HydroBASINS lev08 watershed · #2080457550
Bassin de Allachbach
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 : Straubing, Straubing-Bogen
Sub-basin area
148,8km²
Upstream area
37 046,6km²
Discharge
480,39m³/s
Mean elev.
341m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Große Laber868 km²
- Bassin de Donau760 km²
2 dept-equivalent regions (GADM L2)
- 92.9 km²62.2% of basin
- 56.4 km²37.8% of basin
10 intersecting protected areas
LSG "Bayerischer Wald"
IUCN VLandscape Protection Area
15.19 km² overlap
Donau zwischen Straubing und Vilshofen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.58 km² overlap
Donau zwischen Regensburg und Straubing
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.80 km² overlap
Donau und Altwässer zwischen Regensburg und Straubing
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.41 km² overlap
Polder Straubing
IUCN VLandscape Protection Area
4.23 km² overlap
Donauauen zwischen Straubing und Vilshofen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.08 km² overlap
Öberauer Donauschleife
IUCN IVNature Reserve
2.80 km² overlap
Trockenhänge am Donaurandbruch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Nature Reserve
0.15 km² overlap
1 more protected areassorted by overlap area
Landscape Protection Area
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 804 distinct species · 26 565 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 Allachbach : 25 espèces reliées par 99 interactions GloBI sur 3 types (connectance 21.3%, filtre Serrano α=0.2). 6 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
752mm
Moisture idx (CMI)
-0,05
Runoff
346mm/an
PET
791mm
AET
607mm
Mean slope
0,9°
Water table
54cm
Forest
7%
Crops
80%
Urban
17%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)