HydroBASINS lev08 watershed · #2080531860
Bassin de l'Allier
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 : Puy-de-Dôme
Sub-basin area
1 960,4km²
Upstream area
6 065,1km²
Discharge
64,62m³/s
Mean elev.
676m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Alagnon1046 km²
- Bassin de l'Allier394 km²
1 dept-equivalent regions (GADM L2)
- 1965.0 km²100.0% of basin
187 communes (GADM L5)Available for FRA, RWA
- Besse-et-Saint-Anastaise56.57 km²77% commune
- Aydat51.31 km²100% commune
- Chambon-sur-Lac44.88 km²94% commune
- Compains40.31 km²80% commune
- Saint-Alyre-ès-Montagne40.14 km²98% commune
- Lezoux34.39 km²99% commune
- Saint-Nectaire33.59 km²100% commune
- Mazoires33.44 km²79% commune
- Saint-Genès-Champanelle28.21 km²55% commune
- Sauxillanges24.76 km²100% commune
- Le Vernet-Sainte-Marguerite24.68 km²100% commune
- Échandelys23.91 km²100% commune
- Valbeleix22.59 km²100% commune
- Vernet-la-Varenne22.39 km²63% commune
- Montaigut-le-Blanc22.26 km²100% commune
- Saint-Julien-de-Coppel21.47 km²100% commune
- Manglieu21.12 km²100% commune
- Sugères20.81 km²100% commune
- Saulzet-le-Froid20.41 km²72% commune
- Saint-Diéry20.35 km²100% commune
- Issoire20.21 km²100% commune
- Condat-lès-Montboissier19.85 km²100% commune
- Saint-Babel19.53 km²100% commune
- Sallèdes19.24 km²100% commune
- La Chapelle-Marcousse19.09 km²100% commune
- Culhat19.07 km²100% commune
- Saint-Genès-la-Tourette18.97 km²100% commune
- Joze18.93 km²99% commune
- Saint-Victor-la-Rivière18.91 km²100% commune
- Vic-le-Comte18.61 km²100% commune
- Brousse17.84 km²79% commune
- Le Broc17.78 km²100% commune
- Isserteaux17.30 km²99% commune
- Saint-Pierre-Colamine17.24 km²100% commune
- Billom16.97 km²100% commune
- Égliseneuve-près-Billom16.96 km²100% commune
- Saint-Saturnin16.88 km²100% commune
- Chassagne16.54 km²100% commune
- Roche-Charles-la-Mayrand16.37 km²100% commune
- Rentières16.12 km²100% commune
- Saint-Étienne-sur-Usson16.00 km²100% commune
- Bort-l'Étang15.65 km²98% commune
- Murol15.42 km²99% commune
- Cournon-d'Auvergne15.10 km²81% commune
- Dauzat-sur-Vodable15.04 km²100% commune
- Yronde-et-Buron14.77 km²100% commune
- Saint-Germain-Lembron14.56 km²91% commune
- Plauzat14.00 km²100% commune
- Montmorin13.95 km²100% commune
- Glaine-Montaigut13.34 km²100% commune
- Moissat13.16 km²100% commune
- Saint-Hérent13.04 km²100% commune
- Chanonat12.98 km²99% commune
- Vertaizon12.96 km²100% commune
- Ardes12.96 km²79% commune
- Pont-du-Château12.64 km²58% commune
- Saint-Floret12.28 km²100% commune
- Olloix12.24 km²100% commune
- Veyre-Monton12.23 km²100% commune
- Champeix12.21 km²100% commune
- Beauregard-l'Évêque12.16 km²100% commune
- Vodable11.98 km²100% commune
- Les Martres-d'Artière11.96 km²81% commune
- Tourzel-Ronzières11.74 km²100% commune
- Saint-Jean-en-Val11.49 km²100% commune
- Solignat11.39 km²100% commune
- Saint-Gervazy11.38 km²81% commune
- Bongheat11.21 km²100% commune
- Aix-la-Fayette11.19 km²86% commune
- Bulhon10.99 km²88% commune
- Chaméane10.79 km²100% commune
- La Roche-Blanche10.50 km²88% commune
- Cournols10.38 km²100% commune
- Neuville10.34 km²91% commune
- Bansat10.26 km²100% commune
- Augnat9.91 km²100% commune
- Ravel9.86 km²100% commune
- Saint-Sandoux9.86 km²100% commune
- Orbeil9.65 km²100% commune
- Neschers9.40 km²100% commune
- Fayet-le-Château9.38 km²73% commune
