HydroBASINS lev08 watershed · #4080001340
Bassin de Большая Хадя
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 2 administrative regions : Sovetsko-Gavanskiy rayon, Vaninskiy rayon
Sub-basin area
1 951,2km²
Upstream area
1 951,4km²
Discharge
23,74m³/s
Mean elev.
490m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Sovetsko-Gavanskiy rayonKhabarovsk · Russia1878.2 km²96.0% of basin
- Vaninskiy rayonKhabarovsk · Russia78.7 km²4.0% of basin
2 intersecting protected areas
Protected Natural Complex
0.16 km² overlap
Boloto Mohovoe
IUCN IIINatural Monument
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
224 distinct species · 274 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Хадя : 22 espèces reliées par 25 interactions GloBI sur 4 types (connectance 6.6%, 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°
-1,2°C
Annual rain
824mm
Moisture idx (CMI)
0,40
Runoff
379mm/an
PET
490mm
AET
478mm
Mean slope
8,3°
Water table
206cm
Forest
74%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)