HydroBASINS lev08 watershed · #2080278310
Bassin de Сережа
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 : Andreapol'skiy rayon, Kholmskiy rayon, Toropetskiy rayon
Sub-basin area
1 061,3km²
Upstream area
1 061,3km²
Discharge
9,73m³/s
Mean elev.
199m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Toropetskiy rayonTver' · Russia623.0 km²58.4% of basin
- Andreapol'skiy rayonTver' · Russia426.2 km²40.0% of basin
- 17.3 km²1.6% of basin
22 intersecting protected areas
Andreapol`skij
IUCN IVState Natural Zakaznik
85.45 km² overlap
Boloto Korshunovskie Mhi
IUCN IVState Natural Zakaznik
11.98 km² overlap
Boloto Starovskij Moh
IUCN IVState Natural Zakaznik
8.07 km² overlap
Boloto Myalovskoe
IUCN IVState Natural Zakaznik
6.67 km² overlap
Boloto Hmelinskoe
IUCN IVState Natural Zakaznik
4.17 km² overlap
Petrushinskaya dacha
IUCN IIINatural Monument
3.46 km² overlap
Bubonickij bor
IUCN IIINatural Monument
3.06 km² overlap
Boloto SHHukliha
IUCN IVState Natural Zakaznik
2.66 km² overlap
Boloto Zalezhskoe
IUCN IVState Natural Zakaznik
2.57 km² overlap
13 more protected areassorted by overlap area
Bor Mayak
IUCN IIINatural Monument
2.45 km² overlap
Boloto Vrevskoe
IUCN IVState Natural Zakaznik
2.21 km² overlap
Boloto Urochishhe Krest
IUCN IVState Natural Zakaznik
1.90 km² overlap
Boloto Ul`yanskij Moh
IUCN IVState Natural Zakaznik
1.72 km² overlap
Boloto Noskovskoe
IUCN IVState Natural Zakaznik
1.54 km² overlap
Malinovskij bor
IUCN IIINatural Monument
1.42 km² overlap
Boloto Kuznecovskij Moh
IUCN IVState Natural Zakaznik
1.08 km² overlap
Boloto Krasnopoleckoe
IUCN IVState Natural Zakaznik
0.97 km² overlap
Natural Monument
0.47 km² overlap
Boloto Prigorskij Moh
IUCN IVState Natural Zakaznik
0.38 km² overlap
Ozero Hmelino
IUCN IIINatural Monument
0.19 km² overlap
Boloto Krasnyj Moh
IUCN IVState Natural Zakaznik
0.13 km² overlap
Reliktovye lesa Serezhinskie
IUCN IVState Natural Zakaznik
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
727 distinct species · 1 512 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Сережа : 22 espèces reliées par 52 interactions GloBI sur 5 types (connectance 10.5%, filtre Serrano α=0.2). 10 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°
4,0°C
Annual rain
628mm
Moisture idx (CMI)
-0,01
Runoff
288mm/an
PET
633mm
AET
485mm
Mean slope
1,5°
Water table
119cm
Forest
95%
Crops
4%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)