HydroBASINS lev08 watershed · #2080544200
Bassin de Olt
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 : Avrig, Berislavesti, Boisoara, Brezoi, Cainenii Mici +10
Sub-basin area
786,5km²
Upstream area
13 952,2km²
Discharge
109,62m³/s
Mean elev.
985m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Olt2904 km²
- Bassin de Hârtibaciu2212 km²
16 dept-equivalent regions (GADM L2)
- 250.2 km²31.7% of basin
- 155.8 km²19.8% of basin
- 99.6 km²12.6% of basin
- 82.3 km²10.4% of basin
- 81.8 km²10.4% of basin
- 49.4 km²6.3% of basin
- Turnu RosuSibiu · Romania42.0 km²5.3% of basin
- 23.6 km²3.0% of basin
8 moreFull L2 list
- Berislavesti2.4 km² · 0.3%
- Voineasa0.5 km² · 0.1%
- Racovita0.3 km² · 0.0%
- Salatrucel0.2 km² · 0.0%
- Avrig0.2 km² · 0.0%
- Calimanesti0.1 km² · 0.0%
- Malaia0.1 km² · 0.0%
- Salatrucu0.0 km² · 0.0%
13 intersecting protected areas
Frumoasa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
180.03 km² overlap
Frumoasa
IUCN Not ReportedSpecial Protection Area (Birds Directive)
178.06 km² overlap
Munții Făgăraș
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
172.53 km² overlap
Cozia - Buila - Vânturarița
IUCN Not ReportedSpecial Protection Area (Birds Directive)
64.42 km² overlap
Parcul Național Cozia
IUCN IINational park
59.49 km² overlap
Cozia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
59.49 km² overlap
Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
14.55 km² overlap
Hârtibaciu Sud - Vest
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.56 km² overlap
Pădurea Călinești - Brezoi
IUCN IVNature reserve
5.36 km² overlap
4 more protected areassorted by overlap area
Oltul Mijlociu - Cibin - Hârtibaciu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.16 km² overlap
Nature reserve
0.18 km² overlap
Piemontul Făgăraș
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.06 km² overlap
Avenul Piciorul Boului
IUCN IIINatural monument
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
628 distinct species · 1 598 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 Olt : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 11 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°
6,4°C
Annual rain
765mm
Moisture idx (CMI)
-0,02
Runoff
280mm/an
PET
782mm
AET
608mm
Mean slope
19,4°
Water table
694cm
Forest
93%
Crops
3%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)