HydroBASINS lev08 watershed · #2080275140
Bassin de Синяя
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 8 administrative regions across 3 countries : Kraslava, Krasnogorodskiy rayon, Ludza, Ostrovskiy rayon, Pushkino-Gorskiy rayon +3
Sub-basin area
2 041,8km²
Upstream area
2 041,8km²
Discharge
14,05m³/s
Mean elev.
113m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- Krasnogorodskiy rayonPskov · Russia927.2 km²45.2% of basin
- 757.8 km²36.9% of basin
- Ostrovskiy rayonPskov · Russia152.8 km²7.4% of basin
- 58.3 km²2.8% of basin
- Pushkino-Gorskiy rayonPskov · Russia53.0 km²2.6% of basin
- Pytalovskiy rayonPskov · Russia39.6 km²1.9% of basin
- Sebezhskiy rayonPskov · Russia39.5 km²1.9% of basin
- VyerkhnyazdvinskVitebsk · Belarus23.4 km²1.1% of basin
27 intersecting protected areas
Ostrovskij
IUCN IVState Natural Zoological Zakaznik
128.21 km² overlap
Osveyskiy
IUCN IVNature Sanctuary or Partial Reserve
30.38 km² overlap
Osveiski
IUCN IVWetland of International Importance (Ramsar Site)
29.81 km² overlap
Klešniku purvs
IUCN IVNature Reserve
27.09 km² overlap
Klešniku purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.07 km² overlap
Klešniku purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.07 km² overlap
Gulbju un Platpirovas purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.11 km² overlap
Gulbju un Platpirovas purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.11 km² overlap
Gulbju un Platpirovas purvs
IUCN IVNature Reserve
20.11 km² overlap
18 more protected areassorted by overlap area
Sebezhskij
IUCN IINational Park
15.25 km² overlap
Istras pauguraine
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.66 km² overlap
Istras pauguraine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.66 km² overlap
Istras pauguraine
IUCN IINature Park
8.64 km² overlap
Istras ezers
IUCN IVNature Reserve
3.31 km² overlap
Istras ezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.31 km² overlap
Kurjanovas ezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.61 km² overlap
Kurjanovas ezers
IUCN IINature Park
2.61 km² overlap
Grebļukalns
IUCN IVNature Reserve
2.45 km² overlap
Grebļukalns
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.45 km² overlap
Zilupes meži
IUCN IVNature Reserve
2.41 km² overlap
Istras staignāju meži
IUCN IVNature Reserve
0.69 km² overlap
Mežamatveju pļavas
IUCN IVMicro-reserve
0.16 km² overlap
Mežamatveju pļavas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Rundānu Valna dūbe
IUCN IIINature Monument
0.13 km² overlap
Ozupienes parks
IUCN IIINature Monument
0.03 km² overlap
Mežamatveju kadiķu pļavas
IUCN IVMicro-reserve
0.03 km² overlap
Mežamatveju kadiķu pļavas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
661 distinct species · 1 520 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Синяя : 29 espèces reliées par 92 interactions GloBI sur 5 types (connectance 10.7%, filtre Serrano α=0.2). 13 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)
0,01
Runoff
220mm/an
PET
626mm
AET
479mm
Mean slope
0,9°
Water table
66cm
Forest
39%
Crops
30%
Urban
0%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)