HydroBASINS lev08 watershed · #2080395130
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 3 administrative regions : Buryns'kyi, Konotops'kyi, Putyvl's'kyi
Sub-basin area
891,6km²
Upstream area
22 638km²
Discharge
103,92m³/s
Mean elev.
146m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Вир1287 km²
- Bassin de Сейм1064 km²
3 dept-equivalent regions (GADM L2)
- 473.6 km²52.9% of basin
- 359.0 km²40.1% of basin
- 62.3 km²7.0% of basin
10 intersecting protected areas
Seimskyi
IUCN Not ReportedRegional landscape park
259.74 km² overlap
Serednioseimskyi
IUCN Not ReportedEmerald Network
239.69 km² overlap
Serednoseimskyi
IUCN Not ReportedZakaznyk
12.62 km² overlap
Molchanskyi
IUCN Not ReportedZakaznyk
7.08 km² overlap
Monostyrskyi lis
IUCN Not ReportedZakaznyk
4.92 km² overlap
Chervone ozero
IUCN Not ReportedNatural monument
0.31 km² overlap
Spadshchanske ozero
IUCN Not ReportedNatural monument
0.15 km² overlap
Haidukova krynytsia
IUCN Not ReportedNatural monument
0.00 km² overlap
Dub v s. Shyriayeve
IUCN Not ReportedNatural monument
0.00 km² overlap
1 more protected areassorted by overlap area
Vikovyi dub v m. Buryn
IUCN Not ReportedNatural monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 409 distinct species · 4 882 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 : 22 espèces reliées par 62 interactions GloBI sur 4 types (connectance 13.3%, 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°
6,8°C
Annual rain
606mm
Moisture idx (CMI)
-0,19
Runoff
110mm/an
PET
750mm
AET
511mm
Mean slope
0,7°
Water table
78cm
Forest
5%
Crops
59%
Urban
2%
Protected
32%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)