Ontologia

Commune · FRA

Preignan

France

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 374

Observations

9 099

Area

10,3km²

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

1 374 distinct species · 9 099 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 099 obs · 3 cellules
Obs. / cellule
≥ 6 121
6 121–6 120
6 121–6 120
1 609–6 120
< 1 609

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

Climate

Mean T°

13,6°C

Annual rain

689mm

Warmest m°

26,6°C

Coldest m°

2,2°C

Elevation: 145 m on average (min 127 m, max 165 m)

Bioclimatic detailsExpert
Annual mean temp.
13,6°C
Annual rain
689mm
Warmest month
26,6°C
Coldest month
2,2°C
Mean alt.
145m
Min
127m
Max
165m
Std. dev.
14m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,1

Org. C

32,2g/kg

Clay

32,6%

Sand

18,3%

Silt

49,1%

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
7,0
Org. C
60,5g/kg
Clay
32,3%
Sand
18,0%
Silt
49,8%
5–15 cm
pH H₂O
7,1
Org. C
16,4g/kg
Clay
32,0%
Sand
17,2%
Silt
50,7%
15–30 cm
pH H₂O
7,1
Org. C
19,6g/kg
Clay
33,6%
Sand
19,6%
Silt
46,7%

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

Land cover

Forest5.6%
Crops69.2%
Built-up1.7%
Bare soil2.2%
Other (grassland, water…)21.3%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

0,5km

Basins crossed

1

Max stream order

3

Max drainage

1 239km²

Discharge in basins

0,1m³/s

Mean precip.

774mm/an

Mean T°

12,2°C

Moisture idx

-0,21

Max snow

1%

Mean runoff

275mm/an

Mean elev. (basins)

195m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,5nW

Built-up

165,7%

Pesticides

44,4kg/km²

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

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.