HydroBASINS lev08 watershed · #2080441290
Bassin de Neckar
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 : Bergstraße, Heidelberg, Heilbronn, Karlsruhe, Mannheim +4
Sub-basin area
1 690,1km²
Upstream area
13 945,8km²
Discharge
163,95m³/s
Mean elev.
291m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Jagst1835 km²
- Bassin de Neckar4 km²
9 dept-equivalent regions (GADM L2)
- 605.0 km²35.7% of basin
- 402.5 km²23.7% of basin
- 215.5 km²12.7% of basin
- 162.2 km²9.6% of basin
- 151.5 km²8.9% of basin
- Heidelberg91.0 km²5.4% of basin
- Mannheim57.9 km²3.4% of basin
- 6.9 km²0.4% of basin
1 moreFull L2 list
- Miltenberg3.1 km² · 0.2%
30 intersecting protected areas
Südlicher Odenwald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
66.75 km² overlap
Neckartal II - Eberbach
IUCN VLandscape Protection Area
63.61 km² overlap
Landscape Protection Area
63.21 km² overlap
Odenwald
IUCN VLandscape Protection Area
59.89 km² overlap
Odenwald bei Hirschhorn
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
52.82 km² overlap
Neckartal III
IUCN VLandscape Protection Area
46.96 km² overlap
Landscape Protection Area
46.10 km² overlap
Bergstraße - Mitte
IUCN VLandscape Protection Area
45.31 km² overlap
Landscape Protection Area
41.00 km² overlap
21 more protected areassorted by overlap area
Odenwald Eberbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.90 km² overlap
Steinachtal und Kleiner Odenwald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.85 km² overlap
Bergstraße-Nord
IUCN VLandscape Protection Area
24.23 km² overlap
Nördlicher Kraichgau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.16 km² overlap
Landscape Protection Area
20.20 km² overlap
Elzbachtal
IUCN VLandscape Protection Area
16.02 km² overlap
Odenwald Brombachtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.74 km² overlap
Neckartal und Wald Obrigheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.22 km² overlap
Bauland Mosbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.56 km² overlap
Elzbachtal und Odenwald Neckargerach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.35 km² overlap
Unteres Neckartal bei Hirschhorn
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.67 km² overlap
Forehahi
IUCN VLandscape Protection Area
8.35 km² overlap
Heuchelberg und östlicher Kraichgau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.15 km² overlap
Wälder der südlichen hessischen Oberrheinebene
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.13 km² overlap
Landscape Protection Area
7.77 km² overlap
Landscape Protection Area
6.30 km² overlap
Bergstraße - Mitte
IUCN VLandscape Protection Area
6.19 km² overlap
Sandgebiete zwischen Mannheim und Sandhausen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.99 km² overlap
Unterer Dossenwald
IUCN VLandscape Protection Area
5.88 km² overlap
Odenwald bei Schriesheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.72 km² overlap
Landscape Protection Area
4.62 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 227 distinct species · 311 822 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Neckar : 24 espèces reliées par 93 interactions GloBI sur 6 types (connectance 15.6%, filtre Serrano α=0.2). 11 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°
9,5°C
Annual rain
725mm
Moisture idx (CMI)
-0,09
Runoff
310mm/an
PET
800mm
AET
588mm
Mean slope
6,6°
Water table
326cm
Forest
50%
Crops
23%
Urban
20%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)