HydroBASINS lev08 watershed · #2080314380
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 5 administrative regions : Chekhovskiy rayon, Pushchino, Serpukhov, Serpukhovskiy rayon, Yasnogorskiy rayon
Sub-basin area
469,8km²
Upstream area
66 396,5km²
Discharge
375,2m³/s
Mean elev.
171m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Нара1884 km²
- Bassin de Скнига464 km²
5 dept-equivalent regions (GADM L2)
- 391.7 km²83.0% of basin
- 33.4 km²7.1% of basin
- 25.9 km²5.5% of basin
- 20.4 km²4.3% of basin
- Yasnogorskiy rayonTula · Russia0.6 km²0.1% of basin
8 intersecting protected areas
Prioksko-Terrasnyi
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
53.45 km² overlap
State Natural Zakaznik
7.05 km² overlap
Natural Monument
0.67 km² overlap
Uchastok Stepnoj
IUCN IIINatural Monument
0.29 km² overlap
Uchastok Lugovoj
IUCN IIINatural Monument
0.22 km² overlap
Uchastok Karstovyj
IUCN IIINatural Monument
0.13 km² overlap
Pushhinskaya usad`ba
IUCN Not ReportedNatural Monument
0.10 km² overlap
Uchastok Ovragi
IUCN IIINatural Monument
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 061 distinct species · 142 477 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 : 19 espèces reliées par 70 interactions GloBI sur 3 types (connectance 19.9%, 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°
4,9°C
Annual rain
645mm
Moisture idx (CMI)
-0,02
Runoff
191mm/an
PET
660mm
AET
492mm
Mean slope
1,6°
Water table
180cm
Forest
61%
Crops
18%
Urban
6%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)