HydroBASINS lev08 watershed · #7080034520
Bassin de Rivière Etchemin
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 7 administrative regions : Bellechasse, Communauté-Urbaine-de-Québec, Desjardins, La Nouvelle-Beauce, Les Chutes-de-la-Chaudière +2
Sub-basin area
1 567,3km²
Upstream area
1 053 293,8km²
Discharge
12 343,93m³/s
Mean elev.
312m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
7 dept-equivalent regions (GADM L2)
- 633.1 km²40.3% of basin
- 306.3 km²19.5% of basin
- 293.8 km²18.7% of basin
- 181.5 km²11.5% of basin
- 84.3 km²5.4% of basin
- 47.4 km²3.0% of basin
- 11.2 km²0.7% of basin
17 intersecting protected areas
Water fowl gathering area
1.88 km² overlap
Water fowl gathering area
1.81 km² overlap
Water fowl gathering area
1.30 km² overlap
Natural Area Under Private Stewardship
0.42 km² overlap
Natural Area Under Private Stewardship
0.38 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.38 km² overlap
Natural Area Under Private Stewardship
0.23 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.20 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.19 km² overlap
8 more protected areassorted by overlap area
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.07 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.06 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.05 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.04 km² overlap
Ecological reserve
0.03 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.03 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.02 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 355 distinct species · 806 820 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Rivière Etchemin : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 3 types (connectance 15.6%, filtre Serrano α=0.2). 11 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°
3,7°C
Annual rain
1 066mm
Moisture idx (CMI)
0,31
Runoff
753mm/an
PET
734mm
AET
641mm
Mean slope
2,9°
Water table
77cm
Forest
74%
Crops
20%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)