HydroBASINS lev08 watershed · #2080344650
Bassin de Болва
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 : Bryansk, Bryanskiy rayon, Dyat'kovo, Dyat'kovskiy rayon, Lyudinovskiy rayon +1
Sub-basin area
1 306,4km²
Upstream area
4 243,5km²
Discharge
21,56m³/s
Mean elev.
193m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Неполоть649 km²
- Bassin de Болва257 km²
6 dept-equivalent regions (GADM L2)
- 457.7 km²34.9% of basin
- Dyat'kovskiy rayonBryansk · Russia438.5 km²33.4% of basin
- Bryanskiy rayonBryansk · Russia249.3 km²19.0% of basin
- 142.0 km²10.8% of basin
- 23.9 km²1.8% of basin
- 0.4 km²0.0% of basin
9 intersecting protected areas
Natural Monument
11.53 km² overlap
Partizanskie topi (Ivotok)
IUCN IVState Natural Zakaznik
6.76 km² overlap
Urochishhe Kuyava
IUCN IIINatural Monument
4.76 km² overlap
Natural Monument
1.15 km² overlap
Natural Monument
0.95 km² overlap
Lesnoj sosnovyj massiv Lukavskij
IUCN IIINatural Monument
0.26 km² overlap
Lesnoj massiv CHernichniki
IUCN IIINatural Monument
0.25 km² overlap
Urochishhe Znamenskaya gorka
IUCN IIINatural Monument
0.05 km² overlap
Natural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 379 distinct species · 26 714 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Болва : 28 espèces reliées par 94 interactions GloBI sur 5 types (connectance 14.1%, 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°
4,9°C
Annual rain
592mm
Moisture idx (CMI)
-0,12
Runoff
153mm/an
PET
671mm
AET
491mm
Mean slope
1,3°
Water table
159cm
Forest
65%
Crops
16%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)