HydroBASINS lev08 watershed · #2080274400
Bassin de Утроя
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 across 2 countries : Balvi, Ludza, Ostrovskiy rayon, Pytalovskiy rayon, Rezekne
Sub-basin area
1 262,5km²
Upstream area
1 262,8km²
Discharge
8,49m³/s
Mean elev.
102m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Pytalovskiy rayonPskov · Russia564.5 km²44.5% of basin
- 548.7 km²43.2% of basin
- 88.6 km²7.0% of basin
- Ostrovskiy rayonPskov · Russia35.5 km²2.8% of basin
- 31.3 km²2.5% of basin
13 intersecting protected areas
Kreiču purvs
IUCN IVNature Reserve
7.95 km² overlap
Kreiču purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.93 km² overlap
Numernes valnis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.20 km² overlap
Numernes valnis
IUCN IINature Park
5.20 km² overlap
Gulbinkas purvs
IUCN IVNature Reserve
0.60 km² overlap
Gulbinkas purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.60 km² overlap
Motrines ezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.46 km² overlap
Motrines ezers
IUCN IVNature Reserve
0.46 km² overlap
Ladas upes staignāju meži
IUCN IVNature Reserve
0.38 km² overlap
4 more protected areassorted by overlap area
Dūkšupes meži
IUCN IVNature Reserve
0.24 km² overlap
Nature Reserve
0.23 km² overlap
Gaiļu kalns
IUCN IVNature Reserve
0.02 km² overlap
Gaiļukalns
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
511 distinct species · 1 156 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Утроя : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 4 types (connectance 14.0%, 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°
5,0°C
Annual rain
633mm
Moisture idx (CMI)
0,02
Runoff
216mm/an
PET
621mm
AET
475mm
Mean slope
0,7°
Water table
43cm
Forest
13%
Crops
61%
Urban
1%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)