HydroBASINS lev08 watershed · #2080028860
Bassin de Siuntionjoki
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 1 administrative regions : Uusimaa
Sub-basin area
439,5km²
Upstream area
439,5km²
Discharge
5,11m³/s
Mean elev.
50m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 441.9 km²100.0% of basin
30 intersecting protected areas
Nuuksion kansallispuisto
IUCN IINational Park
7.06 km² overlap
Nuuksio
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.33 km² overlap
Nuuksio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.33 km² overlap
Siuntionjoki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.48 km² overlap
Siuntionjoki
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.06 km² overlap
Tjärnmossen-Flytträsket
IUCN IVPrivate Nature Reserve
1.25 km² overlap
Metsälain erityisen tärkeät elinympäristöt Uusimaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
1.05 km² overlap
Metsätalouden ympäristötukikohteet Uusimaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.98 km² overlap
Lohjanharju ja Ojamonkangas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.98 km² overlap
21 more protected areassorted by overlap area
State Nature Reserve
0.82 km² overlap
Meiko-Lappträsk
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.50 km² overlap
Torsgårdin metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.44 km² overlap
State Nature Reserve
0.42 km² overlap
Private Nature Reserve
0.42 km² overlap
SKVALLERBÄCKEN LUONNONSUO
IUCN IVPrivate Nature Reserve
0.38 km² overlap
Kvarnbyn luonnonsuojelualue
IUCN IVState Nature Reserve
0.25 km² overlap
SJUNDBY PARKBERGETS OCH Å
IUCN IVPrivate Nature Reserve
0.21 km² overlap
Åkärr, Strykmossen ja Pytberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.19 km² overlap
Limberg
IUCN IVPrivate Nature Reserve
0.16 km² overlap
Järvenkolo
IUCN IVPrivate Nature Reserve
0.15 km² overlap
Pytbergin luonnonsuojelualue
IUCN IVState Nature Reserve
0.15 km² overlap
Wikholmskogen
IUCN IVPrivate Nature Reserve
0.10 km² overlap
Private Nature Reserve
0.10 km² overlap
Sammalvuode
IUCN IVPrivate Nature Reserve
0.10 km² overlap
LEMPANSÅN LEHTO
IUCN IVPrivate Nature Reserve
0.10 km² overlap
Pekkula
IUCN IVPrivate Nature Reserve
0.09 km² overlap
Valveliinin luonnonsuojelualue
IUCN Not AssignedTemporary Protection Order
0.09 km² overlap
Rauhantyyssija
IUCN IVPrivate Nature Reserve
0.09 km² overlap
SKVALLERKVARN LUONNONSUOJ
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Gustafsberg
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 132 distinct species · 218 018 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Siuntionjoki : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 6 types (connectance 17.2%, filtre Serrano α=0.2). 11 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°
4,8°C
Annual rain
628mm
Moisture idx (CMI)
0,13
Runoff
381mm/an
PET
547mm
AET
418mm
Mean slope
3,7°
Water table
184cm
Forest
75%
Crops
0%
Urban
6%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)