HydroBASINS lev08 watershed · #2080460170
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 7 administrative regions : Deggendorf, Dingolfing-Landau, Freising, Kelheim, Landshut +2
Sub-basin area
1 205,4km²
Upstream area
9 102,6km²
Discharge
170,01m³/s
Mean elev.
409m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sempt797 km²
- Bassin de Mühlbach9 km²
7 dept-equivalent regions (GADM L2)
- 496.8 km²41.1% of basin
- 432.3 km²35.8% of basin
- 142.6 km²11.8% of basin
- 66.2 km²5.5% of basin
- 46.3 km²3.8% of basin
- 19.8 km²1.6% of basin
- 5.1 km²0.4% of basin
30 intersecting protected areas
Landscape Protection Area
26.33 km² overlap
Landscape Protection Area
17.66 km² overlap
Isarmündung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.17 km² overlap
Isarmündung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.18 km² overlap
Untere Isar zwischen Landau und Plattling
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.04 km² overlap
Wiesenbrütergebiete im Unteren Isartal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.86 km² overlap
Untere Isar oberhalb Mündung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.70 km² overlap
Isarmündung
IUCN IVNature Reserve
7.75 km² overlap
Isarauen von Unterföhring bis Landshut
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.73 km² overlap
21 more protected areassorted by overlap area
Leiten der Unteren Isar
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.55 km² overlap
Unteres Isartal zwischen Niederviehbach und Landau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.22 km² overlap
Naturschutzgebiet 'Vogelfreistätte Mittlere Isarstauseen'
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.98 km² overlap
Nature Reserve
2.98 km² overlap
Nature Reserve
2.79 km² overlap
Mettenbacher, Grießenbacher und Königsauer Moos (Unteres Isartal)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
LSG "Altheimer Stausee"
IUCN VLandscape Protection Area
2.20 km² overlap
Schutz von Landschaftsteilen der Isar-Hangleiten zwischen Schweinbachtal und der geplanten BAB A93
IUCN VLandscape Protection Area
1.74 km² overlap
Landscape Protection Area
1.09 km² overlap
Isarauen bei Goben
IUCN IVNature Reserve
0.75 km² overlap
Landscape Protection Area
0.73 km² overlap
Nature Reserve
0.51 km² overlap
Landscape Protection Area
0.49 km² overlap
Bucher Graben
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.47 km² overlap
Nature Reserve
0.37 km² overlap
Klötzlmühlbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.33 km² overlap
Landscape Protection Area
0.27 km² overlap
Landscape Protection Area
0.24 km² overlap
Landscape Protection Area
0.23 km² overlap
Landscape Protection Area
0.17 km² overlap
Habitate der Gelbbauchunke im Landkreis Dingolfing-Landau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 972 distinct species · 257 294 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 23 espèces reliées par 104 interactions GloBI sur 4 types (connectance 21.0%, filtre Serrano α=0.2). 9 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°
8,1°C
Annual rain
824mm
Moisture idx (CMI)
0,05
Runoff
403mm/an
PET
783mm
AET
638mm
Mean slope
2,7°
Water table
134cm
Forest
13%
Crops
65%
Urban
9%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)