HydroBASINS lev08 watershed · #3080510340
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 2 administrative regions : Kirenskiy rayon, Ust'-Kutskiy rayon
Sub-basin area
1 323,1km²
Upstream area
80 975,8km²
Discharge
417,53m³/s
Mean elev.
492m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Лена1735 km²
- Bassin de Таюра497 km²
2 dept-equivalent regions (GADM L2)
- Ust'-Kutskiy rayonIrkutsk · Russia1260.0 km²94.8% of basin
- Kirenskiy rayonIrkutsk · Russia69.8 km²5.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
175 distinct species · 438 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 4 types (connectance 7.9%, 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°
-4,8°C
Annual rain
398mm
Moisture idx (CMI)
-0,34
Runoff
173mm/an
PET
605mm
AET
346mm
Mean slope
5,4°
Water table
114cm
Forest
97%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)