HydroBASINS lev08 watershed · #4080081500
Bassin de Аюмкан
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 3 administrative regions : Ayano-Mayskiy rayon, Tuguro-Chumikanskiy rayon, Zeyskiy rayon
Sub-basin area
2 202,4km²
Upstream area
2 202,4km²
Discharge
20,58m³/s
Mean elev.
1 216m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1844.1 km²83.3% of basin
- Tuguro-Chumikanskiy rayonKhabarovsk · Russia312.5 km²14.1% of basin
- Ayano-Mayskiy rayonKhabarovsk · Russia56.0 km²2.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
282 distinct species · 318 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Аюмкан : 12 espèces reliées par 16 interactions GloBI sur 2 types (connectance 13.3%, 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°
-11,6°C
Annual rain
652mm
Moisture idx (CMI)
0,27
Runoff
285mm/an
PET
468mm
AET
432mm
Mean slope
13,8°
Water table
361cm
Forest
42%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)