HydroBASINS lev08 watershed · #2080551140
Bassin du Lary
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 3 administrative regions : Charente, Charente-Maritime, Gironde
Sub-basin area
416,4km²
Upstream area
416,4km²
Discharge
7,04m³/s
Mean elev.
86m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 259.3 km²62.1% of basin
- 122.5 km²29.3% of basin
- 35.5 km²8.5% of basin
40 communes (GADM L5)Available for FRA, RWA
- Cercoux34.67 km²82% commune
- Clérac30.02 km²68% commune
- Le Fouilloux27.92 km²95% commune
- Neuvicq23.30 km²100% commune
- Lagorce22.77 km²81% commune
- Montguyon18.64 km²100% commune
- Saint-Palais-de-Négrignac18.52 km²100% commune
- Chevanceaux18.17 km²82% commune
- Saint-Vallier18.16 km²100% commune
- La Clotte17.74 km²100% commune
- Guizengeard15.43 km²100% commune
- Boisbreteau15.41 km²100% commune
- Oriolles14.58 km²79% commune
- Orignolles13.38 km²100% commune
- Saint-Pierre-du-Palais13.08 km²99% commune
- Montlieu-la-Garde13.01 km²40% commune
- Bors (Canton de Baignes-Sainte-R11.90 km²100% commune
- Boresse-et-Martron11.37 km²100% commune
- Sauvignac10.98 km²97% commune
- Brossac10.12 km²48% commune
- Saint-Martin-d'Ary8.61 km²100% commune
- Passirac8.24 km²56% commune
- Bayas7.88 km²64% commune
- Touvérac5.96 km²32% commune
- La Genétouze5.53 km²15% commune
- Yviers4.28 km²19% commune
- Chillac3.91 km²27% commune
- Saint-Martin-de-Coux3.22 km²21% commune
- Condéon2.36 km²8% commune
- Guîtres2.20 km²46% commune
- Coutras1.30 km²4% commune
- Maransin1.16 km²4% commune
- Pouillac1.08 km²23% commune
- Bedenac0.82 km²2% commune
- Bardenac0.77 km²9% commune
- Boscamnant0.28 km²2% commune
- Chantillac0.22 km²1% commune
- Chamadelle0.21 km²1% commune
- Baignes-Sainte-Radegonde0.16 km²1% commune
- Sablons0.00 km²0% commune
16 intersecting protected areas
Vallées du Lary et du Palais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.43 km² overlap
Landes de Touverac - Saint-Vallier
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.51 km² overlap
Landes de Montendre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.46 km² overlap
Biotope Protection Order
1.28 km² overlap
Biotope Protection Order
1.00 km² overlap
Land acquired by a regional conservatory of natural areas
0.96 km² overlap
le lary
IUCN IVLand acquired by a regional conservatory of natural areas
0.33 km² overlap
Land acquired by a regional conservatory of natural areas
0.29 km² overlap
vallee du palais nord - mc
IUCN IVLand acquired by a regional conservatory of natural areas
0.20 km² overlap
7 more protected areassorted by overlap area
Vallée de l'Isle de Périgueux à sa confluence avec la Dordogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.12 km² overlap
etang de la vergne
IUCN IVLand acquired by a regional conservatory of natural areas
0.10 km² overlap
le pas blanc
IUCN IVLand acquired by a regional conservatory of natural areas
0.09 km² overlap
vallee de la poussonne - mc
IUCN IVLand acquired by a regional conservatory of natural areas
0.08 km² overlap
etang levrault
IUCN IVLand acquired by a regional conservatory of natural areas
0.02 km² overlap
Haute vallée de la Seugne en amont de pons et affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
landes de montendre
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 515 distinct species · 126 152 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 du Lary : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 130 interactions GloBI sur 5 types (connectance 19.5%, filtre Serrano α=0.2). 14 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°
12,2°C
Annual rain
894mm
Moisture idx (CMI)
-0,06
Runoff
532mm/an
PET
947mm
AET
666mm
Mean slope
2,4°
Water table
148cm
Forest
18%
Crops
12%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)