HydroBASINS lev08 watershed · #2080029120
Bassin de Kojonjoki
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 4 administrative regions : Finland Proper, Pirkanmaa, Satakunta, Tavastia Proper
Sub-basin area
2 309,4km²
Upstream area
2 309,5km²
Discharge
16,76m³/s
Mean elev.
80m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1658.2 km²71.4% of basin
- 582.4 km²25.1% of basin
- 71.8 km²3.1% of basin
- 10.4 km²0.4% of basin
30 intersecting protected areas
Kurjenrahkan kansallispuisto
IUCN IINational Park
19.35 km² overlap
Kurjenrahka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.80 km² overlap
State Nature Reserve
8.32 km² overlap
Kontolanrahka
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.29 km² overlap
Kontolanrahka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.29 km² overlap
Telkunsuo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.07 km² overlap
Telkunsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.07 km² overlap
State Nature Reserve
6.75 km² overlap
Säkylänharju
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.83 km² overlap
21 more protected areassorted by overlap area
Eksyssuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.78 km² overlap
Öksyssuon luonnonsuojelualue
IUCN IVState Nature Reserve
4.45 km² overlap
State Nature Reserve
4.04 km² overlap
Himmaistenrahka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.82 km² overlap
Metsälain erityisen tärkeät elinympäristöt Varsinais-Suomi
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
2.16 km² overlap
State Nature Reserve
2.06 km² overlap
Maisaarensuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.01 km² overlap
Metsätalouden ympäristötukikohteet Varsinais-Suomi
IUCN Not AssignedForestry environmental aid contracts (OECM)
1.19 km² overlap
State Nature Reserve
0.99 km² overlap
Rehtisuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.64 km² overlap
Ypäjän hevoslaitumet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.63 km² overlap
Metsälain erityisen tärkeät elinympäristöt Kanta-Häme
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.59 km² overlap
Rehtsuon luonnonsuojelualue
IUCN IVState Nature Reserve
0.57 km² overlap
Private Nature Reserve
0.41 km² overlap
Metsätalouden ympäristötukikohteet Kanta-Häme
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.37 km² overlap
State Nature Reserve
0.29 km² overlap
Private Nature Reserve
0.29 km² overlap
Private Nature Reserve
0.27 km² overlap
Private Nature Reserve
0.26 km² overlap
Private Nature Reserve
0.24 km² overlap
Pappilan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 259 distinct species · 577 584 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Kojonjoki : 18 espèces reliées par 96 interactions GloBI sur 6 types (connectance 20.6%, filtre Serrano α=0.2). 13 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°
4,3°C
Annual rain
633mm
Moisture idx (CMI)
0,11
Runoff
319mm/an
PET
564mm
AET
423mm
Mean slope
2,6°
Water table
86cm
Forest
58%
Crops
58%
Urban
3%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)