HydroBASINS lev08 watershed · #4080096150
Bassin de Ул
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 3 administrative regions : Nikolaevskiy rayon, Tuguro-Chumikanskiy rayon, Ul'chskiy rayon
Sub-basin area
6 674,8km²
Upstream area
6 675,4km²
Discharge
75,7m³/s
Mean elev.
151m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Nikolaevskiy rayonKhabarovsk · Russia5851.7 km²87.3% of basin
- Ul'chskiy rayonKhabarovsk · Russia597.3 km²8.9% of basin
- Tuguro-Chumikanskiy rayonKhabarovsk · Russia254.0 km²3.8% of basin
3 intersecting protected areas
Ulskij
IUCN IVState Natural Zakaznik
498.93 km² overlap
Priozernyj
IUCN IVState Natural Zakaznik
336.95 km² overlap
Dal`zhinskij
IUCN IVState Natural Zakaznik
224.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
222 distinct species · 307 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Ул : 22 espèces reliées par 20 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 3 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°
-2,4°C
Annual rain
626mm
Moisture idx (CMI)
0,14
Runoff
358mm/an
PET
533mm
AET
431mm
Mean slope
4,5°
Water table
82cm
Forest
59%
Crops
0%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)