HydroBASINS lev08 watershed · #2080532000
Bassin de la Boutonne
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 2 administrative regions : Charente-Maritime, Deux-Sèvres
Sub-basin area
1 331,9km²
Upstream area
1 331,9km²
Discharge
24,73m³/s
Mean elev.
67m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 806.9 km²60.4% of basin
- 528.3 km²39.6% of basin
137 communes (GADM L5)Available for FRA, RWA
- Celles-sur-Belle35.68 km²94% commune
- Aulnay31.58 km²100% commune
- Secondigné-sur-Belle24.78 km²100% commune
- Les Nouillers24.14 km²100% commune
- Saint-Léger-de-la-Martinière24.02 km²94% commune
- Saint-Mandé-sur-Brédoire23.41 km²100% commune
- Bernay-Saint-Martin23.16 km²91% commune
- Gournay-Loizé23.10 km²98% commune
- La Villedieu22.34 km²100% commune
- Tonnay-Boutonne22.25 km²94% commune
- Périgné21.12 km²100% commune
- Chizé21.11 km²91% commune
- Néré20.94 km²69% commune
- Chef-Boutonne20.54 km²100% commune
- Varaize20.27 km²99% commune
- Ensigné20.27 km²100% commune
- Saint-Denis-du-Pin19.13 km²100% commune
- Asnières-en-Poitou19.06 km²100% commune
- Saint-Jean-d'Angély18.88 km²100% commune
- Antezant-la-Chapelle18.76 km²100% commune
- Mazeray18.50 km²95% commune
- Paizay-le-Chapt18.04 km²89% commune
- Saint-Loup17.23 km²100% commune
- Cherbonnières16.77 km²100% commune
- Saint-Pierre-de-Juillers16.72 km²95% commune
- Brûlain16.38 km²68% commune
- Archingeay15.89 km²95% commune
- Landes15.88 km²100% commune
- Brioux-sur-Boutonne15.72 km²100% commune
- Courant15.59 km²100% commune
- Fontenille-Saint-Martin-d'Entrai15.20 km²100% commune
- Coivert15.06 km²100% commune
- Les Églises-d'Argenteuil15.01 km²100% commune
- Puy-du-Lac14.72 km²100% commune
- Dampierre-sur-Boutonne14.18 km²100% commune
- La Vergne14.08 km²100% commune
- Loiré-sur-Nie13.84 km²96% commune
- Asnières-la-Giraud13.79 km²74% commune
- Puyrolland13.44 km²100% commune
- Migré13.31 km²92% commune
- Villefollet12.81 km²100% commune
- Saint-Coutant-le-Grand12.51 km²97% commune
- Villiers-sur-Chizé12.21 km²100% commune
- Paillé12.17 km²100% commune
- Contré12.16 km²95% commune
- Lozay12.09 km²100% commune
- Sompt12.06 km²100% commune
- Chail11.93 km²98% commune
- Torxé11.48 km²100% commune
- Paizay-le-Tort11.38 km²100% commune
- Champdolent11.24 km²94% commune
- La Benâte11.05 km²100% commune
- Saint-Génard11.04 km²100% commune
- Tillou10.59 km²100% commune
- Villemorin10.57 km²100% commune
- Le Vert10.57 km²92% commune
- Nuaillé-sur-Boutonne10.55 km²100% commune
- Saint-Georges-de-Longuepierre10.05 km²100% commune
- Melle9.83 km²100% commune
- Fontenet9.78 km²96% commune
- Séligné9.59 km²100% commune
- Saint-Martin-lès-Melle9.53 km²100% commune
- Villeneuve-la-Comtesse9.40 km²59% commune
- Mazières-sur-Béronne9.39 km²100% commune
- Les Fosses9.35 km²78% commune
- Saint-Romans-lès-Melle8.98 km²100% commune
- Saint-Julien-de-l'Escap8.91 km²100% commune
- Bignay8.90 km²99% commune
- La Jarrie-Audouin8.83 km²100% commune
- Vernoux-sur-Boutonne8.36 km²100% commune
- Vergné8.32 km²97% commune
- Chérigné8.13 km²100% commune
- Lussant8.09 km²89% commune
- Lusseray8.02 km²100% commune
- Brieuil-sur-Chizé8.02 km²100% commune
- Saint-Séverin-sur-Boutonne7.93 km²96% commune
- Pouffonds7.30 km²100% commune
- Beaussais7.13 km²44% commune
- Saint-Pierre-de-l'Isle7.00 km²100% commune
- Loulay6.80 km²100% commune
- Breuil-la-Réorte6.65 km²42% commune
- Saint-Martin-de-Juillers6.62 km²81% commune
- Courcelles6.52 km²100% commune
- Annezay6.44 km²88% commune
- Saint-Félix6.40 km²41% commune
