Ontologia

Department · MRT

Aïoun

Mauritania

BWhArid, desert, hot(100 %)

Species observed

218

Observations

2 182

Area

17 702,1km²

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

218 distinct species · 2 182 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 182 obs · 184 cellules
Obs. / cellule
≥ 62
31–61
15–30
4–14
< 4

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

Climate

Mean T°

29,7°C

Annual rain

175mm

Warmest m°

41,1°C

Coldest m°

14,4°C

Elevation: 202 m on average (min 156 m, max 313 m)

Bioclimatic detailsExpert
Annual mean temp.
29,7°C
Annual rain
175mm
Warmest month
41,1°C
Coldest month
14,4°C
Mean alt.
202m
Min
156m
Max
313m
Std. dev.
22m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

3,8g/kg

Clay

27,7%

Sand

51,5%

Silt

20,8%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
4,5g/kg
Clay
25,8%
Sand
52,6%
Silt
21,6%
5–15 cm
pH H₂O
7,5
Org. C
3,6g/kg
Clay
26,8%
Sand
52,3%
Silt
20,9%
15–30 cm
pH H₂O
7,5
Org. C
3,5g/kg
Clay
30,5%
Sand
49,6%
Silt
19,9%

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

Land cover

Forest0.7%
Crops5.0%
Built-up0.0%
Bare soil39.7%
Other (grassland, water…)54.6%

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

Hydrology48 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

12,2km

Basins crossed

48

Max stream order

6

Max drainage

63 113km²

Discharge in basins

5,8m³/s

Mean precip.

187mm/an

Mean T°

29,5°C

Moisture idx

-0,91

Mean runoff

25mm/an

Mean elev. (basins)

212m

Watersheds crossing here

39 more basins

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

0,0nW

Built-up

2,4%

Pesticides

0,0kg/km²

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