HydroBASINS lev08 watershed · #2080474380

Bassin de Alz

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 across 2 countries : Altötting, Berchtesgadener Land, Kitzbühel, Kufstein, Rosenheim +2

35% lakePfafstetter: 22798060

Sub-basin area

2 270,4km²

Upstream area

2 270,4km²

Discharge

62,33m³/s

Mean elev.

860m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Türkenbach148 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

Traunstein
Bayern · Germany
1050.0 km²
46.1% of basin
Kitzbühel
Tirol · Austria
752.7 km²
33.1% of basin
Altötting
Bayern · Germany
206.4 km²
9.1% of basin
Rosenheim
Bayern · Germany
199.4 km²
8.8% of basin
Kufstein
Tirol · Austria
38.6 km²
1.7% of basin
Zell am See
Salzburg · Austria
24.6 km²
1.1% of basin
Berchtesgadener Land
Bayern · Germany
5.1 km²
0.2% of basin

30 intersecting protected areas

Schutz des Chiemsees, seiner Inseln und Ufergebiete in den Landkreisen Rosenheim und Traunstein als LSG ("Chiemsee-Schutzverordnung")
IUCN V
Landscape Protection Area
121.25 km² overlap
Chiemseegebiet mit Alz
IUCN Not Reported
Special Protection Area (Birds Directive)
103.76 km² overlap
Östliche Chiemgauer Alpen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
92.84 km² overlap
Naturschutzgebiet 'Östliche Chiemgauer Alpen'
IUCN Not Reported
Special Protection Area (Birds Directive)
91.31 km² overlap
Lake Chiemsee
IUCN V
Wetland of International Importance (Ramsar Site)
82.31 km² overlap
Chiemsee
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
81.41 km² overlap
Östliche Chiemgauer Alpen
IUCN IV
Nature Reserve
78.45 km² overlap
Landschaftsschutzgebiet Hefferthorn-Fellhorn-Sonnenberg
IUCN V
Landscape Protection Area
59.18 km² overlap
Landschaftsschutzgebiet Spertental-Rettenstein
IUCN V
Landscape Protection Area
40.42 km² overlap

21 more protected areassorted by overlap area

Moore südlich des Chiemsees
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
35.71 km² overlap
Geigelstein
IUCN Not Reported
Special Protection Area (Birds Directive)
32.07 km² overlap
Geigelstein und Achentaldurchbruch
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
32.07 km² overlap
Geigelstein
IUCN IV
Nature Reserve
31.39 km² overlap
Moore südlich des Chiemsees
IUCN Not Reported
Special Protection Area (Birds Directive)
27.20 km² overlap
Naturschutzgebiet Kaisergebirge
IUCN IV
Nature Reserve
24.78 km² overlap
Moorgebiet von Eggstätt-Hemhof bis Seeon
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
21.21 km² overlap
Moorgebiet von Eggstätt-Hemhof bis Seeon
IUCN Not Reported
Special Protection Area (Birds Directive)
20.13 km² overlap
Wilder Kaiser
IUCN Ib
Wetland of International Importance (Ramsar Site)
19.44 km² overlap
Schutz eines Landschaftsstreifens beiderseits der Bundesstraße 305 (Alpenstraße) im Abschnitt Zwing-Sichertsau und des Rauschberges
IUCN V
Landscape Protection Area
15.39 km² overlap
Mündung der Tiroler Achen
IUCN IV
Nature Reserve
12.64 km² overlap
Hochriesgebiet und Hangwälder im Aschauer Tal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
10.56 km² overlap
Eggstätt-Hemhofer Seenplatte
IUCN IV
Nature Reserve
10.23 km² overlap
LSG "Oberes Alztal"
IUCN V
Landscape Protection Area
9.98 km² overlap
Kendlmühlfilzen
IUCN IV
Nature Reserve
7.44 km² overlap
Untere Alz
IUCN IV
Nature Reserve
6.98 km² overlap
Inn und Untere Alz
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
6.67 km² overlap
Berchtesgadener Land
IUCN Not Assigned
biosphere reserve
5.13 km² overlap
Biosphärenreservat Berchtesgadener Land, Entwicklungszone
IUCN Not Assigned
biosphere reserve - transition area
4.51 km² overlap
Alz vom Chiemsee bis Altenmarkt
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.43 km² overlap
Moore im Salzach-Hügelland
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.90 km² overlap

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

Species present

9 820 distinct species · 444 379 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Alz : 31 espèces reliées par 98 interactions GloBI sur 5 types (connectance 13.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.139

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°

6,5°C

Annual rain

1 091mm

Moisture idx (CMI)

0,30

Runoff

843mm/an

PET

757mm

AET

718mm

Mean slope

12,1°

Water table

399cm

Forest

88%

Crops

Urban

Protected

19%

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