HydroBASINS lev08 watershed · #2080034430
Bassin de Grønsdalslona
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 17 administrative regions : Bokn, Eidfjord, Etne, Haugesund, Jondal +12
Sub-basin area
6 619,3km²
Upstream area
6 619,3km²
Discharge
14,15m³/s
Mean elev.
614m
Administrative coverage
17 dept-equivalent regions (GADM L2)
- 1004.3 km²15.1% of basin
- 904.4 km²13.6% of basin
- 810.2 km²12.2% of basin
- 709.3 km²10.7% of basin
- 562.4 km²8.5% of basin
- 450.3 km²6.8% of basin
- 447.4 km²6.7% of basin
- 304.6 km²4.6% of basin
30 intersecting protected areas
Folgefonna med tilliggende landskapsvernområder
IUCN Not ReportedEmerald Network
599.51 km² overlap
Folgefonna
IUCN IINational Park
545.36 km² overlap
Hardangervidda med tilliggende landskapsvernområder
IUCN Not ReportedEmerald Network
448.32 km² overlap
Hardangervidda
IUCN IINational Park
448.32 km² overlap
Buer
IUCN VProtected Landscape
21.32 km² overlap
Hattebergsdalen
IUCN VProtected Landscape
15.43 km² overlap
Bondhusdalen
IUCN VProtected Landscape
14.02 km² overlap
Hylsskaret
IUCN IaNature Reserve
6.74 km² overlap
Gulbergnotten
IUCN IaNature Reserve
6.44 km² overlap
21 more protected areassorted by overlap area
Ænesdalen
IUCN VProtected Landscape
3.39 km² overlap
Gullbergnotten
IUCN Not ReportedEmerald Network
3.34 km² overlap
Torstveit
IUCN IaNature Reserve
2.60 km² overlap
Holmedalsberget
IUCN IaNature Reserve
2.35 km² overlap
Holmedalsberget
IUCN Not ReportedEmerald Network
2.35 km² overlap
Stråtveit
IUCN IaNature Reserve
1.76 km² overlap
Ferkingstadøyene
IUCN Not ReportedEmerald Network
1.72 km² overlap
Ferkingstadøyene
IUCN IaNature Reserve
1.72 km² overlap
Urter
IUCN IaNature Reserve
1.70 km² overlap
Urter
IUCN Not ReportedEmerald Network
1.70 km² overlap
Hopsfjellet
IUCN IaNature Reserve
1.68 km² overlap
Hellebrekkene
IUCN IaNature Reserve
1.16 km² overlap
Vikaneset
IUCN IaNature Reserve
1.12 km² overlap
Ullensvang
IUCN IaNature Reserve
0.96 km² overlap
Gåsholmen og Årvikholmen
IUCN IaNature Reserve
0.86 km² overlap
Gåsholmen og Årvikholmen
IUCN Not ReportedEmerald Network
0.86 km² overlap
Nordåker
IUCN IaNature Reserve
0.77 km² overlap
Landavatnet
IUCN IaNature Reserve
0.72 km² overlap
Lindøy
IUCN IVWildlife Conservation Area
0.56 km² overlap
Nature Reserve
0.51 km² overlap
Gitterøy
IUCN IaNature Reserve
0.49 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
13 400 distinct species · 1 221 051 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Grønsdalslona : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 5 types (connectance 13.4%, 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°
3,6°C
Annual rain
2 023mm
Moisture idx (CMI)
0,80
Runoff
1 900mm/an
PET
404mm
AET
403mm
Mean slope
13,7°
Water table
462cm
Forest
46%
Crops
4%
Urban
1%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)