HydroBASINS lev08 watershed · #3080258480
Bassin de Лена
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 : Kobyayskiy rayon
Sub-basin area
857,8km²
Upstream area
2 159 239,8km²
Discharge
14 444,08m³/s
Mean elev.
109m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Лена270 km²
- Bassin de Вилюй215 km²
1 dept-equivalent regions (GADM L2)
- 863.3 km²100.0% of basin
2 intersecting protected areas
Kitchan
IUCN VIResource Reserve
468.96 km² overlap
Ust`-Vilyujskij
IUCN IINatural Park
256.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
109 distinct species · 121 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 Лена : 13 espèces reliées par 18 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 6 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°
-11,1°C
Annual rain
270mm
Moisture idx (CMI)
-0,45
Runoff
118mm/an
PET
490mm
AET
251mm
Mean slope
3,7°
Water table
74cm
Forest
50%
Crops
0%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)