Urban
2%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)