HydroBASINS lev08 watershed · #2080310820
Bassin de Ока
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 : Kolomenskiy rayon, Kolomna, Lukhovitskiy rayon, Ozerskiy rayon
Sub-basin area
199,1km²
Upstream area
73 999,9km²
Discharge
425,95m³/s
Mean elev.
145m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Осётр1501 km²
- Bassin de Ока184 km²
4 dept-equivalent regions (GADM L2)
- 151.2 km²75.6% of basin
- 36.3 km²18.2% of basin
- 9.4 km²4.7% of basin
- 3.2 km²1.6% of basin
1 intersecting protected areas
Karasevskaya lesnaya dacha
IUCN IVState Natural Zakaznik
24.86 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
919 distinct species · 5 152 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Ока : 17 espèces reliées par 75 interactions GloBI sur 4 types (connectance 18.5%, filtre Serrano α=0.2). 12 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°
4,8°C
Annual rain
608mm
Moisture idx (CMI)
-0,09
Runoff
173mm/an
PET
668mm
AET
484mm
Mean slope
1,4°
Water table
133cm
Forest
43%
Crops
37%
Urban
15%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)