HydroBASINS lev08 watershed · #3080429620
Bassin de Нижняя Тунгуска
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 1 administrative regions : Katangskiy rayon
Sub-basin area
2 560,9km²
Upstream area
37 337,4km²
Discharge
127,01m³/s
Mean elev.
398m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Непа1214 km²
- Bassin de Нижняя Тунгуска45 km²
1 dept-equivalent regions (GADM L2)
- Katangskiy rayonIrkutsk · Russia2575.0 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
396 distinct species · 439 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Нижняя Тунгуска : 25 espèces reliées par 48 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2). 10 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°
-6,4°C
Annual rain
374mm
Moisture idx (CMI)
-0,34
Runoff
108mm/an
PET
566mm
AET
327mm
Mean slope
2,6°
Water table
72cm
Forest
98%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)