HydroBASINS lev08 watershed · #2080398170
Bassin de Сейм
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 across 2 countries : Bilopils'kyi, Glushkovskiy rayon, Hlukhivs'kyi, Korenevskiy rayon, Putyvl's'kyi +1
Sub-basin area
1 063,8km²
Upstream area
20 459,2km²
Discharge
98,07m³/s
Mean elev.
159m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Снагость678 km²
- Bassin de Реут27 km²
6 dept-equivalent regions (GADM L2)
- Glushkovskiy rayonKursk · Russia579.5 km²54.3% of basin
- 265.6 km²24.9% of basin
- Korenevskiy rayonKursk · Russia158.0 km²14.8% of basin
- 41.7 km²3.9% of basin
- Ryl'skiy rayonKursk · Russia20.0 km²1.9% of basin
- 3.0 km²0.3% of basin
9 intersecting protected areas
Serednioseimskyi
IUCN Not ReportedEmerald Network
114.16 km² overlap
Serednoseimskyi
IUCN Not ReportedZakaznyk
5.83 km² overlap
Monostyrskyi lis
IUCN Not ReportedZakaznyk
3.70 km² overlap
Yurivskyi
IUCN Not ReportedZakaznyk
2.12 km² overlap
Bobrovyi
IUCN Not ReportedZakaznyk
0.67 km² overlap
Obnazheniya Kozyulina ovraga
IUCN IIINatural Monument
0.24 km² overlap
Gladiolusovye luga
IUCN IIINatural Monument
0.20 km² overlap
Molchanskyi
IUCN Not ReportedZakaznyk
0.05 km² overlap
Novoslobidski duby
IUCN Not ReportedNatural monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
520 distinct species · 804 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Сейм : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 13.6%, 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°
6,5°C
Annual rain
607mm
Moisture idx (CMI)
-0,18
Runoff
122mm/an
PET
741mm
AET
511mm
Mean slope
1,3°
Water table
126cm
Forest
7%
Crops
58%
Urban
2%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)