HydroBASINS lev08 watershed · #2080157160
Bassin de Korvuanjoki
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 : Kainuu, Northern Ostrobothnia
Sub-basin area
3 101,6km²
Upstream area
3 101,8km²
Discharge
37,43m³/s
Mean elev.
203m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 1668.0 km²53.4% of basin
- 1454.1 km²46.6% of basin
30 intersecting protected areas
Olvassuo Mires
IUCN IaWetland of International Importance (Ramsar Site)
98.88 km² overlap
Olvassuo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
98.88 km² overlap
Olvassuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
98.88 km² overlap
Olvassuon luonnonpuisto
IUCN IaStrict Nature Reserve
57.90 km² overlap
State Nature Reserve
29.38 km² overlap
Siikavaaran - Korpijoen seutu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
28.69 km² overlap
Metsäkylä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
26.71 km² overlap
Protected Mire
19.91 km² overlap
State Nature Reserve
18.00 km² overlap
21 more protected areassorted by overlap area
Tervajärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.21 km² overlap
Tervajärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.21 km² overlap
Ilosenkangas - Kylmäsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.96 km² overlap
Lauttasuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.07 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pohjois-Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
6.95 km² overlap
State Nature Reserve
6.82 km² overlap
Lohivaaran - Matarasuon alue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.69 km² overlap
State Nature Reserve
6.68 km² overlap
Kuirivaara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.45 km² overlap
Metsälain erityisen tärkeät elinympäristöt Kainuu
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
6.12 km² overlap
Louhensuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.99 km² overlap
State Nature Reserve
5.96 km² overlap
Riuskanselkonen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.94 km² overlap
Jylkkyvaara ja Jylkynsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.83 km² overlap
Äikänselkä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.17 km² overlap
Suovaara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.14 km² overlap
Luhtarämiä ja Haaposuo-Korppisuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.87 km² overlap
Jyrkkävaara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.80 km² overlap
Nuottivaara - Puhakkasuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.79 km² overlap
Protected Mire
4.57 km² overlap
Sammalharju
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 603 distinct species · 81 789 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Korvuanjoki : 23 espèces reliées par 66 interactions GloBI sur 4 types (connectance 11.1%, 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°
0,4°C
Annual rain
567mm
Moisture idx (CMI)
0,16
Runoff
378mm/an
PET
475mm
AET
377mm
Mean slope
2,6°
Water table
92cm
Forest
92%
Crops
0%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)