HydroBASINS lev08 watershed · #2080385340
Bassin de Oude Leij
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 12 administrative regions across 2 countries : 's-Hertogenbosch, Alphen-Chaam, Antwerpen, Baarle-Nassau, Goirle +7
Sub-basin area
328,7km²
Upstream area
328,7km²
Discharge
4,76m³/s
Mean elev.
16m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
12 dept-equivalent regions (GADM L2)
- 75.3 km²22.8% of basin
- Antwerpen73.5 km²22.3% of basin
- 34.4 km²10.4% of basin
- 32.3 km²9.8% of basin
- 30.4 km²9.2% of basin
- 16.0 km²4.8% of basin
- 15.9 km²4.8% of basin
- 15.8 km²4.8% of basin
4 moreFull L2 list
- Baarle-Nassau14.9 km² · 4.5%
- Loon op Zand9.2 km² · 2.8%
- 's-Hertogenbosch7.9 km² · 2.4%
- Reusel-De Mierden4.2 km² · 1.3%
26 intersecting protected areas
NNN-NB
IUCN Not AssignedNature Reserves owned by professional nature management organizations
88.49 km² overlap
Loonse en Drunense Duinen & Leemkuilen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.43 km² overlap
Nature Conservation Act
29.43 km² overlap
De Loonse en Drunense Duinen
IUCN IINational Park
28.63 km² overlap
Arendonk, Merksplas, Oud-Turnhout, Ravels en Turnhout
IUCN Not ReportedSpecial Protection Area (Birds Directive)
24.35 km² overlap
Nature Conservation Act
5.42 km² overlap
Vlijmens Ven, Moerputten & Bossche Broek
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.42 km² overlap
Regte Heide & Riels Laag
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.38 km² overlap
Regte Heide & Riels Laag
IUCN IVNature Conservation Act
5.38 km² overlap
17 more protected areassorted by overlap area
NBP-AN-19-0143 type 2
IUCN VINature management plan type 2 (Flemish Region)
4.46 km² overlap
Vennen, heiden en moerassen rond Turnhout
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.41 km² overlap
Kempenland-West
IUCN IVNature Conservation Act
3.33 km² overlap
Kempenland-West
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.33 km² overlap
NBP-AN-19-0138 type 2
IUCN VINature management plan type 2 (Flemish Region)
2.77 km² overlap
Nature Conservation Act
1.70 km² overlap
Kampina & Oisterwijkse Vennen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.70 km² overlap
BPMD-AN-09-0014
IUCN Not AssignedMilitary zones (Flemish Region)
1.53 km² overlap
NBP-AN-19-0138 type 3
IUCN IVNature management plan type 3 (Flemish Region)
1.21 km² overlap
NBP-AN-21-0001 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.08 km² overlap
De Ravelse vennen
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
1.02 km² overlap
NBP/AN/19/0150 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.97 km² overlap
NBP-AN-21-0022 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.67 km² overlap
NBP-AN-21-0001 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.34 km² overlap
NBP-AN-19-0101 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.30 km² overlap
NBP-AN-19-0138 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.05 km² overlap
Nature management plan type 4 (Flemish Region)
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 831 distinct species · 1 249 993 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 Oude Leij : 29 espèces + 6 bulles famille, 77 interactions GloBI documentées sur 4 types (connectance 12.9%, 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°
9,5°C
Annual rain
793mm
Moisture idx (CMI)
0,12
Runoff
452mm/an
PET
701mm
AET
546mm
Mean slope
0,4°
Water table
25cm
Forest
10%
Crops
26%
Urban
36%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)