HydroBASINS lev08 watershed · #2080361290
Bassin de River Wensum
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 : NA
Sub-basin area
302,6km²
Upstream area
644,2km²
Discharge
6,18m³/s
Mean elev.
37m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de River Wensum236 km²
- Bassin de Wendling Beck105 km²
1 dept-equivalent regions (GADM L2)
- NAEngland · United Kingdom303.8 km²100.0% of basin
22 intersecting protected areas
River Wensum
IUCN IVSite of Special Scientific Interest
1.34 km² overlap
Foxley Wood
IUCN IVNational Nature Reserve
1.24 km² overlap
Foxley Wood
IUCN IVSite of Special Scientific Interest
1.24 km² overlap
River Wensum
IUCN Not ReportedEmerald Network
0.93 km² overlap
Hockering Wood
IUCN IVSite of Special Scientific Interest
0.90 km² overlap
Mousehold Heath
IUCN IVLocal Nature Reserve
0.65 km² overlap
Norfolk Valley Fens
IUCN Not ReportedEmerald Network
0.27 km² overlap
Swannington Upgate Common
IUCN IVSite of Special Scientific Interest
0.20 km² overlap
Whitwell Common
IUCN IVSite of Special Scientific Interest
0.19 km² overlap
13 more protected areassorted by overlap area
Badley Moor
IUCN IVSite of Special Scientific Interest
0.18 km² overlap
Alderford Common
IUCN IVSite of Special Scientific Interest
0.17 km² overlap
The Broads
IUCN VNational Park
0.10 km² overlap
Site of Special Scientific Interest
0.10 km² overlap
Local Nature Reserve
0.08 km² overlap
Booton Common
IUCN IVSite of Special Scientific Interest
0.08 km² overlap
Cawston and Marsham Heaths
IUCN IVSite of Special Scientific Interest
0.07 km² overlap
Mattishall Moor
IUCN IVSite of Special Scientific Interest
0.06 km² overlap
St James' Pit
IUCN IVSite of Special Scientific Interest
0.03 km² overlap
Site of Special Scientific Interest
0.02 km² overlap
Lion Wood
IUCN IVLocal Nature Reserve
0.01 km² overlap
Blickling
IUCN VNature Reserve
0.00 km² overlap
Catton Grove Chalk Pit
IUCN IVSite of Special Scientific Interest
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 657 distinct species · 649 929 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Wensum : 27 espèces reliées par 75 interactions GloBI sur 6 types (connectance 11.3%, filtre Serrano α=0.2). 10 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°
10,0°C
Annual rain
631mm
Moisture idx (CMI)
-0,01
Runoff
318mm/an
PET
639mm
AET
486mm
Mean slope
1,1°
Water table
96cm
Forest
0%
Crops
84%
Urban
18%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)