HydroBASINS lev08 watershed · #2080053800
Bassin de Ebbsfleet
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 : Kent, Medway, Thurrock
Sub-basin area
220,3km²
Upstream area
220,3km²
Discharge
0,72m³/s
Mean elev.
28m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- MedwayEngland · United Kingdom117.5 km²53.1% of basin
- KentEngland · United Kingdom88.7 km²40.1% of basin
- ThurrockEngland · United Kingdom0.5 km²0.2% of basin
27 intersecting protected areas
Site of Special Scientific Interest
35.05 km² overlap
Thames Estuary and Marshes
IUCN Not ReportedWetland of International Importance (Ramsar Site)
34.85 km² overlap
Thames Estuary and Marshes
IUCN Not ReportedEmerald Network
27.25 km² overlap
Medway Estuary and Marshes
IUCN IVSite of Special Scientific Interest
13.54 km² overlap
Medway Estuary & Marshes
IUCN Not ReportedWetland of International Importance (Ramsar Site)
13.31 km² overlap
Medway Estuary - Zone 1
IUCN IVMarine Conservation Zone
13.31 km² overlap
Medway Estuary - Zone 2
IUCN IVMarine Conservation Zone
13.30 km² overlap
Medway Estuary and Marshes
IUCN Not ReportedEmerald Network
13.25 km² overlap
Medway Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
13.25 km² overlap
18 more protected areassorted by overlap area
Medway Estuary and Marshes
IUCN Not ReportedMarine Protected Area (OSPAR)
10.89 km² overlap
Kent Downs
IUCN VArea of Outstanding Natural Beauty
6.34 km² overlap
Thames Estuary and Marshes
IUCN Not ReportedMarine Protected Area (OSPAR)
6.31 km² overlap
Shorne Marshes
IUCN IVNature Reserve
3.74 km² overlap
Northward Hill
IUCN IVNature Reserve
3.63 km² overlap
Site of Special Scientific Interest
3.51 km² overlap
Cliffe Pools
IUCN IVNature Reserve
2.38 km² overlap
Shorne and Ashenbank Woods
IUCN IVSite of Special Scientific Interest
1.93 km² overlap
Swanscombe Peninsula
IUCN IVSite of Special Scientific Interest
1.15 km² overlap
Nor Marsh & Motney Hill
IUCN IVNature Reserve
0.72 km² overlap
Northward Hill
IUCN IVSite of Special Scientific Interest
0.53 km² overlap
High Halstow
IUCN IVNational Nature Reserve
0.53 km² overlap
Tower Hill to Cockham Wood
IUCN IVSite of Special Scientific Interest
0.49 km² overlap
Great Crabbles Wood
IUCN IVSite of Special Scientific Interest
0.33 km² overlap
Cobham Woods
IUCN IVSite of Special Scientific Interest
0.15 km² overlap
Dalham Farm
IUCN IVSite of Special Scientific Interest
0.09 km² overlap
Owletts
IUCN VNature Reserve
0.09 km² overlap
Ranscombe Farm Reserve
IUCN IVNature Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 571 distinct species · 253 767 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Ebbsfleet : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 3 types (connectance 11.8%, filtre Serrano α=0.2). 3 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°
10,1°C
Annual rain
605mm
Moisture idx (CMI)
-0,14
Runoff
341mm/an
PET
701mm
AET
499mm
Mean slope
1,3°
Water table
88cm
Forest
0%
Crops
21%
Urban
25%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)