HydroBASINS lev08 watershed · #2080257780
Bassin de Сить
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 7 administrative regions : Bezhetskiy rayon, Breytovskiy rayon, Krasnokholmskiy rayon, Myshkinskiy rayon, Nekouzskiy rayon +2
Sub-basin area
2 118,2km²
Upstream area
2 118,3km²
Discharge
13,97m³/s
Mean elev.
151m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Nekouzskiy rayonYaroslavl' · Russia838.1 km²39.4% of basin
- Krasnokholmskiy rayonTver' · Russia543.3 km²25.5% of basin
- Breytovskiy rayonYaroslavl' · Russia415.1 km²19.5% of basin
- Sonkovskiy rayonTver' · Russia210.3 km²9.9% of basin
- Water bodyYaroslavl' · Russia106.1 km²5.0% of basin
- Myshkinskiy rayonYaroslavl' · Russia10.7 km²0.5% of basin
- Bezhetskiy rayonTver' · Russia5.6 km²0.3% of basin
9 intersecting protected areas
Parfen`evskij
IUCN IVState Natural Zakaznik
95.76 km² overlap
Bolota Solodiha i Morskoe
IUCN IVState Landscape Zakaznik
38.34 km² overlap
Natural Monument
16.87 km² overlap
Urochishhe Nehlyudovskij Moh
IUCN IIINatural Monument
4.92 km² overlap
Boloto Lapshinskoe
IUCN IVState Natural Zakaznik
0.73 km² overlap
Sosnovyj bor po ul. Parkovoj
IUCN IIINatural Monument
0.13 km² overlap
Brejtovskij park
IUCN IIINatural Monument
0.10 km² overlap
Park sela Novinskogo
IUCN Not ReportedNatural Monument
0.04 km² overlap
Berezovaya roshha sela Brejtovo
IUCN IIINatural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
459 distinct species · 978 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Сить : 32 espèces reliées par 89 interactions GloBI sur 6 types (connectance 10.9%, filtre Serrano α=0.2). 9 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
603mm
Moisture idx (CMI)
-0,02
Runoff
208mm/an
PET
615mm
AET
467mm
Mean slope
0,6°
Water table
45cm
Forest
47%
Crops
35%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)