HydroBASINS lev08 watershed · #2080348260
Bassin de Сура
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 8 administrative regions : Baryshskiy rayon, Bazarnosyzganskiy rayon, Gorodishchenskiy rayon, Kuznetsk, Kuznetskiy rayon +3
Sub-basin area
2 761,5km²
Upstream area
2 761,5km²
Discharge
7,7m³/s
Mean elev.
269m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- Sosnovoborskiy rayonPenza · Russia1318.7 km²47.6% of basin
- Kuznetskiy rayonPenza · Russia1041.7 km²37.6% of basin
- Gorodishchenskiy rayonPenza · Russia304.3 km²11.0% of basin
- 31.6 km²1.1% of basin
- Baryshskiy rayonUl'yanovsk · Russia28.9 km²1.0% of basin
- Nikol'skiy rayonPenza · Russia23.9 km²0.9% of basin
- Nikolaevskiy rayonUl'yanovsk · Russia19.6 km²0.7% of basin
- Bazarnosyzganskiy rayonUl'yanovsk · Russia4.3 km²0.2% of basin
3 intersecting protected areas
Privolzhskaya lesostep`
IUCN IaState Natural Zapovednik
63.69 km² overlap
Surskie vershiny
IUCN IVState Natural Zakaznik
58.88 km² overlap
Nikol`skoe boloto
IUCN IIINatural Monument
0.49 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 496 distinct species · 17 247 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Сура : 23 espèces reliées par 80 interactions GloBI sur 5 types (connectance 15.2%, filtre Serrano α=0.2). 10 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°
4,2°C
Annual rain
569mm
Moisture idx (CMI)
-0,20
Runoff
104mm/an
PET
711mm
AET
470mm
Mean slope
1,7°
Water table
160cm
Forest
42%
Crops
33%
Urban
2%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)