Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
165 km²
Commune · FRA
La Possonnière
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 848
Observations
22 105
Area
18,8km²
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).
Species present
1 848 distinct species · 22 105 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,0°C
Annual rain
674mm
Warmest m°
24,1°C
Coldest m°
2,3°C
Elevation: 37 m on average (min 14 m, max 62 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,0°C
Annual rain
674mm
Warmest month
24,1°C
Coldest month
2,3°C
Mean alt.
37m
Min
14m
Max
62m
Std. dev.
15m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,2
Org. C
27,4g/kg
Clay
21,8%
Sand
37,2%
Silt
41,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Maine-et-Loire
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
45,1g/kg
Clay
19,2%
Sand
38,7%
Silt
42,2%
5–15 cm
pH H₂O
6,3
Org. C
20,7g/kg
Clay
22,4%
Sand
36,5%
Silt
41,0%
15–30 cm
pH H₂O
6,3
Org. C
16,3g/kg
Clay
23,6%
Sand
36,5%
Silt
39,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.1%
Crops46.1%
Built-up2.0%
Bare soil1.1%
Other (grassland, water…)37.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology
Computing basins, lakes, rivers…
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
195,6%
Pesticides
43,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 2
Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
157 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
France-specific data (Phase 2)
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.