HydroBASINS lev08 watershed · #2080341210
Bassin de Ельня
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 : Chavusy, Cherykaw, Krasnapolle, Slawharad
Sub-basin area
502,2km²
Upstream area
12 750,4km²
Discharge
79,21m³/s
Mean elev.
157m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Сянна527 km²
- Bassin de Сож129 km²
4 dept-equivalent regions (GADM L2)
- KrasnapolleMogilev · Belarus205.2 km²40.7% of basin
- 169.4 km²33.6% of basin
- 129.6 km²25.7% of basin
- 0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
38 distinct species · 50 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Ельня : 15 espèces reliées par 24 interactions GloBI sur 5 types (connectance 15.7%, filtre Serrano α=0.2). 3 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°
6,0°C
Annual rain
600mm
Moisture idx (CMI)
-0,13
Runoff
171mm/an
PET
691mm
AET
503mm
Mean slope
1,0°
Water table
90cm
Forest
57%
Crops
21%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)