HydroBASINS lev08 watershed · #2080402060
Bassin de Schwalm
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 : Hersfeld-Rotenburg, Marburg-Biedenkopf, Schwalm-Eder-Kreis, Vogelsbergkreis, Waldeck-Frankenberg
Sub-basin area
1 232,1km²
Upstream area
1 232,3km²
Discharge
11,04m³/s
Mean elev.
326m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 826.6 km²66.8% of basin
- 298.8 km²24.2% of basin
- 55.9 km²4.5% of basin
- 54.7 km²4.4% of basin
- 0.6 km²0.0% of basin
30 intersecting protected areas
Knüll
IUCN Not ReportedSpecial Protection Area (Birds Directive)
177.49 km² overlap
Kellerwald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
74.89 km² overlap
Auenverbund Schwalm
IUCN VLandscape Protection Area
43.37 km² overlap
Landscape Protection Area
27.03 km² overlap
Schwalmniederung bei Schwalmstadt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.03 km² overlap
Oberes Rinnetal
IUCN VLandscape Protection Area
21.85 km² overlap
Vogelsberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.10 km² overlap
Hoher Keller
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.94 km² overlap
Aschenberg bei Remsfeld
IUCN VLandscape Protection Area
12.23 km² overlap
21 more protected areassorted by overlap area
Antrefftal
IUCN VLandscape Protection Area
9.36 km² overlap
Truppenübungsplatz Schwarzenborn
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.67 km² overlap
Waldgebiet südlich Densberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.39 km² overlap
Wald zwischen Romrod und Ober-Sorg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.32 km² overlap
Herrenwald östlich Stadtallendorf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.00 km² overlap
Wald zwischen Sachsenhausen und Strang
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.87 km² overlap
Landscape Protection Area
4.48 km² overlap
Wald nördlich Köddingen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.49 km² overlap
Efzepforte bei Homberg
IUCN VLandscape Protection Area
3.49 km² overlap
Borkener See
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.29 km² overlap
Borkener See
IUCN IVNature Reserve
3.29 km² overlap
Borkener See
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.29 km² overlap
Maculinea-Schutzgebiet bei Neustadt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.96 km² overlap
Standortübungsplatz Homberg/Efze
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.91 km² overlap
Landscape Protection Area
1.89 km² overlap
Der Küppel
IUCN VLandscape Protection Area
1.39 km² overlap
Nature Reserve
1.21 km² overlap
Roßbachtal bei Völkershain
IUCN IVNature Reserve
1.14 km² overlap
Roßbachtal bei Völkershain
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.14 km² overlap
Wälder nördlich Ohmes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.07 km² overlap
Talauen von Brenderwasser,Sengersbach,Wannbach- und Köpfelbachtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 363 distinct species · 87 974 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Schwalm : 20 espèces reliées par 103 interactions GloBI sur 6 types (connectance 20.8%, filtre Serrano α=0.2). 12 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°
8,3°C
Annual rain
739mm
Moisture idx (CMI)
0,01
Runoff
283mm/an
PET
726mm
AET
562mm
Mean slope
4,4°
Water table
304cm
Forest
16%
Crops
33%
Urban
4%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)