HydroBASINS lev08 watershed · #2080386370
Bassin de Ahse
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 : Hamm, Soest
Sub-basin area
429,5km²
Upstream area
429,6km²
Discharge
5,25m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Soest367.8 km²85.3% of basin
- Hamm63.3 km²14.7% of basin
30 intersecting protected areas
Vogelschutzgebiet Hellwegbörde
IUCN Not ReportedSpecial Protection Area (Birds Directive)
175.84 km² overlap
Landscape Protection Area
38.15 km² overlap
LSG-Werl Sued
IUCN VLandscape Protection Area
6.16 km² overlap
LSG-Muehlenbach
IUCN VLandscape Protection Area
4.97 km² overlap
LSG-Zengerott
IUCN VLandscape Protection Area
4.51 km² overlap
LSG-Bewerbach
IUCN VLandscape Protection Area
4.16 km² overlap
VSG Lippeaue zwischen Hamm und Lippstadt mit Ahsewiesen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.73 km² overlap
Ahsewiesen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.72 km² overlap
Landscape Protection Area
3.50 km² overlap
21 more protected areassorted by overlap area
NSG Waelder um Welver
IUCN IVNature Reserve
3.10 km² overlap
Wälder um Welver
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.81 km² overlap
LSG-Am Welveraner Wald
IUCN VLandscape Protection Area
2.79 km² overlap
LSG-Soestbach-Niederung
IUCN VLandscape Protection Area
2.72 km² overlap
LSG-Ahse/Hagen
IUCN VLandscape Protection Area
2.42 km² overlap
Nature Reserve
2.33 km² overlap
LSG-Pentling/Proebsting
IUCN VLandscape Protection Area
2.08 km² overlap
LSG-Werl West
IUCN VLandscape Protection Area
2.00 km² overlap
Landscape Protection Area
2.00 km² overlap
LSG-Einecker Voehde
IUCN VLandscape Protection Area
1.97 km² overlap
NSG Ahsewiesen <LP>
IUCN IVNature Reserve
1.95 km² overlap
NSG Ahse bei Dinker
IUCN IVNature Reserve
1.93 km² overlap
Büecke und Hiddingser Schledde
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.91 km² overlap
LSG-Allen
IUCN VLandscape Protection Area
1.89 km² overlap
NSG Ahsewiesen <VO>
IUCN IVNature Reserve
1.79 km² overlap
LSG-Gerlinger Grund
IUCN VLandscape Protection Area
1.75 km² overlap
LSG-Ahse-Ost
IUCN VLandscape Protection Area
1.56 km² overlap
Landscape Protection Area
1.47 km² overlap
LSG-Dinker Berg
IUCN VLandscape Protection Area
1.40 km² overlap
LSG-Am Frohnholz
IUCN VLandscape Protection Area
1.39 km² overlap
LSG-Pilsholz/Huels
IUCN VLandscape Protection Area
1.33 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 730 distinct species · 90 573 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Ahse : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 129 interactions GloBI sur 6 types (connectance 19.4%, filtre Serrano α=0.2). 8 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°
9,2°C
Annual rain
831mm
Moisture idx (CMI)
0,15
Runoff
393mm/an
PET
709mm
AET
567mm
Mean slope
1,1°
Water table
62cm
Forest
1%
Crops
70%
Urban
15%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)