HydroBASINS lev08 watershed · #4080111730
Bassin de Ульма
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 : Mazanovskiy rayon, Romnenskiy rayon, Selemdzhinskiy rayon, Verkhnebureinskiy rayon
Sub-basin area
5 504,3km²
Upstream area
5 504,3km²
Discharge
52,11m³/s
Mean elev.
339m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 5375.1 km²97.3% of basin
- 117.3 km²2.1% of basin
- 23.2 km²0.4% of basin
- Verkhnebureinskiy rayonKhabarovsk · Russia9.6 km²0.2% of basin
3 intersecting protected areas
Ul`minskij
IUCN IVState Natural Zakaznik
1885.09 km² overlap
Al`dikon
IUCN IVWetlands
11.36 km² overlap
Tomskij rybohozyajstvennyj
IUCN IVState Natural Zakaznik
0.98 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
168 distinct species · 207 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Ульма : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 48 interactions GloBI sur 5 types (connectance 7.6%, filtre Serrano α=0.2). 8 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°
-3,6°C
Annual rain
632mm
Moisture idx (CMI)
-0,10
Runoff
283mm/an
PET
701mm
AET
529mm
Mean slope
2,6°
Water table
51cm
Forest
66%
Crops
1%
Urban
0%
Protected
31%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)