HydroBASINS lev08 watershed · #2080526700
Bassin de Târnava Mare
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 16 administrative regions : Axente Sever, Bazna, Blaj, Cenade, Cergau Mare +11
Sub-basin area
335,7km²
Upstream area
3 652,2km²
Discharge
25,84m³/s
Mean elev.
366m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Târnava Mare1194 km²
- Bassin de Vișa558 km²
16 dept-equivalent regions (GADM L2)
- 71.2 km²21.2% of basin
- 67.6 km²20.1% of basin
- 53.1 km²15.8% of basin
- Seica MicaSibiu · Romania52.4 km²15.6% of basin
- 43.5 km²12.9% of basin
- 27.8 km²8.3% of basin
- Axente SeverSibiu · Romania11.7 km²3.5% of basin
- 2.5 km²0.7% of basin
8 moreFull L2 list
- Sancel2.0 km² · 0.6%
- Copsa Mica1.8 km² · 0.5%
- Seica Mare1.6 km² · 0.5%
- Loamnes0.5 km² · 0.2%
- Cetatea De Balta0.3 km² · 0.1%
- Rosia De Secas0.3 km² · 0.1%
- Sona0.2 km² · 0.0%
- Bazna0.0 km² · 0.0%
3 intersecting protected areas
Râul Târnava Mare între Copșa Mică și Mihalț
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.84 km² overlap
Pajiștile de la Mănărade
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.98 km² overlap
Podișul Secașelor
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
401 distinct species · 963 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 Târnava Mare : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 5 types (connectance 10.4%, 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°
9,2°C
Annual rain
601mm
Moisture idx (CMI)
-0,35
Runoff
220mm/an
PET
918mm
AET
514mm
Mean slope
7,7°
Water table
426cm
Forest
48%
Crops
30%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)