HydroBASINS lev08 watershed · #2080405610
Bassin de Mandel
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 2 administrative regions : Oost-Vlaanderen, West-Vlaanderen
Sub-basin area
323,2km²
Upstream area
323,2km²
Discharge
4,75m³/s
Mean elev.
21m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 315.8 km²97.3% of basin
- 8.6 km²2.7% of basin
11 intersecting protected areas
Het Ardooieveld
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.57 km² overlap
Bossen en heiden van zandig Vlaanderen: oostelijk deel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.53 km² overlap
NBP-WV-22-0244 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.48 km² overlap
NBP-WV-24-0100 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.44 km² overlap
De Vallei van de Zeverenbeek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.43 km² overlap
Klei van Ieper en Maldegem Klei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.35 km² overlap
De Mandelhoek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.30 km² overlap
NBP-WV-22-0133 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.28 km² overlap
NBP-WV-20-0003 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.24 km² overlap
2 more protected areassorted by overlap area
Zeverenbeekvallei
IUCN IVNature management plan type 4 (Flemish Region)
0.22 km² overlap
NBP-OV-20-0136 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 255 distinct species · 203 000 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Mandel : 24 espèces + 8 bulles famille, 79 interactions GloBI documentées sur 4 types (connectance 15.9%, filtre Serrano α=0.2). Les 8 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°
10,1°C
Annual rain
719mm
Moisture idx (CMI)
0,07
Runoff
462mm/an
PET
672mm
AET
522mm
Mean slope
0,5°
Water table
27cm
Forest
0%
Crops
45%
Urban
44%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)