HydroBASINS lev08 watershed · #2080468170
Bassin de Sempt
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 : Ebersberg, Erding, Freising, Landshut, Mühldorf am Inn +2
Sub-basin area
797,3km²
Upstream area
797,3km²
Discharge
14,21m³/s
Mean elev.
510m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 366.5 km²45.8% of basin
- 274.1 km²34.3% of basin
- 108.8 km²13.6% of basin
- 17.4 km²2.2% of basin
- 16.4 km²2.1% of basin
- 15.2 km²1.9% of basin
- 1.3 km²0.2% of basin
27 intersecting protected areas
Landscape Protection Area
74.69 km² overlap
Ebersberger und Großhaager Forst
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
30.22 km² overlap
Landscape Protection Area
15.54 km² overlap
Landscape Protection Area
14.44 km² overlap
Ismaninger Speichersee und Fischteiche
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.56 km² overlap
Wetland of International Importance (Ramsar Site)
9.33 km² overlap
Nördliches Erdinger Moos
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.60 km² overlap
Landscape Protection Area
2.93 km² overlap
Strogn mit Hammerbach und Köllinger Bächlein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.54 km² overlap
18 more protected areassorted by overlap area
Nature Reserve
1.92 km² overlap
Naturschutzgebiet 'Vogelfreistätte Mittlere Isarstauseen'
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.91 km² overlap
Isarauen von Unterföhring bis Landshut
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.91 km² overlap
Landscape Protection Area
1.62 km² overlap
Landscape Protection Area
1.26 km² overlap
Landscape Protection Area
0.88 km² overlap
Landscape Protection Area
0.78 km² overlap
Landscape Protection Area
0.70 km² overlap
NSG südlich der Ismaninger Fischteiche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.23 km² overlap
Gelbbauchunken-Habitate um Niedererlbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.18 km² overlap
Gräben und Niedermoorreste im Erdinger Moos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.11 km² overlap
Nature Reserve
0.10 km² overlap
Moorreste im Freisinger und im Erdinger Moos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.10 km² overlap
Nature Reserve
0.08 km² overlap
Landscape Protection Area
0.04 km² overlap
Landscape Protection Area
0.03 km² overlap
Aufgelassene Sandgrube östlich Riding
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Kastensee mit angrenzenden Kesselmooren
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 297 distinct species · 165 652 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Sempt : 21 espèces reliées par 106 interactions GloBI sur 5 types (connectance 17.8%, filtre Serrano α=0.2). 14 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
899mm
Moisture idx (CMI)
0,13
Runoff
562mm/an
PET
780mm
AET
681mm
Mean slope
1,2°
Water table
59cm
Forest
35%
Crops
56%
Urban
17%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)