HydroBASINS lev08 watershed · #2080375500
Bassin de IJssel
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 17 administrative regions across 2 countries : Aalten, Arnhem, Borken, Bronckhorst, Brummen +12
Sub-basin area
753,7km²
Upstream area
1 589,1km²
Discharge
16,83m³/s
Mean elev.
23m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bocholter Aa517 km²
- Bassin de Alte Aa318 km²
17 dept-equivalent regions (GADM L2)
- 127.7 km²16.9% of basin
- 79.8 km²10.5% of basin
- 77.1 km²10.2% of basin
- 76.1 km²10.1% of basin
- 75.9 km²10.0% of basin
- Borken75.4 km²10.0% of basin
- 58.6 km²7.7% of basin
- 55.4 km²7.3% of basin
9 moreFull L2 list
- Zevenaar41.3 km² · 5.5%
- Brummen30.5 km² · 4.0%
- Duiven21.2 km² · 2.8%
- Doesburg12.7 km² · 1.7%
- Oost Gelre7.3 km² · 1.0%
- Rozendaal6.1 km² · 0.8%
- Westervoort5.4 km² · 0.7%
- Arnhem4.2 km² · 0.6%
- Kleve1.8 km² · 0.2%
30 intersecting protected areas
NNN-GE
IUCN Not AssignedNature Reserves owned by professional nature management organizations
117.41 km² overlap
Veluwe
IUCN IVNature Conservation Act
35.64 km² overlap
Veluwe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
35.64 km² overlap
Veluwe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
35.64 km² overlap
Rijntakken
IUCN Not ReportedSpecial Protection Area (Birds Directive)
32.88 km² overlap
Rijntakken
IUCN IVNature Conservation Act
32.88 km² overlap
Veluwezoom
IUCN IINational Park
24.15 km² overlap
LSG Lohner Heide, Brink
IUCN VLandscape Protection Area
5.30 km² overlap
Landscape Protection Area
5.10 km² overlap
21 more protected areassorted by overlap area
Landscape Protection Area
4.75 km² overlap
Landscape Protection Area
4.36 km² overlap
Korenburgerveen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.21 km² overlap
Korenburgerveen
IUCN IVNature Conservation Act
4.21 km² overlap
Rijntakken
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.01 km² overlap
Landscape Protection Area
2.54 km² overlap
Landscape Protection Area
2.45 km² overlap
LSG Weseker Geest
IUCN VLandscape Protection Area
1.75 km² overlap
Landgoederen Brummen
IUCN IVNature Conservation Act
1.15 km² overlap
Landgoederen Brummen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.15 km² overlap
LSG Holthausen West
IUCN VLandscape Protection Area
1.00 km² overlap
Bekendelle
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.88 km² overlap
Bekendelle
IUCN IVNature Conservation Act
0.88 km² overlap
LSG Schlinge
IUCN VLandscape Protection Area
0.87 km² overlap
LSG Klostervenn
IUCN VLandscape Protection Area
0.83 km² overlap
NSG Reyerdingvenn
IUCN IVNature Reserve
0.75 km² overlap
LSG Sickinghook
IUCN VLandscape Protection Area
0.73 km² overlap
Nature Reserve
0.67 km² overlap
LSG Weseker Mark
IUCN VLandscape Protection Area
0.60 km² overlap
Landscape Protection Area
0.50 km² overlap
Wooldse Veen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
14 847 distinct species · 2 936 290 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,5°C
Annual rain
771mm
Moisture idx (CMI)
0,07
Runoff
370mm/an
PET
713mm
AET
554mm
Mean slope
0,5°
Water table
39cm
Forest
5%
Crops
26%
Urban
24%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)