HydroBASINS lev08 watershed · #2080372790
Bassin de Малый Иргиз
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 : Dukhovnitskiy rayon, Ivanteevskiy rayon, Pugachev, Pugachevskiy rayon
Sub-basin area
1 100km²
Upstream area
2 303,9km²
Discharge
6,61m³/s
Mean elev.
70m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чернава612 km²
- Bassin de Малый Иргиз592 km²
4 dept-equivalent regions (GADM L2)
- 688.9 km²62.4% of basin
- 255.9 km²23.2% of basin
- 153.4 km²13.9% of basin
- 6.1 km²0.6% of basin
1 intersecting protected areas
Urochishhe Orehovo
IUCN IVSpecially Protected Natural Landscape
7.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 93 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Малый Иргиз : 15 espèces reliées par 28 interactions GloBI sur 5 types (connectance 14.7%, filtre Serrano α=0.2). 5 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°
5,3°C
Annual rain
463mm
Moisture idx (CMI)
-0,40
Runoff
90mm/an
PET
778mm
AET
396mm
Mean slope
0,9°
Water table
227cm
Forest
0%
Crops
72%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)