HydroBASINS lev08 watershed · #2080302020
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 : Mamadyshskiy rayon, Nizhnekamskiy, Nizhnekamskiy rayon, Yelabuzhskiy rayon, Zainskiy rayon
Sub-basin area
684,3km²
Upstream area
5 080,5km²
Discharge
26,13m³/s
Mean elev.
112m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Зыча628 km²
- Bassin de Бугульдинка62 km²
5 dept-equivalent regions (GADM L2)
- 540.9 km²78.7% of basin
- 140.4 km²20.4% of basin
- 3.4 km²0.5% of basin
- 2.4 km²0.3% of basin
- 0.3 km²0.0% of basin
1 intersecting protected areas
Borkovskaya dacha
IUCN IIINatural Monument
0.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 075 distinct species · 4 415 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 Зай : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 13.2%, 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°
3,5°C
Annual rain
557mm
Moisture idx (CMI)
-0,17
Runoff
195mm/an
PET
673mm
AET
459mm
Mean slope
1,6°
Water table
103cm
Forest
19%
Crops
52%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)