HydroBASINS lev08 watershed · #2080577240
Bassin du Sor
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 : Aude, Haute-Garonne, Tarn
Sub-basin area
473,6km²
Upstream area
473,6km²
Discharge
6,09m³/s
Mean elev.
318m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 376.6 km²79.4% of basin
- 82.4 km²17.4% of basin
- 15.5 km²3.3% of basin
45 communes (GADM L5)Available for FRA, RWA
- Sorèze42.98 km²100% commune
- Revel35.02 km²100% commune
- Puylaurens24.45 km²30% commune
- Verdalle24.02 km²100% commune
- Dourgne22.94 km²100% commune
- Saint-Félix-Lauragais22.40 km²42% commune
- Escoussens20.35 km²85% commune
- Arfons19.74 km²50% commune
- Viviers-lès-Montagnes18.39 km²100% commune
- Saint-Germain-des-Prés16.98 km²99% commune
- Lempaut14.04 km²100% commune
- Blan13.50 km²100% commune
- Soual13.29 km²100% commune
- Labruguière12.69 km²20% commune
- Saint-Amancet12.01 km²100% commune
- Vaudreuille11.63 km²100% commune
- Lagardiolle10.15 km²100% commune
- Massaguel9.65 km²100% commune
- Montgey8.75 km²87% commune
- Saint-Affrique-les-Montagnes7.88 km²100% commune
- Cambounet-sur-le-Sor7.70 km²98% commune
- Lescout7.47 km²100% commune
- Garrevaques7.27 km²100% commune
- Montégut-Lauragais7.10 km²92% commune
- Sémalens7.10 km²64% commune
- Palleville6.26 km²100% commune
- Les Cammazes5.91 km²74% commune
- Cahuzac5.43 km²100% commune
- Les Brunels5.25 km²44% commune
- Navès5.09 km²51% commune
- Poudis4.72 km²100% commune
- Saint-Avit4.66 km²100% commune
- Belleserre4.61 km²100% commune
- Saissac4.43 km²7% commune
- Aguts4.12 km²43% commune
- Durfort4.11 km²100% commune
- Péchaudier3.98 km²57% commune
- Saint-Sernin-lès-Lavaur3.89 km²100% commune
- Nogaret3.21 km²85% commune
- Roumens3.02 km²100% commune
- Labécède-Lauragais2.93 km²14% commune
- Saïx2.42 km²18% commune
- La Pomarède2.38 km²17% commune
- Villemagne0.49 km²4% commune
- Saint-Julia0.05 km²0% commune
5 intersecting protected areas
Haut-Languedoc
IUCN VRegional Nature Park
173.75 km² overlap
Montagne Noire occidentale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.13 km² overlap
Vallée du Lampy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.42 km² overlap
Cambounet-Sur-Le-Sor
IUCN IVRegional Nature Reserve
0.31 km² overlap
Forêt De L\'Aiguille
IUCN IVForest Managed Biological Reserve
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 903 distinct species · 135 330 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Sor : 35 espèces + 5 bulles famille, 72 interactions GloBI documentées sur 4 types (connectance 9.2%, filtre Serrano α=0.2). Les 5 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°
12,4°C
Annual rain
792mm
Moisture idx (CMI)
-0,17
Runoff
404mm/an
PET
957mm
AET
655mm
Mean slope
4,4°
Water table
200cm
Forest
29%
Crops
65%
Urban
2%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)