HydroBASINS lev08 watershed · #2080476980

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 9 administrative regions across 2 countries : Amstetten, Freistadt, Gmünd, Linz Land, Melk +4

Pfafstetter: 22797050

Sub-basin area

1 861,3km²

Upstream area

92 117,3km²

Discharge

1 746,24m³/s

Mean elev.

567m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Steinbründl65 km²

▲ Receives from 2 basins

Bassin de Große Gusen573 km²
Bassin de Enns171 km²

9 dept-equivalent regions (GADM L2)

Freistadt
Oberösterreich · Austria
761.8 km²
40.8% of basin
Perg
Oberösterreich · Austria
538.4 km²
28.8% of basin
Amstetten
Niederösterreich · Austria
306.8 km²
16.4% of basin
Melk
Niederösterreich · Austria
187.3 km²
10.0% of basin
Zwettl
Niederösterreich · Austria
50.6 km²
2.7% of basin
Gmünd
Niederösterreich · Austria
20.7 km²
1.1% of basin
Urfahr-Umgebung
Oberösterreich · Austria
0.9 km²
0.0% of basin
Linz Land
Oberösterreich · Austria
0.2 km²
0.0% of basin

1 moreFull L2 list

Český Krumlov0.1 km² · 0.0%

30 intersecting protected areas

Strudengau und Umgebung
IUCN V
Landscape Protection Area
93.86 km² overlap
Waldaist und Naarn
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
38.37 km² overlap
Strudengau - Nibelungengau
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
36.66 km² overlap
Waldviertel
IUCN Not Reported
Special Protection Area (Birds Directive)
21.33 km² overlap
Waldviertel ponds, peat bogs & floodplains
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
19.26 km² overlap
Machland Süd
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
16.70 km² overlap
Wiesengebiete im Freiwald
IUCN Not Reported
Special Protection Area (Birds Directive)
15.62 km² overlap
Machland Süd
IUCN Not Reported
Special Protection Area (Birds Directive)
12.27 km² overlap
Machland-Nord
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
11.43 km² overlap

21 more protected areassorted by overlap area

Naturpark Mühlviertel
IUCN V
Nature Park
10.33 km² overlap
Waldviertler Teich-, Heide- und Moorlandschaft
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
5.26 km² overlap
Wiesengebiete im Mühlviertel
IUCN Not Reported
Site of Community Importance (Habitats Directive)
4.22 km² overlap
Meloner Au
IUCN IV
Nature Reserve
1.36 km² overlap
Feldaisttal
IUCN V
Landscape Protection Area
0.68 km² overlap
Karlstifter Moore
IUCN IV
Nature Reserve
0.53 km² overlap
Nordwald
IUCN V
Nature Park
0.47 km² overlap
Großpertholz
IUCN V
Landscape Protection Area
0.29 km² overlap
Tanner Moor
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.18 km² overlap
Tanner Moor
IUCN IV
Nature Reserve
0.18 km² overlap
Bumau
IUCN IV
Nature Reserve
0.16 km² overlap
Novohradské hory
IUCN Not Reported
Special Protection Area (Birds Directive)
0.16 km² overlap
Niederösterreichische Alpenvorlandflüsse
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.14 km² overlap
Insel Wörth
IUCN IV
Nature Reserve
0.13 km² overlap
Roten Auen
IUCN IV
Nature Reserve
0.10 km² overlap
Hochau
IUCN IV
Nature Reserve
0.07 km² overlap
Moor bei Mitterhölbling
IUCN IV
Nature Reserve
0.04 km² overlap
Pohoří na Šumavě
IUCN IV
Nature Monument
0.04 km² overlap
Stodůlecký vrch
IUCN IV
Nature Monument
0.04 km² overlap
Pohoří na Šumavě
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.03 km² overlap
Moorwiesen
IUCN IV
Nature Reserve
0.03 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

9 196 distinct species · 309 115 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Donau : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 4 types (connectance 13.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.130

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

7,3°C

Annual rain

892mm

Moisture idx (CMI)

0,10

Runoff

488mm/an

PET

793mm

AET

673mm

Mean slope

6,7°

Water table

358cm

Forest

83%

Crops

16%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)