HydroBASINS lev08 watershed · #2080454710
Bassin de Nagold
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 9 administrative regions : Böblingen, Calw, Enzkreis, Freudenstadt, Heilbronn +4
Sub-basin area
2 208,4km²
Upstream area
2 208,4km²
Discharge
27,98m³/s
Mean elev.
488m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Calw748.6 km²33.8% of basin
- Böblingen393.4 km²17.8% of basin
- Ludwigsburg389.4 km²17.6% of basin
- 339.3 km²15.3% of basin
- Freudenstadt186.5 km²8.4% of basin
- Pforzheim91.7 km²4.1% of basin
- Rastatt34.7 km²1.6% of basin
- Stuttgart28.2 km²1.3% of basin
1 moreFull L2 list
- Heilbronn3.6 km² · 0.2%
30 intersecting protected areas
Landscape Protection Area
136.23 km² overlap
Stromberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
84.09 km² overlap
Stromberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
80.30 km² overlap
Landscape Protection Area
53.33 km² overlap
Glemswald
IUCN VLandscape Protection Area
49.92 km² overlap
Nordschwarzwald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
48.59 km² overlap
Landscape Protection Area
43.57 km² overlap
Landscape Protection Area
36.83 km² overlap
Enztal bei Mühlacker
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.79 km² overlap
21 more protected areassorted by overlap area
Mittleres Murgtal
IUCN VLandscape Protection Area
27.86 km² overlap
Strohgäu und unteres Enztal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.62 km² overlap
Calwer Heckengäu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.64 km² overlap
Würm-Nagold-Pforte
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.45 km² overlap
Neuhausen-Biet
IUCN VLandscape Protection Area
19.28 km² overlap
Landscape Protection Area
18.53 km² overlap
Landscape Protection Area
17.91 km² overlap
Glemswald und Stuttgarter Bucht
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.65 km² overlap
Landscape Protection Area
15.65 km² overlap
Kleinenztal und Schwarzwaldrandplatten
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.56 km² overlap
Landscape Protection Area
14.26 km² overlap
Landscape Protection Area
12.62 km² overlap
Nagolder Heckengäu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.31 km² overlap
Landscape Protection Area
11.91 km² overlap
Glemswald
IUCN VLandscape Protection Area
11.87 km² overlap
Aidlingen
IUCN VLandscape Protection Area
11.28 km² overlap
Schönbuch
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.18 km² overlap
Strudelbachtal
IUCN VLandscape Protection Area
10.31 km² overlap
Landscape Protection Area
9.93 km² overlap
Kaltenbronner Enzhöhen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.89 km² overlap
Landscape Protection Area
8.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 459 distinct species · 291 725 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Nagold : 21 espèces reliées par 106 interactions GloBI sur 5 types (connectance 20.1%, 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°
8,7°C
Annual rain
841mm
Moisture idx (CMI)
0,06
Runoff
400mm/an
PET
781mm
AET
631mm
Mean slope
5,7°
Water table
318cm
Forest
50%
Crops
21%
Urban
25%
Protected
33%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)