HydroBASINS lev08 watershed · #2080028220
Bassin de Коваши
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 : Gatchinskiy rayon, Lomonosovskiy rayon, Sankt-Peterburg gorsovet, Sosnovyy Bor, Volosovskiy rayon
Sub-basin area
1 661,3km²
Upstream area
1 661,3km²
Discharge
0,14m³/s
Mean elev.
61m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 1135.4 km²68.0% of basin
- 517.6 km²31.0% of basin
- 1.6 km²0.1% of basin
- 0.9 km²0.1% of basin
- 0.7 km²0.0% of basin
10 intersecting protected areas
Lebyazhy Nature Reserve
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
17.48 km² overlap
Gostilickij
IUCN IVState Natural Zakaznik
15.99 km² overlap
Southern coast of the Gulf of Finland, Baltic Sea
IUCN Not ReportedWetland of International Importance (Ramsar Site)
4.68 km² overlap
State Natural Zakaznik
2.66 km² overlap
Natural Monument
1.59 km² overlap
Park Sergievka
IUCN Not ReportedNatural Monument
1.20 km² overlap
Zapadnyj Kotlin
IUCN IVState Natural Zakaznik
1.02 km² overlap
Strel`ninskij bereg
IUCN IIINatural Monument
0.40 km² overlap
Dudergofskie vysoty
IUCN IIINatural Monument
0.31 km² overlap
1 more protected areassorted by overlap area
Polyana Bianki
IUCN IVProtected Natural Landscape
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 495 distinct species · 99 937 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Коваши : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 7 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°
4,6°C
Annual rain
668mm
Moisture idx (CMI)
0,16
Runoff
179mm/an
PET
559mm
AET
435mm
Mean slope
1,1°
Water table
72cm
Forest
64%
Crops
21%
Urban
20%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)