HydroBASINS lev08 watershed · #2080470490
Bassin de Donau
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 6 administrative regions : Krems Land, Krems an der Donau Stadt, Melk, Sankt Pölten Land, Sankt Pölten Stadt +1
Sub-basin area
495,4km²
Upstream area
95 850,5km²
Discharge
1 833,68m³/s
Mean elev.
447m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Pielach590 km²
- Bassin de Weitenbach247 km²
6 dept-equivalent regions (GADM L2)
- 274.3 km²55.2% of basin
- 105.1 km²21.2% of basin
- Melk87.6 km²17.6% of basin
- 15.0 km²3.0% of basin
- 11.9 km²2.4% of basin
- 3.0 km²0.6% of basin
21 intersecting protected areas
Wachau und Umgebung
IUCN VLandscape Protection Area
333.83 km² overlap
Wachau - Jauerling
IUCN Not ReportedSpecial Protection Area (Birds Directive)
181.18 km² overlap
Wachau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
158.12 km² overlap
Jauerling-Wachau
IUCN VNature Park
85.96 km² overlap
Waldviertel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.54 km² overlap
Kamp- und Kremstal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.40 km² overlap
Waldviertler Teich-, Heide- und Moorlandschaft
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.42 km² overlap
Landscape Protection Area
1.78 km² overlap
Steinige Ries
IUCN IVNature Reserve
0.74 km² overlap
12 more protected areassorted by overlap area
Gochelberg-Toter Berg
IUCN IVNature Reserve
0.64 km² overlap
Pritzenau
IUCN IVNature Reserve
0.43 km² overlap
Kamp- und Kremstal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.37 km² overlap
Pielachtal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.31 km² overlap
Niederösterreichische Alpenvorlandflüsse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.25 km² overlap
Grimsinger Au
IUCN IVNature Reserve
0.22 km² overlap
Buchberg
IUCN IVNature Reserve
0.21 km² overlap
Schönbühler Insel
IUCN IVNature Reserve
0.21 km² overlap
Höhereck
IUCN IVNature Reserve
0.11 km² overlap
Gurhofgraben
IUCN IVNature Reserve
0.07 km² overlap
Tullnerfelder Donau-Auen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.01 km² overlap
Pielachmündung-Steinwand
IUCN IVNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 687 distinct species · 60 772 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Donau : 26 espèces reliées par 124 interactions GloBI sur 5 types (connectance 18.6%, 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°
7,9°C
Annual rain
751mm
Moisture idx (CMI)
-0,07
Runoff
430mm/an
PET
808mm
AET
620mm
Mean slope
9,3°
Water table
352cm
Forest
74%
Crops
21%
Urban
2%
Protected
67%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)