HydroBASINS lev08 watershed · #2080300020
Bassin de Дрыса
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 : Polatsak, Rasony
Sub-basin area
828,8km²
Upstream area
3 468,3km²
Discharge
26,87m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Дрыса928 km²
- Bassin de Нешчарда348 km²
2 dept-equivalent regions (GADM L2)
- 527.0 km²63.3% of basin
- 305.7 km²36.7% of basin
1 intersecting protected areas
Lonno
IUCN IVNature Sanctuary or Partial Reserve
3.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
549 distinct species · 698 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Дрыса : 22 espèces reliées par 41 interactions GloBI sur 4 types (connectance 12.6%, filtre Serrano α=0.2). 4 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°
5,3°C
Annual rain
644mm
Moisture idx (CMI)
0,00
Runoff
233mm/an
PET
648mm
AET
493mm
Mean slope
1,0°
Water table
60cm
Forest
82%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)