HydroBASINS lev08 watershed · #2080306370
Bassin de Каспля
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 5 administrative regions across 2 countries : Demidovskiy rayon, Lyozna, Rudnyanskiy rayon, Velizhskiy rayon, Vitebsk
Sub-basin area
1 655,6km²
Upstream area
4 931,2km²
Discharge
39,04m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Половья618 km²
- Bassin de Каспля20 km²
5 dept-equivalent regions (GADM L2)
- Rudnyanskiy rayonSmolensk · Russia862.0 km²51.8% of basin
- Demidovskiy rayonSmolensk · Russia408.8 km²24.6% of basin
- Velizhskiy rayonSmolensk · Russia254.8 km²15.3% of basin
- 69.5 km²4.2% of basin
- 68.2 km²4.1% of basin
9 intersecting protected areas
Velizhskij
IUCN IVState Natural Zakaznik
46.11 km² overlap
Natural Monument
24.61 km² overlap
Smolemsk Lakeland
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
5.77 km² overlap
Ozero Bol`shaya Rutavech`
IUCN IIINatural Monument
2.52 km² overlap
Torfyanik Matyushinskij Moh
IUCN IIINatural Monument
2.36 km² overlap
Ozero Vitrino
IUCN IIINatural Monument
1.22 km² overlap
Ozero Edrica
IUCN IIINatural Monument
0.16 km² overlap
Ozero Malaya Rutavech`
IUCN IIINatural Monument
0.08 km² overlap
Ozero Devinka (Devino)
IUCN IIINatural Monument
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
656 distinct species · 1 179 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Каспля : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 2 types (connectance 25.7%, 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°
5,0°C
Annual rain
639mm
Moisture idx (CMI)
-0,02
Runoff
241mm/an
PET
652mm
AET
495mm
Mean slope
0,8°
Water table
81cm
Forest
29%
Crops
39%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)