HydroBASINS lev08 watershed · #2080501910
Bassin de Someș
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 33 administrative regions : Alunis, Babeni, Balan, Bobalna, Boiu Mare +28
Sub-basin area
1 339,5km²
Upstream area
10 093,9km²
Discharge
82,49m³/s
Mean elev.
377m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Valea Mare280 km²
- Bassin de Valea Țopului223 km²
33 dept-equivalent regions (GADM L2)
- 97.6 km²7.3% of basin
- 95.7 km²7.1% of basin
- 94.8 km²7.1% of basin
- 93.6 km²7.0% of basin
- 83.8 km²6.2% of basin
- 77.3 km²5.8% of basin
- 77.1 km²5.7% of basin
- 76.1 km²5.7% of basin
25 moreFull L2 list
- Dej62.6 km² · 4.7%
- Lozna60.8 km² · 4.5%
- Surduc58.5 km² · 4.4%
- Letca53.7 km² · 4.0%
- Poiana Blenchii52.5 km² · 3.9%
- Zalha51.1 km² · 3.8%
- Babeni48.3 km² · 3.6%
- Cristolt45.8 km² · 3.4%
- Coroieni43.7 km² · 3.3%
- Recea-cristur39.4 km² · 2.9%
- Jichisu De Jos38.5 km² · 2.9%
- Catcau37.6 km² · 2.8%
- Vima Mica20.7 km² · 1.5%
- Valea Chioarului11.8 km² · 0.9%
- Boiu Mare7.8 km² · 0.6%
- Reteag2.7 km² · 0.2%
- Targu Lapus2.5 km² · 0.2%
- Cuzdrioara2.3 km² · 0.2%
- Cornesti2.0 km² · 0.1%
- Panticeu2.0 km² · 0.1%
- Hida1.2 km² · 0.1%
- Balan0.9 km² · 0.1%
- Jibou0.5 km² · 0.0%
- Ciceu-giurgesti0.4 km² · 0.0%
- Alunis0.3 km² · 0.0%
8 intersecting protected areas
Cursul Mijlociu al Someșului
IUCN Not ReportedSpecial Protection Area (Birds Directive)
142.20 km² overlap
Lozna
IUCN Not ReportedSite of Community Importance (Habitats Directive)
102.15 km² overlap
Peștera Măgurici
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.90 km² overlap
Cheile Babei
IUCN Not AssignedNot Assigned
0.51 km² overlap
Peștera Măgurici
IUCN IIINatural monument
0.30 km² overlap
Pădurea "La Castani"
IUCN Not AssignedNot Assigned
0.12 km² overlap
Rezervația peisagistică Stanii Clițului
IUCN Not AssignedNot Assigned
0.06 km² overlap
Pietrele Moșu și Baba
IUCN Not AssignedNot Assigned
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
628 distinct species · 2 415 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Someș : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 6 types (connectance 14.3%, 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°
8,7°C
Annual rain
674mm
Moisture idx (CMI)
-0,22
Runoff
223mm/an
PET
862mm
AET
572mm
Mean slope
9,0°
Water table
416cm
Forest
53%
Crops
26%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)