HydroBASINS lev08 watershed · #2080331950
Bassin de Остёр
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 6 administrative regions across 2 countries : Khislavichskiy rayon, Klimavichy, Pochinkovskiy rayon, Roslavl', Roslavl'skiy rayon +1
Sub-basin area
615,9km²
Upstream area
2 483,9km²
Discharge
15,78m³/s
Mean elev.
201m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Остёр736 km²
- Bassin de Стометь561 km²
6 dept-equivalent regions (GADM L2)
- Shumyachskiy rayonSmolensk · Russia427.6 km²69.1% of basin
- Roslavl'skiy rayonSmolensk · Russia126.6 km²20.5% of basin
- Khislavichskiy rayonSmolensk · Russia31.5 km²5.1% of basin
- Pochinkovskiy rayonSmolensk · Russia31.4 km²5.1% of basin
- 1.4 km²0.2% of basin
- KlimavichyMogilev · Belarus0.1 km²0.0% of basin
1 intersecting protected areas
SHumyachskij
IUCN IVState Natural Zakaznik
67.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
190 distinct species · 246 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Остёр : 14 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 4 types (connectance 18.6%, filtre Serrano α=0.2). 7 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°
5,3°C
Annual rain
619mm
Moisture idx (CMI)
-0,07
Runoff
194mm/an
PET
664mm
AET
497mm
Mean slope
1,4°
Water table
156cm
Forest
30%
Crops
53%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)