- Saint-Georges-sur-Allier9.31 km²100% commune
- Les Martres-de-Veyre9.22 km²100% commune
- Pignols9.18 km²100% commune
- Seychalles9.01 km²100% commune
- Saint-Jean-des-Ollières9.01 km²46% commune
- Mirefleurs8.97 km²100% commune
- Mezel8.89 km²100% commune
- Aulhat-Saint-Privat8.76 km²100% commune
- Saint-Yvoine8.73 km²100% commune
- Brenat8.68 km²100% commune
- Saint-Quentin-sur-Sauxillanges8.62 km²100% commune
- Saurier8.60 km²100% commune
- Ludesse8.56 km²100% commune
- Chauriat8.56 km²100% commune
- Égliseneuve-des-Liards8.45 km²100% commune
- Courgoul8.34 km²100% commune
- La Sauvetat8.15 km²100% commune
- Mareugheol7.89 km²100% commune
- Boudes7.74 km²100% commune
- Nonette7.63 km²100% commune
- Antoingt7.31 km²100% commune
- Maringues7.19 km²32% commune
- Laps7.17 km²100% commune
- Lamontgie7.08 km²99% commune
- Le Crest6.97 km²100% commune
- Chalus6.56 km²100% commune
- Dallet6.53 km²98% commune
- Sauvagnat-Sainte-Marthe6.50 km²100% commune
- Saint-Rémy-de-Chargnat6.35 km²100% commune
- Orcet6.34 km²100% commune
- Perrier6.33 km²100% commune
- Varennes-sur-Usson6.18 km²100% commune
- Crevant-Laveine6.15 km²30% commune
- Saint-Germain-l'Herm5.91 km²16% commune
- Saint-Vincent5.89 km²100% commune
- Tallende5.83 km²100% commune
- Authezat5.82 km²100% commune
- Le Breuil-sur-Couze5.72 km²100% commune
- Chadeleuf5.67 km²100% commune
- Bergonne5.67 km²100% commune
- Busséol5.59 km²100% commune
- Les Pradeaux5.45 km²100% commune
- Pardines5.33 km²100% commune
- Usson5.32 km²100% commune
- Grandeyrolles5.31 km²100% commune
- Saint-Amant-Tallende5.26 km²100% commune
- Anzat-le-Luguet5.24 km²8% commune
- Saint-Maurice5.19 km²100% commune
- Lempty4.95 km²100% commune
- Madriat4.94 km²100% commune
- Coudes4.88 km²100% commune
- Pérignat-sur-Allier4.66 km²100% commune
- Bouzel4.65 km²100% commune
- Creste4.62 km²100% commune
- Meilhaud4.55 km²100% commune
- Collanges4.42 km²100% commune
- Espirat4.34 km²100% commune
- Aurières4.27 km²39% commune
- Villeneuve4.19 km²100% commune
- Le Cendre4.08 km²100% commune
- Flat4.07 km²100% commune
- Saint-Martin-des-Plains4.05 km²100% commune
- Reignat3.98 km²100% commune
- Parentignat3.85 km²100% commune
- La Chapelle-sur-Usson3.79 km²54% commune
- Ternant-les-Eaux3.52 km²100% commune
- Apchat3.51 km²10% commune
- Gignat3.47 km²100% commune
- Parent3.46 km²100% commune
- Chas3.40 km²100% commune
- Chidrac3.39 km²100% commune
- Clémensat3.35 km²100% commune
- Romagnat3.31 km²19% commune
- La Roche-Noire3.30 km²100% commune
- Montpeyroux3.20 km²100% commune
- Auzelles3.18 km²10% commune
- Beaulieu3.10 km²35% commune
- Verrières2.98 km²100% commune
- Orsonnette2.85 km²100% commune
- Corent2.79 km²100% commune
- Vassel2.75 km²100% commune
- Lussat2.66 km²29% commune
- Vichel2.35 km²40% commune
- Orléat2.19 km²8% commune
- Chavaroux2.15 km²53% commune
- Esteil1.93 km²45% commune
- Saint-Jean-d'Heurs1.85 km²16% commune
- Sermentizon1.73 km²10% commune
- Saint-Cirgues-sur-Couze1.54 km²100% commune
- Auzat-la-Combelle1.48 km²11% commune
- Saint-Bonnet-lès-Allier1.30 km²100% commune
- Nébouzat0.95 km²5% commune
- Saint-Laure0.91 km²13% commune
- Saint-Éloy-la-Glacière0.89 km²8% commune
- Mauzun0.88 km²100% commune
- La Godivelle0.81 km²5% commune
- Trézioux0.69 km²4% commune
- Fournols0.62 km²2% commune
- Pérignat-lès-Sarliève0.60 km²17% commune
