HydroBASINS lev08 watershed · #2080347770
Bassin de Weser
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 7 administrative regions : Bremen, Delmenhorst, Diepholz, Nienburg (Weser), Oldenburg +2
Sub-basin area
1 420,5km²
Upstream area
39 714km²
Discharge
379,62m³/s
Mean elev.
23m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Böhme1665 km²
- Bassin de Weser868 km²
7 dept-equivalent regions (GADM L2)
- Diepholz658.5 km²46.2% of basin
- 267.8 km²18.8% of basin
- 233.6 km²16.4% of basin
- BremenBremen · Germany188.9 km²13.2% of basin
- Delmenhorst62.4 km²4.4% of basin
- 14.1 km²1.0% of basin
- Nienburg (Weser)0.9 km²0.1% of basin
30 intersecting protected areas
Landscape Protection Area
29.51 km² overlap
Harpstedter Geest
IUCN VLandscape Protection Area
26.49 km² overlap
Landscape Protection Area
23.07 km² overlap
Niedervieland
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.94 km² overlap
Welsetal und Stühe
IUCN VLandscape Protection Area
10.33 km² overlap
Landscape Protection Area
9.05 km² overlap
Bremen 1968 39. Änderung
IUCN VLandscape Protection Area
8.13 km² overlap
Westermark
IUCN VLandscape Protection Area
6.99 km² overlap
Landscape Protection Area
6.76 km² overlap
21 more protected areassorted by overlap area
Landscape Protection Area
6.54 km² overlap
Landscape Protection Area
5.03 km² overlap
Werderland
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.01 km² overlap
Dehmse
IUCN VLandscape Protection Area
4.82 km² overlap
Delmetal zwischen Harpstedt und Delmenhorst
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.76 km² overlap
Landscape Protection Area
4.72 km² overlap
Landscape Protection Area
4.62 km² overlap
Niedervieland-Stromer Feldmark
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.25 km² overlap
Friedeholz
IUCN VLandscape Protection Area
4.15 km² overlap
Landscape Protection Area
4.12 km² overlap
Kladdinger Wiesen
IUCN IVNature Reserve
3.83 km² overlap
Nature Reserve
3.77 km² overlap
Landscape Protection Area
3.76 km² overlap
Werderland
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.63 km² overlap
Langenwisch - Emshoop
IUCN VLandscape Protection Area
3.51 km² overlap
Klosterbach
IUCN VLandscape Protection Area
3.28 km² overlap
Weseraue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.03 km² overlap
Ochtumniederung
IUCN VLandscape Protection Area
2.98 km² overlap
Landscape Protection Area
2.93 km² overlap
Freidorf
IUCN VLandscape Protection Area
2.76 km² overlap
Rutental
IUCN VLandscape Protection Area
2.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 237 distinct species · 202 672 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 Weser : 25 espèces reliées par 92 interactions GloBI sur 6 types (connectance 15.5%, filtre Serrano α=0.2). 10 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°
8,8°C
Annual rain
739mm
Moisture idx (CMI)
0,04
Runoff
411mm/an
PET
709mm
AET
550mm
Mean slope
0,5°
Water table
25cm
Forest
2%
Crops
41%
Urban
26%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)