HydroBASINS lev08 watershed · #2080319020
Bassin de Вашана
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 : Aleksinskiy rayon, Leninskiy rayon, Tarusskiy rayon, Yasnogorskiy rayon, Zaokskiy rayon
Sub-basin area
616,1km²
Upstream area
616,4km²
Discharge
3,34m³/s
Mean elev.
222m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Aleksinskiy rayonTula · Russia222.7 km²36.0% of basin
- Yasnogorskiy rayonTula · Russia212.5 km²34.3% of basin
- Zaokskiy rayonTula · Russia138.3 km²22.3% of basin
- Leninskiy rayonTula · Russia44.6 km²7.2% of basin
- 0.7 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
797 distinct species · 3 737 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Вашана : 14 espèces reliées par 47 interactions GloBI sur 3 types (connectance 17.0%, filtre Serrano α=0.2). 10 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°
4,7°C
Annual rain
641mm
Moisture idx (CMI)
-0,03
Runoff
172mm/an
PET
664mm
AET
496mm
Mean slope
1,9°
Water table
194cm
Forest
15%
Crops
56%
Urban
1%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)