HydroBASINS lev08 watershed · #2080028660
Bassin de Kymijoki
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 2 administrative regions : Eastern Uusimaa, Kymenlaakso
Sub-basin area
343,4km²
Upstream area
26 798,3km²
Discharge
226,01m³/s
Mean elev.
29m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Sorsajoki411 km²
- Bassin de Kymijoki280 km²
2 dept-equivalent regions (GADM L2)
- 337.8 km²97.8% of basin
- 7.5 km²2.2% of basin
30 intersecting protected areas
Kymijoki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.28 km² overlap
Valkmusa National Park
IUCN Not ReportedWetland of International Importance (Ramsar Site)
9.29 km² overlap
Valkmusan kansallispuisto
IUCN IINational Park
9.09 km² overlap
Valkmusa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.95 km² overlap
Muhjärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.02 km² overlap
Laajakoskenjärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.72 km² overlap
Äijönvuori, Suomi 100
IUCN IVPrivate Nature Reserve
0.57 km² overlap
Rapakivenjärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.52 km² overlap
Metsälain erityisen tärkeät elinympäristöt Kymenlaakso
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.39 km² overlap
21 more protected areassorted by overlap area
Private Nature Reserve
0.36 km² overlap
Junkkarinvuori
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.35 km² overlap
Metsätalouden ympäristötukikohteet Kymenlaakso
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.31 km² overlap
Mämmälän maaosakaskunnan luonnonsuojelualue
IUCN Not AssignedTemporary Protection Order
0.17 km² overlap
Private Nature Reserve
0.15 km² overlap
Rainionmäki ja Sammalsuon pelto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Private Nature Reserve
0.11 km² overlap
Suurisuo-Rajajärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.10 km² overlap
Mossatorp
IUCN IVPrivate Nature Reserve
0.08 km² overlap
SUUTARINSAAREN SUOJELUALUE
IUCN IVPrivate Nature Reserve
0.07 km² overlap
Toivolan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.07 km² overlap
Varkahon luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.06 km² overlap
Kantolankallio
IUCN IVPrivate Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
KORPIMETSÄ
IUCN IVPrivate Nature Reserve
0.06 km² overlap
Syrjälä
IUCN IVPrivate Nature Reserve
0.06 km² overlap
Varkaho I luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.05 km² overlap
Kuuselan vanha metsä
IUCN IVPrivate Nature Reserve
0.04 km² overlap
Känkkärä, Suomi 100
IUCN IVPrivate Nature Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 542 distinct species · 209 333 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Kymijoki : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 2 types (connectance 13.4%, filtre Serrano α=0.2). 3 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°
4,5°C
Annual rain
609mm
Moisture idx (CMI)
0,09
Runoff
322mm/an
PET
552mm
AET
411mm
Mean slope
2,3°
Water table
96cm
Forest
72%
Crops
44%
Urban
7%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)