HydroBASINS lev08 watershed · #3080397450
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 : Khangalasskiy (Ordzhonikidzkiy), Olekminskiy rayon
Sub-basin area
1 165,3km²
Upstream area
828 654,3km²
Discharge
7 218,02m³/s
Mean elev.
362m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Малыкан1872 km²
- Bassin de Лена574 km²
2 dept-equivalent regions (GADM L2)
- 642.9 km²54.9% of basin
- 529.0 km²45.1% of basin
2 intersecting protected areas
Lena Pillars Nature Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
241.19 km² overlap
Titiriktyah
IUCN IIINatural Monument
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
121 distinct species · 583 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 Лена : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 7 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°
-9,1°C
Annual rain
342mm
Moisture idx (CMI)
-0,35
Runoff
30mm/an
PET
525mm
AET
303mm
Mean slope
5,7°
Water table
143cm
Forest
87%
Crops
0%
Urban
0%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)