HydroBASINS lev08 watershed · #2080317040
Bassin de Зай
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 5 administrative regions : Al'met'evskiy rayon, Aznakaevskiy rayon, Bugul'ma, Bugul'minskiy rayon, Leninogorskiy rayon
Sub-basin area
734km²
Upstream area
734km²
Discharge
3,73m³/s
Mean elev.
263m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 492.5 km²66.8% of basin
- 235.5 km²31.9% of basin
- 4.3 km²0.6% of basin
- 3.2 km²0.4% of basin
- 1.8 km²0.2% of basin
6 intersecting protected areas
Reka Stepnoj Zaj
IUCN IIINatural Monument
0.95 km² overlap
Adonisovyj les
IUCN IVState Natural Zakaznik
0.61 km² overlap
Karabashskaya gora
IUCN IIINatural Monument
0.50 km² overlap
State Natural Zakaznik
0.47 km² overlap
Novo-Aleksandrovskij sklon
IUCN IVState Natural Zakaznik
0.43 km² overlap
State Natural Zakaznik
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
459 distinct species · 1 066 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Зай : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 6 types (connectance 14.7%, filtre Serrano α=0.2). 11 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°
2,9°C
Annual rain
562mm
Moisture idx (CMI)
-0,19
Runoff
187mm/an
PET
691mm
AET
460mm
Mean slope
2,5°
Water table
115cm
Forest
14%
Crops
42%
Urban
7%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)