HydroBASINS lev08 watershed · #2080501880
Bassin de Lorze
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 : Affoltern, Gersau, Küssnacht, Luzern, Muri +2
Sub-basin area
287,8km²
Upstream area
287,9km²
Discharge
9,5m³/s
Mean elev.
663m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- ZugZug · Switzerland183.1 km²63.5% of basin
- SchwyzSchwyz · Switzerland50.2 km²17.4% of basin
- AffolternZürich · Switzerland25.1 km²8.7% of basin
- KüssnachtSchwyz · Switzerland16.3 km²5.6% of basin
- 12.8 km²4.4% of basin
- GersauSchwyz · Switzerland1.0 km²0.3% of basin
- Muri0.1 km²0.0% of basin
30 intersecting protected areas
Reusstal
IUCN Not AssignedEmerald Sites
3.38 km² overlap
Reusstal
IUCN Not ReportedEmerald Network
3.38 km² overlap
Lorzentobel
IUCN Not AssignedForest Reserves
1.66 km² overlap
Sod-Chäsgaden
IUCN Not AssignedForest Reserves
1.27 km² overlap
Rüss-Spitz
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
1.22 km² overlap
Rüss-Spitz/Wannhüseren
IUCN IVFederal Inventory of Fenlands of National Importance
1.18 km² overlap
Rämsel-Hafenbach
IUCN Not AssignedForest Reserves
1.03 km² overlap
Vorderes Hürital
IUCN Not AssignedForest Reserves
1.02 km² overlap
Türlistock
IUCN Not AssignedForest Reserves
0.85 km² overlap
21 more protected areassorted by overlap area
Eigenried
IUCN IVFederal Inventory of Fenlands of National Importance
0.49 km² overlap
Brämenegg
IUCN Not AssignedForest Reserves
0.46 km² overlap
Oberalpli
IUCN Not AssignedForest Reserves
0.41 km² overlap
Baarburg
IUCN Not AssignedForest Reserves
0.37 km² overlap
Federal Inventory of Raised and Transitional Mires of National Importance
0.37 km² overlap
Eigenried
IUCN Not AssignedForest Reserves
0.33 km² overlap
Littibachtobel
IUCN Not AssignedForest Reserves
0.31 km² overlap
Ober Schachen-Rüssspitz
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.30 km² overlap
Hansenbörter
IUCN Not AssignedForest Reserves
0.29 km² overlap
Steinhauser Weiher
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.28 km² overlap
Rieter/Sagen/Neselen
IUCN IVFederal Inventory of Fenlands of National Importance
0.26 km² overlap
Eggbärneren
IUCN Not AssignedForest Reserves
0.25 km² overlap
Rotenflue, Allmig
IUCN Not AssignedForest Reserves
0.24 km² overlap
Zigermoos
IUCN Not AssignedForest Reserves
0.24 km² overlap
Dersbach
IUCN IVFederal Inventory of Fenlands of National Importance
0.23 km² overlap
Rotenflue Allmig
IUCN IVFederal Inventory of Fenlands of National Importance
0.22 km² overlap
Frauental
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.21 km² overlap
Choller/Sumpf
IUCN IVFederal Inventory of Fenlands of National Importance
0.17 km² overlap
Walchwiler Oberallmig
IUCN IVFederal Inventory of Fenlands of National Importance
0.16 km² overlap
Grischei
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.15 km² overlap
Rossberg
IUCN Not AssignedForest Reserves
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 169 distinct species · 604 949 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Lorze : 19 espèces reliées par 139 interactions GloBI sur 6 types (connectance 24.8%, filtre Serrano α=0.2). 15 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°
8,3°C
Annual rain
1 212mm
Moisture idx (CMI)
0,40
Runoff
1 042mm/an
PET
721mm
AET
708mm
Mean slope
8,7°
Water table
298cm
Forest
59%
Crops
10%
Urban
28%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)