HydroBASINS lev08 watershed · #2080405690
Bassin de Leie
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 4 administrative regions across 2 countries : Hainaut, Nord, Oost-Vlaanderen, West-Vlaanderen
Sub-basin area
687,1km²
Upstream area
3 365,4km²
Discharge
51,8m³/s
Mean elev.
25m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Canal de la Deûle870 km²
- Bassin de la Lys736 km²
4 dept-equivalent regions (GADM L2)
- 522.1 km²75.7% of basin
- 81.9 km²11.9% of basin
- 51.0 km²7.4% of basin
- 34.6 km²5.0% of basin
16 communes (GADM L5)Available for FRA, RWA
- Comines16.28 km²100% commune
- Halluin12.36 km²100% commune
- Roncq10.19 km²98% commune
- Linselles7.71 km²65% commune
- Bousbecque6.40 km²100% commune
- Tourcoing6.14 km²39% commune
- Neuville-en-Ferrain5.95 km²96% commune
- Wervicq-Sud5.02 km²100% commune
- Warneton4.20 km²100% commune
- Deûlémont3.33 km²33% commune
- Bondues1.44 km²11% commune
- Bailleul1.30 km²3% commune
- Quesnoy-sur-Deûle1.12 km²8% commune
- Saint-Jans-Cappel0.40 km²5% commune
- Mouvaux0.04 km²1% commune
- Frelinghien0.00 km²0% commune
30 intersecting protected areas
Westvlaams Heuvelland
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.43 km² overlap
De West-Vlaamse Leievallei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
3.08 km² overlap
NBP-OV-18-0028 type 3
IUCN IVNature management plan type 3 (Flemish Region)
2.28 km² overlap
De Spitaalsbossen
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
2.21 km² overlap
NBP-WV-23-0114 type 2
IUCN VINature management plan type 2 (Flemish Region)
1.70 km² overlap
De Ieperboog
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
1.09 km² overlap
Het West-Vlaams Heuvelland
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
1.05 km² overlap
NBP-WV-24-0101 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.91 km² overlap
NBP-WV-23-0114 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.87 km² overlap
21 more protected areassorted by overlap area
NBP-WV-23-0101 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.78 km² overlap
246 Landbouw-, natuur- en bosgebieden Bouvelobos, Hemsrode en steilrand van Moregem
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.64 km² overlap
Bossen van de Vlaamse Ardennen en andere Zuidvlaamse bossen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.62 km² overlap
NBP-WV-21-0012 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.57 km² overlap
NBP-OV-18-0028 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.49 km² overlap
Vallée de la Lys
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.46 km² overlap
Vallée de la Lys
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.46 km² overlap
NBP-WV-22-0127 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.46 km² overlap
NBP-OV-21-0007 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.43 km² overlap
NBP-WV-23-0103 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.41 km² overlap
NBP-WV-23-0116 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.22 km² overlap
NBP-WV-22-0162 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.21 km² overlap
De Vallei van de Kasselrijbeek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.19 km² overlap
NBP-WV-21-0219 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.14 km² overlap
NBP-WV-20-0009 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.13 km² overlap
Het Bouvelobos
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
0.13 km² overlap
NBP-OV-22-0250 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.13 km² overlap
NBP-OV-22-0247 type 3
IUCN IVNature management plan type 3 (Flemish Region)
0.13 km² overlap
NBP-WV-21-0012 type 4
IUCN IVNature management plan type 4 (Flemish Region)
0.10 km² overlap
Bronnen van het Heuvelland
IUCN IVNature management plan type 4 (Flemish Region)
0.10 km² overlap
NBP-OV-22-0249 type 2
IUCN VINature management plan type 2 (Flemish Region)
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 987 distinct species · 1 585 101 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Leie : 36 espèces + 6 bulles famille, 91 interactions GloBI documentées sur 5 types (connectance 10.6%, 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°
10,1°C
Annual rain
706mm
Moisture idx (CMI)
0,02
Runoff
456mm/an
PET
692mm
AET
528mm
Mean slope
0,7°
Water table
44cm
Forest
0%
Crops
44%
Urban
50%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)