HydroBASINS lev08 watershed · #2080405870
Bassin de Herk
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 : Limburg, Liège, Vlaams Brabant
Sub-basin area
806,3km²
Upstream area
806,5km²
Discharge
9,53m³/s
Mean elev.
62m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 806.2 km²99.6% of basin
- 2.7 km²0.3% of basin
- 0.4 km²0.0% of basin
30 intersecting protected areas
Valleien van de Laambeek, Zonderikbeek, Slangebeek en Roosterbeek met vijvergebieden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.20 km² overlap
Vijvercomplex van Midden Limburg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
22.02 km² overlap
De Demervallei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.47 km² overlap
Het Vijvergebied Midden-Limburg
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
18.05 km² overlap
Bossen en kalkgraslanden van Haspengouw
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.73 km² overlap
Mangelbeek en heide- en vengebieden tussen Houthalen en Gruitrode
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.16 km² overlap
De Teut-Tenhaagdoornheide
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
14.14 km² overlap
Nature management plan type 4 (Flemish Region)
12.33 km² overlap
Houthalen-Helchteren, Meeuwen-Gruitrode en Peer
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.20 km² overlap
21 more protected areassorted by overlap area
NBP-LI-20-0250 type 2
IUCN VINature management plan type 2 (Flemish Region)
10.83 km² overlap
NBP-LI-19-0111 type 2
IUCN VINature management plan type 2 (Flemish Region)
9.28 km² overlap
De Herk
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
9.05 km² overlap
De Beekvalleien overgang Kempen-Haspengouw
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
8.54 km² overlap
NBP-LI-20-0177 type 2
IUCN VINature management plan type 2 (Flemish Region)
8.43 km² overlap
Bokrijk en omgeving
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.85 km² overlap
De Mombeek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
7.24 km² overlap
Demervallei
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.27 km² overlap
NBP-LI-23-0006 type 4
IUCN IVNature management plan type 4 (Flemish Region)
6.02 km² overlap
Overgang Kempen-Haspengouw
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.71 km² overlap
De Maten
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.66 km² overlap
De Mangel- en Winterbeek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
5.59 km² overlap
Het Schulensbroek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
5.42 km² overlap
De Maten
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.36 km² overlap
NBP-LI-20-0008 type 4
IUCN IVNature management plan type 4 (Flemish Region)
5.15 km² overlap
De Bovenloop Demer en Winterbeek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
4.54 km² overlap
Jekervallei en bovenloop van de Demervallei
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.36 km² overlap
NBP-LI-20-0014 type 4
IUCN IVNature management plan type 4 (Flemish Region)
4.26 km² overlap
463 Afbakening van de gebieden van de natuurlijke en agrarische structuur regio Haspengouw-Voeren -
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
4.07 km² overlap
De Hoge Kempen
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
3.81 km² overlap
NBP-LI-20-0148 type 2
IUCN VINature management plan type 2 (Flemish Region)
3.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 525 distinct species · 1 994 173 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Herk : 37 espèces + 6 bulles famille, 105 interactions GloBI documentées sur 5 types (connectance 11.6%, 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°
9,7°C
Annual rain
814mm
Moisture idx (CMI)
0,10
Runoff
375mm/an
PET
729mm
AET
575mm
Mean slope
1,0°
Water table
88cm
Forest
16%
Crops
26%
Urban
46%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)