HydroBASINS lev08 watershed · #4080132160
Bassin de Онон
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 : Aginskiy rayon, Akshinskiy rayon, Dul'durginskiy rayon, Ononskiy rayon
Sub-basin area
1 766km²
Upstream area
55 769,9km²
Discharge
121,82m³/s
Mean elev.
837m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Онон2095 km²
- Bassin de Иля318 km²
4 dept-equivalent regions (GADM L2)
- 803.3 km²45.3% of basin
- 489.2 km²27.6% of basin
- 473.5 km²26.7% of basin
- 6.2 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
150 distinct species · 230 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 Онон : 7 espèces reliées par 11 interactions GloBI sur 3 types (connectance 20.0%, filtre Serrano α=0.2). 4 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°
-1,0°C
Annual rain
375mm
Moisture idx (CMI)
-0,50
Runoff
95mm/an
PET
748mm
AET
333mm
Mean slope
5,7°
Water table
142cm
Forest
18%
Crops
15%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)