HydroBASINS lev08 watershed · #2080264730
Bassin de Большая Какша
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 : Ponazyrevskiy rayon, Shabalinskiy rayon, Shakhunskiy rayon, Shar'inskiy rayon, Vetluzhskiy rayon
Sub-basin area
725,3km²
Upstream area
2 292,3km²
Discharge
9,47m³/s
Mean elev.
120m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Большая Вахтана414 km²
- Bassin de Большая Какша60 km²
5 dept-equivalent regions (GADM L2)
- 399.9 km²54.9% of basin
- 176.8 km²24.2% of basin
- 107.7 km²14.8% of basin
- Ponazyrevskiy rayonKostroma · Russia44.1 km²6.0% of basin
- Shar'inskiy rayonKostroma · Russia0.6 km²0.1% of basin
1 intersecting protected areas
Boloto Kazanskoe
IUCN IIINatural Monument
28.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
58 distinct species · 72 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Большая Какша : 14 espèces reliées par 14 interactions GloBI sur 2 types (connectance 13.3%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
2,9°C
Annual rain
611mm
Moisture idx (CMI)
0,02
Runoff
141mm/an
PET
597mm
AET
451mm
Mean slope
0,8°
Water table
42cm
Forest
96%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)