Ontologia

HydroBASINS lev08 watershed · #2080497350

Bassin de la Loire

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 : Maine-et-Loire

Pfafstetter: 23223003

Sub-basin area

36,9km²

Upstream area

86 064,1km²

Discharge

781,64m³/s

Mean elev.

28m

Administrative coverage

Hydrographic chain

Receives from 2 basins

1 dept-equivalent regions (GADM L2)

8 communes (GADM L5)

4 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 977 distinct species · 96 081 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

96 081 obs · 5 cellules
Obs. / cellule
≥ 33 898
33 898–33 897
25 125–33 897
16 414–25 124
< 16 414

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Graphe en cours d’indexation

Calcul du tissu écologique de cette entité.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).

Hydroclimate (BasinATLAS lev08)

Mean T°

11,6°C

Annual rain

652mm

Moisture idx (CMI)

-0,25

Runoff

221mm/an

PET

869mm

AET

550mm

Mean slope

0,8°

Water table

73cm

Forest

0%

Crops

26%

Urban

67%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)