HydroBASINS lev08 watershed · #2080254820
Bassin de Холова
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 6 administrative regions : Demyanskiy rayon, Krestetskiy rayon, Malovisherskiy rayon, Novgorodskiy rayon, Okulovskiy rayon +1
Sub-basin area
1 900,7km²
Upstream area
1 900,7km²
Discharge
18,66m³/s
Mean elev.
91m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 1735.5 km²90.8% of basin
- 69.8 km²3.7% of basin
- 44.3 km²2.3% of basin
- 33.5 km²1.8% of basin
- 27.2 km²1.4% of basin
- 0.3 km²0.0% of basin
9 intersecting protected areas
Ust`-Volmskij
IUCN IVState Natural Zakaznik
37.01 km² overlap
Natural Monument
22.21 km² overlap
Natural Monument
11.21 km² overlap
Urochishhe Lychenka
IUCN IIINatural Monument
4.39 km² overlap
Ramenskie luga
IUCN IIINatural Monument
3.02 km² overlap
Ozovaya gryada
IUCN IIINatural Monument
2.54 km² overlap
Svyatoj rodnik u reki Vetrenka
IUCN IIINatural Monument
0.14 km² overlap
Natural Monument
0.08 km² overlap
Sosna rumelijskaya (balkanskaya)
IUCN IIINatural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
162 distinct species · 227 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Холова : 27 espèces reliées par 69 interactions GloBI sur 5 types (connectance 11.0%, 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°
3,9°C
Annual rain
663mm
Moisture idx (CMI)
0,06
Runoff
303mm/an
PET
624mm
AET
474mm
Mean slope
1,1°
Water table
69cm
Forest
93%
Crops
3%
Urban
1%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)