HydroBASINS lev08 watershed · #2080368670
Bassin de Алай
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 4 administrative regions : Baltayskiy rayon, Bazarno-Karabulakskiy rayon, Pavlovskiy rayon, Vol'skiy rayon
Sub-basin area
1 666,8km²
Upstream area
1 666,9km²
Discharge
9,65m³/s
Mean elev.
191m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 996.6 km²59.6% of basin
- 559.1 km²33.4% of basin
- Pavlovskiy rayonUl'yanovsk · Russia59.4 km²3.5% of basin
- 58.4 km²3.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
888 distinct species · 1 307 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Алай : 9 espèces reliées par 25 interactions GloBI sur 5 types (connectance 20.8%, 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°
5,1°C
Annual rain
573mm
Moisture idx (CMI)
-0,24
Runoff
182mm/an
PET
756mm
AET
473mm
Mean slope
2,7°
Water table
231cm
Forest
14%
Crops
60%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)