Ontologia

Commune · FRA

Dému

France

CfbTemperate, no dry season, warm summer(98 %)

Species observed

577

Observations

2 277

Area

29,2km²

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

577 distinct species · 2 277 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 277 obs · 1 cellules
Obs. / cellule
≥ 2 277
2 277–2 276
2 277–2 276
2 277–2 276
< 2 277

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

Climate

Mean T°

13,3°C

Annual rain

853mm

Warmest m°

26,2°C

Coldest m°

2,2°C

Elevation: 180 m on average (min 153 m, max 200 m)

Bioclimatic detailsExpert
Annual mean temp.
13,3°C
Annual rain
853mm
Warmest month
26,2°C
Coldest month
2,2°C
Mean alt.
180m
Min
153m
Max
200m
Std. dev.
12m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(98 %)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

34,5g/kg

Clay

24,6%

Sand

29,2%

Silt

46,2%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiMaggregated to Gers

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
63,3g/kg
Clay
23,5%
Sand
29,4%
Silt
47,0%
5–15 cm
pH H₂O
6,3
Org. C
18,3g/kg
Clay
24,1%
Sand
29,1%
Silt
46,7%
15–30 cm
pH H₂O
6,3
Org. C
21,8g/kg
Clay
26,0%
Sand
29,1%
Silt
44,9%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest16.7%
Crops53.7%
Built-up0.3%
Bare soil1.4%
Other (grassland, water…)27.8%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

6,2km

Basins crossed

2

Max stream order

1

Max drainage

2 882km²

Discharge in basins

0,3m³/s

Mean precip.

820mm/an

Mean T°

12,2°C

Moisture idx

-0,17

Max snow

3%

Mean runoff

321mm/an

Mean elev. (basins)

182m

Rivers / streams (1, ord ≥ 4)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

32,4%

Pesticides

46,4kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas1

IUCN Not Reported · 1

La Gélise

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

38 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.