- Vitré6.33 km²64% commune
- Ternant6.04 km²100% commune
- Saint-Crépin5.81 km²41% commune
- Blanzay-sur-Boutonne5.65 km²100% commune
- Vervant5.52 km²100% commune
- La Bataille5.47 km²90% commune
- Chantemerle-sur-la-Soie5.43 km²100% commune
- Luché-sur-Brioux5.41 km²100% commune
- Poursay-Garnaud5.38 km²100% commune
- Saint-Pardoult5.29 km²100% commune
- Voissay4.76 km²100% commune
- Gibourne4.65 km²41% commune
- Juillé4.56 km²100% commune
- Crézières4.47 km²98% commune
- Saint-Médard4.40 km²99% commune
- Maisonnay4.23 km²80% commune
- Nachamps4.15 km²100% commune
- Les Alleuds4.14 km²46% commune
- Saint-Hilaire-de-Villefranche4.01 km²17% commune
- Saint-Savinien3.92 km²8% commune
- Saint-Laurent-de-la-Barrière3.67 km²47% commune
- Saint-Martial3.48 km²100% commune
- Ardilleux3.46 km²32% commune
- Aumagne3.46 km²17% commune
- Sepvret2.94 km²17% commune
- Moragne2.93 km²26% commune
- Loubigné2.46 km²23% commune
- Saint-Vincent-la-Châtre2.34 km²11% commune
- Thorigné2.03 km²11% commune
- Cabariot1.98 km²13% commune
- La Croix-Comtesse1.88 km²83% commune
- Nantillé1.67 km²15% commune
- Chervettes1.67 km²44% commune
- Vinax1.60 km²17% commune
- Melleran1.44 km²7% commune
- Lezay1.33 km²3% commune
- Tonnay-Charente1.20 km²3% commune
- Bords1.00 km²6% commune
- Taillant0.94 km²19% commune
- Villiers-en-Bois0.90 km²5% commune
- Fenioux0.67 km²7% commune
- Sainte-Blandine0.51 km²3% commune
- Les Éduts0.50 km²6% commune
- Aubigné0.29 km²1% commune
- Boisserolles0.16 km²2% commune
- Saint-Romans-des-Champs0.14 km²3% commune
- Sainte-Même0.14 km²2% commune
- La Brousse0.10 km²1% commune
- Le Gicq0.08 km²1% commune
- Marigny0.08 km²0% commune
- La Vallée0.02 km²0% commune
- Saint-Mard0.00 km²0% commune
15 intersecting protected areas
Vallée de la Boutonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
71.58 km² overlap
Massif forestier de Chizé-Aulnay
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
71.56 km² overlap
Plaine de Néré à Bresdon
IUCN Not ReportedSpecial Protection Area (Birds Directive)
28.91 km² overlap
Plaine de Niort Sud-Est
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.85 km² overlap
Vallée de la Charente (basse vallée)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.47 km² overlap
Estuaire et basse vallée de la Charente
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.47 km² overlap
Sylve D\'Argenson
IUCN IaForest Integral Biological Reserve
6.02 km² overlap
Carrières de Loubeau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.30 km² overlap
Land acquired by a regional conservatory of natural areas
0.12 km² overlap
6 more protected areassorted by overlap area
Land acquired by a regional conservatory of natural areas
0.08 km² overlap
Carrières de Saint-Savinien
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.06 km² overlap
Grottes De Loubeau
IUCN IVBiotope Protection Order
0.04 km² overlap
Land acquired by a regional conservatory of natural areas
0.04 km² overlap
beau regard
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
bois secs
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 180 distinct species · 602 177 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 la Boutonne : 39 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 9.2%, 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°
12,1°C
Annual rain
831mm
Moisture idx (CMI)
-0,06
Runoff
535mm/an
PET
882mm
AET
617mm
Mean slope
1,3°
Water table
75cm
Forest
1%
Crops
70%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)