HydroBASINS lev08 watershed · #3080389440
Bassin de Буотама
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 3 administrative regions : Aldanskiy rayon, Khangalasskiy (Ordzhonikidzkiy), Olekminskiy rayon
Sub-basin area
2 489,4km²
Upstream area
10 454,7km²
Discharge
31,51m³/s
Mean elev.
365m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Буотама805 km²
- Bassin de Буотама676 km²
3 dept-equivalent regions (GADM L2)
- 2284.9 km²91.3% of basin
- 116.4 km²4.6% of basin
- 102.5 km²4.1% of basin
2 intersecting protected areas
Lena Pillars Nature Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
2413.10 km² overlap
Kyrbykan
IUCN VIResource Reserve
33.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
420 distinct species · 746 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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 Буотама : 8 espèces reliées par 8 interactions GloBI sur 1 type (connectance 17.8%, filtre Serrano α=0.2). 2 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°
-9,7°C
Annual rain
342mm
Moisture idx (CMI)
-0,36
Runoff
78mm/an
PET
532mm
AET
303mm
Mean slope
4,7°
Water table
181cm
Forest
94%
Crops
0%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)