HydroBASINS lev08 watershed · #2080661640
Bassin de Sakarya Nehri
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 4 administrative regions : Günyüzü, Polatlı, Sivrihisar, Çeltik
Sub-basin area
136,5km²
Upstream area
15 169km²
Discharge
38,38m³/s
Mean elev.
901m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Düden2727 km²
- Bassin de Sakarya Nehri45 km²
4 dept-equivalent regions (GADM L2)
- 79.0 km²57.9% of basin
- 53.2 km²38.9% of basin
- 4.3 km²3.1% of basin
- 0.1 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
37 distinct species · 111 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Sakarya Nehri : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 21 interactions GloBI sur 2 types (connectance 26.9%, filtre Serrano α=0.2). 3 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°
11,5°C
Annual rain
391mm
Moisture idx (CMI)
-0,63
Runoff
92mm/an
PET
1 072mm
AET
337mm
Mean slope
4,5°
Water table
377cm
Forest
0%
Crops
21%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)