- Lempdes0.43 km²3% commune
- Vernines0.27 km²2% commune
- Mont-Dore0.21 km²1% commune
- Peschadoires0.09 km²0% commune
- Entraigues0.09 km²1% commune
- Estandeuil0.07 km²1% commune
- Chappes0.01 km²0% commune
30 intersecting protected areas
Volcans D\'Auvergne
IUCN VRegional Nature Park
619.33 km² overlap
Livradois-Forez
IUCN VRegional Nature Park
485.10 km² overlap
Pays des Couzes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
468.22 km² overlap
Chaîne des Puys - Limagne fault tectonic arena
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
107.57 km² overlap
Val d'allier Saint Yorre-Joze
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.57 km² overlap
Val d'Allier - Alagnon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.43 km² overlap
Vallées et côteaux xérothermiques des Couzes et Limagnes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.32 km² overlap
Monts-Dore
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.07 km² overlap
Gîtes à chauve-souris du pays des Couzes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.28 km² overlap
21 more protected areassorted by overlap area
Comté d'Auvergne et Puy Saint Romain
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.65 km² overlap
Vallée De Chaudefour
IUCN IVNational Nature Reserve
8.04 km² overlap
Cézallier
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.27 km² overlap
Zones alluviales de la confluence Dore-Allier
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.53 km² overlap
Plaine des Varennes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.30 km² overlap
Chaîne des Puys
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.93 km² overlap
Puy de Pileyre-Turluron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.78 km² overlap
Rocher De La Jacquette
IUCN IVNational Nature Reserve
0.36 km² overlap
lac-tourbiere de bourdouze
IUCN IVLand acquired by a regional conservatory of natural areas
0.36 km² overlap
Etangs De La Molière
IUCN IVBiotope Protection Order
0.32 km² overlap
Chastreix-Sancy
IUCN IVNational Nature Reserve
0.24 km² overlap
rocher de la jacquette
IUCN IVLand acquired by a regional conservatory of natural areas
0.22 km² overlap
Land acquired by a regional conservatory of natural areas
0.21 km² overlap
Biotope Protection Order
0.20 km² overlap
Puy De Marmant
IUCN IVRegional Nature Reserve
0.20 km² overlap
Land acquired by a regional conservatory of natural areas
0.16 km² overlap
Land acquired by a regional conservatory of natural areas
0.16 km² overlap
Narse D\'Espinasse
IUCN IVBiotope Protection Order
0.15 km² overlap
Land acquired by a regional conservatory of natural areas
0.11 km² overlap
Land acquired by a regional conservatory of natural areas
0.11 km² overlap
val d\'allier a issoire
IUCN IVLand acquired by a regional conservatory of natural areas
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 780 distinct species · 1 018 637 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 l'Allier : 21 espèces + 6 bulles famille, 43 interactions GloBI documentées sur 6 types (connectance 12.3%, 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°
9,2°C
Annual rain
722mm
Moisture idx (CMI)
-0,15
Runoff
341mm/an
PET
858mm
AET
590mm
Mean slope
6,7°
Water table
364cm
Forest
29%
Crops
44%
Urban
3%
Protected
55%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)