HydroBASINS lev08 watershed · #2080263900
Bassin de Осень
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 2 administrative regions : Bezhetskiy rayon, Maksatikhinskiy rayon
Sub-basin area
37,9km²
Upstream area
3 196,7km²
Discharge
19,73m³/s
Mean elev.
134m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Мелеча1235 km²
- Bassin de Уйвешь24 km²
2 dept-equivalent regions (GADM L2)
- Maksatikhinskiy rayonTver' · Russia23.3 km²61.2% of basin
- Bezhetskiy rayonTver' · Russia14.8 km²38.8% of basin
1 intersecting protected areas
State Natural Zakaznik
5.39 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 distinct species · 4 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 Осень : 4 espèces reliées par 2 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
3,7°C
Annual rain
589mm
Moisture idx (CMI)
-0,04
Runoff
183mm/an
PET
616mm
AET
465mm
Mean slope
0,4°
Water table
20cm
Forest
76%
Crops
16%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)