HydroBASINS lev08 watershed · #2080475400
Bassin de Isar
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 3 administrative regions : Bad Tölz-Wolfratshausen, München, München (Kreisfreie Stadt)
Sub-basin area
219,7km²
Upstream area
2 939,7km²
Discharge
70,19m³/s
Mean elev.
564m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Isar1702 km²
- Bassin de Loisach1018 km²
3 dept-equivalent regions (GADM L2)
- 108.2 km²49.1% of basin
- 86.1 km²39.1% of basin
- 26.0 km²11.8% of basin
21 intersecting protected areas
Landscape Protection Area
30.08 km² overlap
Oberes Isartal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.34 km² overlap
Landscape Protection Area
19.71 km² overlap
Landscape Protection Area
7.80 km² overlap
Landscape Protection Area
7.38 km² overlap
Heideflächen und Lohwälder nördlich von München
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.24 km² overlap
Nature Reserve
5.17 km² overlap
Landscape Protection Area
4.39 km² overlap
Isarauen von Unterföhring bis Landshut
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.05 km² overlap
12 more protected areassorted by overlap area
Südliche Fröttmaninger Heide
IUCN IVNature Reserve
3.47 km² overlap
Landscape Protection Area
1.87 km² overlap
Panzerwiese und Hartelholz
IUCN IVNature Reserve
1.79 km² overlap
LSG Schönberg in den Gemeinden Deining und Egling, jetzt Egling, Landkreis Bad Tölz-Wolfratshausen
IUCN VLandscape Protection Area
1.63 km² overlap
Gebiet um das Kloster Warnberg mit anschließenden Waldstücken in Richtung Forstenried und Solln
IUCN VLandscape Protection Area
1.07 km² overlap
Moore zwischen Dietramszell und Deining
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.44 km² overlap
Landscape Protection Area
0.20 km² overlap
LSG "Münchner Norden im Bereich der Gemeinden Garching bei München, Ober- und Unterschleißheim"
IUCN VLandscape Protection Area
0.20 km² overlap
Landscape Protection Area
0.18 km² overlap
Landscape Protection Area
0.17 km² overlap
Loisach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Fledermaus-Kolonien im Südwesten Oberbayerns
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 320 distinct species · 227 255 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Isar : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 6 types (connectance 14.5%, 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°
7,9°C
Annual rain
946mm
Moisture idx (CMI)
0,19
Runoff
562mm/an
PET
770mm
AET
698mm
Mean slope
1,8°
Water table
100cm
Forest
39%
Crops
7%
Urban
62%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)