HydroBASINS lev08 watershed · #2080217680
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 3 administrative regions : Kymenlaakso, Päijänne Tavastia
Sub-basin area
656,2km²
Upstream area
23 304,7km²
Discharge
202,16m³/s
Mean elev.
99m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Merrasoja668 km²
- Bassin de Kirkkojoki414 km²
3 dept-equivalent regions (GADM L2)
- 334.0 km²50.6% of basin
- Päijänne Tavastia322.6 km²48.9% of basin
- 3.5 km²0.5% of basin
30 intersecting protected areas
Urajärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.47 km² overlap
Metsälain erityisen tärkeät elinympäristöt Päijät-Häme
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
2.90 km² overlap
Metsätalouden ympäristötukikohteet Päijät-Häme
IUCN Not AssignedForestry environmental aid contracts (OECM)
2.34 km² overlap
Pyssyharju
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.18 km² overlap
Mukkulammi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.60 km² overlap
Vähäpää
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.39 km² overlap
Vähäpään luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.35 km² overlap
Riihikallion suojelualue
IUCN IVOld Growth Forest Reserve
0.32 km² overlap
Kivijärvi (Hollola)
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.32 km² overlap
21 more protected areassorted by overlap area
Riihikallio-Pilkanmäki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.32 km² overlap
Riihikallio-Pilkanmäki
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.32 km² overlap
Private Nature Reserve
0.28 km² overlap
Pitkäkallion metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.28 km² overlap
SEESTAN LUONNONSUOJELUALUE
IUCN IVPrivate Nature Reserve
0.24 km² overlap
Rantalan suojelualue
IUCN IVPrivate Nature Reserve
0.22 km² overlap
Mäyrävuoren vanha metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.20 km² overlap
Valtionkärki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.19 km² overlap
Private Nature Reserve
0.17 km² overlap
Private Nature Reserve
0.15 km² overlap
Private Nature Reserve
0.15 km² overlap
Mäkelän luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.13 km² overlap
Mäyrämäki II
IUCN IVPrivate Nature Reserve
0.12 km² overlap
Private Nature Reserve
0.12 km² overlap
Hirvijärvenkallio - Vastamäki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.12 km² overlap
Läpiän koivikkolehdot
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.11 km² overlap
Private Nature Reserve
0.09 km² overlap
Koluojan luonnonsuojelualue
IUCN Not AssignedPrivate Nature Reserve
0.08 km² overlap
Private Nature Reserve
0.07 km² overlap
Libertin luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.07 km² overlap
Private Nature Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 367 distinct species · 92 942 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 : 23 espèces reliées par 105 interactions GloBI sur 6 types (connectance 17.6%, filtre Serrano α=0.2). 12 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°
3,8°C
Annual rain
647mm
Moisture idx (CMI)
0,16
Runoff
205mm/an
PET
545mm
AET
417mm
Mean slope
2,9°
Water table
172cm
Forest
76%
Crops
8%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)