HydroBASINS lev08 watershed · #3080528830
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 : Ust'-Kutskiy rayon
Sub-basin area
1 271,9km²
Upstream area
56 645,7km²
Discharge
269,82m³/s
Mean elev.
588m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ига1212 km²
- Bassin de Лена261 km²
1 dept-equivalent regions (GADM L2)
- Ust'-Kutskiy rayonIrkutsk · Russia1278.1 km²100.0% of basin
1 intersecting protected areas
Tayurskij
IUCN IVState Natural Zakaznik
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
79 distinct species · 372 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 : 19 espèces reliées par 25 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 5 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°
-4,9°C
Annual rain
400mm
Moisture idx (CMI)
-0,34
Runoff
232mm/an
PET
609mm
AET
348mm
Mean slope
6,9°
Water table
182cm
Forest
100%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)