HydroBASINS lev08 watershed · #3080652010
Bassin de Большая Половинная
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 : Irkutskiy rayon, Slyudyanskiy rayon, Water body
Sub-basin area
522,8km²
Upstream area
523km²
Discharge
6,59m³/s
Mean elev.
677m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Slyudyanskiy rayonIrkutsk · Russia410.4 km²78.2% of basin
- Water bodyIrkutsk · Russia106.5 km²20.3% of basin
- Irkutskiy rayonIrkutsk · Russia7.9 km²1.5% of basin
3 intersecting protected areas
Lake Baikal
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
498.40 km² overlap
Belaya vyemka
IUCN IIINatural Monument
0.08 km² overlap
Natural Monument
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
768 distinct species · 1 471 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Большая Половинная : 19 espèces reliées par 36 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 10 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°
-0,7°C
Annual rain
637mm
Moisture idx (CMI)
-0,07
Runoff
397mm/an
PET
685mm
AET
521mm
Mean slope
4,6°
Water table
91cm
Forest
73%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)