HydroBASINS lev08 watershed · #2080406030
Bassin de Velpe
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 5 administrative regions : Brabant Wallon, Limburg, Liège, Namur, Vlaams Brabant
Sub-basin area
934,5km²
Upstream area
934,7km²
Discharge
11,3m³/s
Mean elev.
80m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 403.7 km²43.0% of basin
- 270.9 km²28.9% of basin
- 182.0 km²19.4% of basin
- 77.7 km²8.3% of basin
- 3.5 km²0.4% of basin
30 intersecting protected areas
Bossen en kalkgraslanden van Haspengouw
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.63 km² overlap
NBP-VB-18-0014 type 4
IUCN IVNature management plan type 4 (Flemish Region)
3.93 km² overlap
NBP-VB-23-0021 type 4
IUCN IVNature management plan type 4 (Flemish Region)
2.77 km² overlap
Nieuwenhoven-Duras
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
2.71 km² overlap
De Hoegaardse valleien
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
2.61 km² overlap
NBP-VB-21-0281 type 3
IUCN IVNature management plan type 3 (Flemish Region)
2.07 km² overlap
De Velpevallei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
1.95 km² overlap
Extended forest management plan (Flemish Region)
1.64 km² overlap
NBP-VB-21-0326 type 4
IUCN IVNature management plan type 4 (Flemish Region)
1.60 km² overlap
21 more protected areassorted by overlap area
Het Vinne
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
1.55 km² overlap
NBP-LI-20-0181 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.44 km² overlap
NBP-LI-22-0242 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.39 km² overlap
NBP-LI-19-0016 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.25 km² overlap
NBP-VB-23-0021 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.12 km² overlap
NBP-VB-21-0319 type 4
IUCN IVNature management plan type 4 (Flemish Region)
1.09 km² overlap
NBP-VB-23-0021 type 3
IUCN IVNature management plan type 3 (Flemish Region)
1.02 km² overlap
De Demervallei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.99 km² overlap
NBP-VB-21-0290 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.85 km² overlap
De Getevallei te Geetbets
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.75 km² overlap
De Zuurbemde
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.63 km² overlap
Het Heibos-Schrabaardebos
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.57 km² overlap
Tienbunders
IUCN IVNature management plan type 4 (Flemish Region)
0.56 km² overlap
Het Klein en Groot Begijnbos
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.52 km² overlap
Valleien van de Winge en de Motte met valleihellingen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.44 km² overlap
NBP-VB-21-0328 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.31 km² overlap
Snoekengracht
IUCN IVNature management plan type 4 (Flemish Region)
0.31 km² overlap
NBP-LI-20-0008 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.31 km² overlap
NBP-VB-22-0202 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.30 km² overlap
Meldertbos
IUCN IVNature management plan type 4 (Flemish Region)
0.29 km² overlap
NBP-VB-21-0025 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 858 distinct species · 1 187 585 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 Velpe : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 113 interactions GloBI sur 5 types (connectance 17.9%, filtre Serrano α=0.2). 14 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°
9,8°C
Annual rain
816mm
Moisture idx (CMI)
0,09
Runoff
383mm/an
PET
745mm
AET
580mm
Mean slope
1,1°
Water table
56cm
Forest
1%
Crops
64%
Urban
16%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)