HydroBASINS lev08 watershed · #2080250040
Bassin de Черма
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 2 administrative regions : Gdovskiy rayon, Water body
Sub-basin area
1 084,5km²
Upstream area
1 084,6km²
Discharge
6,97m³/s
Mean elev.
43m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Gdovskiy rayonPskov · Russia623.5 km²57.2% of basin
- Water bodyPskov · Russia466.8 km²42.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
654 distinct species · 2 520 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Черма : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 5 types (connectance 15.7%, 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°
4,8°C
Annual rain
626mm
Moisture idx (CMI)
0,07
Runoff
204mm/an
PET
585mm
AET
447mm
Mean slope
0,5°
Water table
34cm
Forest
50%
Crops
6%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)