HydroBASINS lev08 watershed · #2080053670
Bassin de River Stour
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 : NA, Suffolk
Sub-basin area
901,2km²
Upstream area
901,2km²
Discharge
7,22m³/s
Mean elev.
68m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- SuffolkEngland · United Kingdom631.5 km²69.8% of basin
- NAEngland · United Kingdom233.6 km²25.8% of basin
- NAEngland · United Kingdom39.6 km²4.4% of basin
30 intersecting protected areas
Dedham Vale
IUCN VArea of Outstanding Natural Beauty
90.56 km² overlap
Stour and Orwell Estuaries
IUCN Not ReportedEmerald Network
1.29 km² overlap
Stour & Orwell Estuaries
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.27 km² overlap
Cattawade Marshes
IUCN IVSite of Special Scientific Interest
0.89 km² overlap
Site of Special Scientific Interest
0.79 km² overlap
Site of Special Scientific Interest
0.79 km² overlap
Kentwell Woods
IUCN IVSite of Special Scientific Interest
0.78 km² overlap
Stour Estuary
IUCN IVNature Reserve
0.69 km² overlap
Flatford
IUCN VNature Reserve
0.66 km² overlap
21 more protected areassorted by overlap area
Cavendish Woods
IUCN IVSite of Special Scientific Interest
0.54 km² overlap
Sudbury Common Lands
IUCN IVLocal Nature Reserve
0.50 km² overlap
Arger Fen
IUCN IVSite of Special Scientific Interest
0.50 km² overlap
Over and Lawn Woods
IUCN IVSite of Special Scientific Interest
0.44 km² overlap
Milden Thicks
IUCN IVSite of Special Scientific Interest
0.42 km² overlap
Hintlesham Woods
IUCN IVSite of Special Scientific Interest
0.41 km² overlap
Stour Estuary
IUCN IVSite of Special Scientific Interest
0.40 km² overlap
Out and Plunder Woods
IUCN IVSite of Special Scientific Interest
0.39 km² overlap
Dedham
IUCN VNature Reserve
0.38 km² overlap
Wolves Wood Reserves
IUCN IVNature Reserve
0.37 km² overlap
Glemsford Pits
IUCN IVSite of Special Scientific Interest
0.33 km² overlap
Stour and Orwell Estuaries
IUCN Not ReportedMarine Protected Area (OSPAR)
0.33 km² overlap
Brent Eleigh Woods
IUCN IVSite of Special Scientific Interest
0.32 km² overlap
Bradfield Woods
IUCN IVSite of Special Scientific Interest
0.30 km² overlap
Bradfield Woods
IUCN IVNational Nature Reserve
0.30 km² overlap
Thorpe Morieux Woods
IUCN IVSite of Special Scientific Interest
0.29 km² overlap
Frithy and Chadacre Wood
IUCN IVSite of Special Scientific Interest
0.29 km² overlap
Edwardstone Woods
IUCN IVSite of Special Scientific Interest
0.27 km² overlap
The Railway Walks
IUCN IVLocal Nature Reserve
0.25 km² overlap
Tiger Hill
IUCN IVLocal Nature Reserve
0.22 km² overlap
Groton Wood
IUCN IVSite of Special Scientific Interest
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 718 distinct species · 722 019 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 River Stour : 17 espèces reliées par 151 interactions GloBI sur 5 types (connectance 26.9%, filtre Serrano α=0.2). 17 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°
9,4°C
Annual rain
555mm
Moisture idx (CMI)
-0,16
Runoff
271mm/an
PET
664mm
AET
468mm
Mean slope
1,5°
Water table
115cm
Forest
0%
Crops
83%
Urban
4%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)