HydroBASINS lev08 watershed · #2080390360
Bassin de Maas
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 10 administrative regions across 2 countries : Beesel, Bergen, Horst aan de Maas, Kleve, Leudal +5
Sub-basin area
409km²
Upstream area
26 196km²
Discharge
320,43m³/s
Mean elev.
27m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Swalm267 km²
- Bassin de Tungelroysche Beek150 km²
10 dept-equivalent regions (GADM L2)
- 113.0 km²27.5% of basin
- 86.6 km²21.1% of basin
- Kleve67.9 km²16.5% of basin
- 51.2 km²12.5% of basin
- 30.7 km²7.5% of basin
- 25.6 km²6.2% of basin
- Viersen23.6 km²5.8% of basin
- 10.3 km²2.5% of basin
30 intersecting protected areas
NNN-LI
IUCN Not AssignedNature Reserves owned by professional nature management organizations
95.55 km² overlap
Maasduinen
IUCN IVNature Conservation Act
26.91 km² overlap
Maasduinen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
26.91 km² overlap
Vogelschutzgebiet 'Schwalm-Nette-Platte mit Grenzwald u. Meinweg'
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.36 km² overlap
Maasduinen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.06 km² overlap
De Maasduinen
IUCN IINational Park
16.85 km² overlap
LSG-Grenzwald
IUCN VLandscape Protection Area
8.42 km² overlap
LSG Straelener Veen
IUCN VLandscape Protection Area
7.94 km² overlap
Landscape Protection Area
6.76 km² overlap
21 more protected areassorted by overlap area
Wälder und Heiden bei Brüggen-Bracht
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.46 km² overlap
Landscape Protection Area
5.74 km² overlap
NSG Brachter Wald
IUCN IVNature Reserve
5.49 km² overlap
Landscape Protection Area
4.89 km² overlap
LSG Westerbroek
IUCN VLandscape Protection Area
4.32 km² overlap
Landscape Protection Area
3.22 km² overlap
Landscape Protection Area
2.70 km² overlap
NSG Heronger Heide
IUCN IVNature Reserve
2.09 km² overlap
NSG Schlucht
IUCN IVNature Reserve
1.30 km² overlap
Landscape Protection Area
1.29 km² overlap
NSG Venloer Heide
IUCN IVNature Reserve
1.21 km² overlap
NSG Heidemoore
IUCN IVNature Reserve
1.12 km² overlap
LSG In het Venn
IUCN VLandscape Protection Area
0.82 km² overlap
NSG Hangmoor Damerbruch
IUCN IVNature Reserve
0.74 km² overlap
Nature Reserve
0.74 km² overlap
Krickenbecker Seen - Kl. De Witt-See
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.43 km² overlap
LSG Fossa Eugeniana
IUCN VLandscape Protection Area
0.40 km² overlap
LSG-Venloer Heide
IUCN VLandscape Protection Area
0.30 km² overlap
NSG Huehnerkamp
IUCN IVNature Reserve
0.27 km² overlap
Hangmoor Damerbruch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.09 km² overlap
NSG Holter Bruch
IUCN IVNature Reserve
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 992 distinct species · 1 032 833 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Maas : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 6 bulles famille, 69 interactions GloBI documentées sur 5 types (connectance 10.4%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,9°C
Annual rain
772mm
Moisture idx (CMI)
0,05
Runoff
384mm/an
PET
735mm
AET
568mm
Mean slope
0,6°
Water table
42cm
Forest
9%
Crops
33%
Urban
35%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)