HydroBASINS lev08 watershed · #2080484970
Bassin du Dhuy
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 1 administrative regions : Loiret
Sub-basin area
226,5km²
Upstream area
226,5km²
Discharge
1,65m³/s
Mean elev.
112m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 227.2 km²100.0% of basin
17 communes (GADM L5)Available for FRA, RWA
- Saint-Cyr-en-Val44.16 km²99% commune
- Tigy30.33 km²64% commune
- Marcilly-en-Villette27.67 km²44% commune
- Vienne-en-Val23.10 km²65% commune
- Olivet22.14 km²97% commune
- Sandillon21.40 km²49% commune
- Férolles12.64 km²75% commune
- Orléans11.25 km²40% commune
- Ardon11.06 km²20% commune
- Neuvy-en-Sullias10.54 km²41% commune
- Saint-Hilaire-Saint-Mesmin4.42 km²31% commune
- Saint-Pryvé-Saint-Mesmin2.96 km²34% commune
- La Ferté-Saint-Aubin2.92 km²3% commune
- Saint-Jean-le-Blanc1.62 km²22% commune
- Ouvrouer-les-Champs0.82 km²7% commune
- Saint-Denis-en-Val0.13 km²1% commune
- Jargeau0.00 km²0% commune
5 intersecting protected areas
Sologne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
81.88 km² overlap
Vallée de la Loire de Tavers à Belleville-sur-Loire
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.17 km² overlap
Vallée de la Loire du Loiret
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.09 km² overlap
Protected perimeter around a national nature reserve
0.06 km² overlap
Saint-Mesmin
IUCN IVNational Nature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 354 distinct species · 101 721 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 du Dhuy : 26 espèces + 6 bulles famille, 74 interactions GloBI documentées sur 4 types (connectance 14.9%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,9°C
Annual rain
648mm
Moisture idx (CMI)
-0,24
Runoff
229mm/an
PET
852mm
AET
548mm
Mean slope
0,6°
Water table
84cm
Forest
12%
Crops
35%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)