HydroBASINS lev08 watershed · #2080344100
Bassin de Надва
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 : Dubrovskiy rayon, Kletnyanskiy rayon, Mglinskiy rayon, Pochepskiy rayon, Zhiryatinskiy rayon +1
Sub-basin area
1 425,1km²
Upstream area
1 425,3km²
Discharge
8,48m³/s
Mean elev.
194m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Kletnyanskiy rayonBryansk · Russia1277.4 km²89.3% of basin
- Zhiryatinskiy rayonBryansk · Russia65.0 km²4.5% of basin
- Mglinskiy rayonBryansk · Russia51.9 km²3.6% of basin
- Zhukovskiy rayonBryansk · Russia31.7 km²2.2% of basin
- Pochepskiy rayonBryansk · Russia3.6 km²0.2% of basin
- Dubrovskiy rayonBryansk · Russia1.4 km²0.1% of basin
5 intersecting protected areas
Kletnyanskij
IUCN IVState Natural Zakaznik
127.88 km² overlap
Kletnyanskij partizanskij les
IUCN IIINatural Monument
69.72 km² overlap
Galoe boloto
IUCN IIINatural Monument
7.40 km² overlap
Kolyhanskoe boloto
IUCN IIINatural Monument
2.09 km² overlap
Natural Monument
0.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
642 distinct species · 1 895 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Надва : 22 espèces reliées par 35 interactions GloBI sur 5 types (connectance 8.0%, filtre Serrano α=0.2). 8 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°
5,4°C
Annual rain
595mm
Moisture idx (CMI)
-0,12
Runoff
177mm/an
PET
678mm
AET
496mm
Mean slope
1,0°
Water table
86cm
Forest
66%
Crops
13%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)