HydroBASINS lev08 watershed · #2080296290
Bassin de Умяк
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 6 administrative regions : Grakhovskiy rayon, Kiznerskiy rayon, Kukmorskiy rayon, Mamadyshskiy rayon, Mozhginskiy rayon +1
Sub-basin area
1 227,7km²
Upstream area
1 227,8km²
Discharge
8,4m³/s
Mean elev.
141m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 551.6 km²44.7% of basin
- 400.9 km²32.5% of basin
- 251.3 km²20.4% of basin
- 15.8 km²1.3% of basin
- 11.3 km²0.9% of basin
- 2.6 km²0.2% of basin
1 intersecting protected areas
Rodnik "CHernyj klyuch"
IUCN IIINatural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
102 distinct species · 208 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Умяк : 22 espèces reliées par 37 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 3 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°
3,1°C
Annual rain
572mm
Moisture idx (CMI)
-0,13
Runoff
216mm/an
PET
654mm
AET
457mm
Mean slope
1,7°
Water table
113cm
Forest
27%
Crops
64%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)