HydroBASINS lev08 watershed · #2080028930
Bassin de Vihtijoki
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 : Finland Proper, Tavastia Proper, Uusimaa
Sub-basin area
2 322,7km²
Upstream area
2 322,7km²
Discharge
26,51m³/s
Mean elev.
76m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 1839.3 km²78.7% of basin
- 275.5 km²11.8% of basin
- 221.2 km²9.5% of basin
30 intersecting protected areas
Maakylän-Räyskälän alue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.91 km² overlap
Puujärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.94 km² overlap
Komion luonnonsuojelualue
IUCN IVState Nature Reserve
5.96 km² overlap
Liesjärven kansallispuisto
IUCN IINational Park
4.53 km² overlap
Nummi-Pusulan lintuvedet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.23 km² overlap
Pohjan-Kiskon järvialue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.17 km² overlap
Metsälain erityisen tärkeät elinympäristöt Uusimaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
3.57 km² overlap
SIMIJÄRVEN LUONNONSUOJELU
IUCN IVPrivate Nature Reserve
3.47 km² overlap
Mustionjoki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.77 km² overlap
21 more protected areassorted by overlap area
Metsätalouden ympäristötukikohteet Uusimaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
2.71 km² overlap
Varesharju
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.71 km² overlap
Tervalamminsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.55 km² overlap
Hyyppärän harjualue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.54 km² overlap
Lohjanjärven alueet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.13 km² overlap
State Nature Reserve
1.98 km² overlap
State Nature Reserve
1.85 km² overlap
Vanjärvi, Märjäntienmäki ja Laukkamäki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.80 km² overlap
Lohjanharju ja Ojamonkangas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.74 km² overlap
Keräkankare ja Kylmälähde
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.71 km² overlap
VANJÄRVI-LAUKKAMÄKI
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.56 km² overlap
Lopen Isosuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.38 km² overlap
VANJÄRVI
IUCN IVPrivate Nature Reserve
1.30 km² overlap
State Nature Reserve
1.30 km² overlap
Keihässuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.27 km² overlap
Konianvuori
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.23 km² overlap
Karkali, Suuriniemi ja Mailan alueet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.20 km² overlap
Vaskijärven metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.06 km² overlap
Karkalin luonnonpuisto
IUCN IVStrict Nature Reserve
1.03 km² overlap
Puujärven luonnonsuojelualue
IUCN IVState Nature Reserve
0.94 km² overlap
State Nature Reserve
0.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
15 096 distinct species · 1 132 450 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 Vihtijoki : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 21.4%, 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°
4,6°C
Annual rain
620mm
Moisture idx (CMI)
0,11
Runoff
369mm/an
PET
554mm
AET
419mm
Mean slope
3,5°
Water table
182cm
Forest
77%
Crops
0%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)