HydroBASINS lev08 watershed · #2080310520
Bassin de Пьяна
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 : Bol'sheboldinskiy rayon, Bol'sheignatovskiy rayon, Krasnooktyabr'skiy rayon, Sechenovskiy rayon
Sub-basin area
808,4km²
Upstream area
808,4km²
Discharge
3,57m³/s
Mean elev.
186m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 378.5 km²46.6% of basin
- 197.2 km²24.3% of basin
- 136.2 km²16.8% of basin
- 100.2 km²12.3% of basin
1 intersecting protected areas
Dubrava u sela Torgovoe Talyzino
IUCN IIINatural Monument
0.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
754 distinct species · 1 666 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 Пьяна : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 135 interactions GloBI sur 5 types (connectance 18.2%, filtre Serrano α=0.2). 15 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°
3,8°C
Annual rain
548mm
Moisture idx (CMI)
-0,16
Runoff
139mm/an
PET
652mm
AET
457mm
Mean slope
1,6°
Water table
171cm
Forest
4%
Crops
66%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)