HydroBASINS lev08 watershed · #2080277220
Bassin de Сива
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 : Bol'shesosnovskiy rayon, Chastinskiy rayon, Sharkanskiy rayon, Votkinsk, Votkinskiy rayon
Sub-basin area
1 336,2km²
Upstream area
3 081km²
Discharge
23,88m³/s
Mean elev.
151m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чёрная573 km²
- Bassin de Сива179 km²
5 dept-equivalent regions (GADM L2)
- 629.1 km²46.8% of basin
- 474.7 km²35.3% of basin
- 178.3 km²13.3% of basin
- 60.3 km²4.5% of basin
- 0.4 km²0.0% of basin
1 intersecting protected areas
Petropavlovskij sosnyak
IUCN IVNature Reserve
0.19 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
371 distinct species · 2 920 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Сива : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 3 types (connectance 24.2%, filtre Serrano α=0.2). 6 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°
2,3°C
Annual rain
582mm
Moisture idx (CMI)
-0,08
Runoff
255mm/an
PET
633mm
AET
448mm
Mean slope
2,4°
Water table
101cm
Forest
49%
Crops
48%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)