Ontologia

District · YEM

Ahwar

Yemen

BWhArid, desert, hot(100 %)

Species observed

9

Observations

39

Area

3 646,3km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Species present

9 distinct species · 39 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

39 obs · 3 cellules
Obs. / cellule
≥ 22
22–21
22–21
15–21
< 15

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

Climate

Mean T°

27,5°C

Annual rain

113mm

Warmest m°

34,4°C

Coldest m°

18,8°C

Elevation: 256 m on average (min -79 m, max 1 070 m)

Bioclimatic detailsExpert
Annual mean temp.
27,5°C
Annual rain
113mm
Warmest month
34,4°C
Coldest month
18,8°C
Mean alt.
256m
Min
-79m
Max
1 070m
Std. dev.
187m
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

8,1

Org. C

7,9g/kg

Clay

16,7%

Sand

50,3%

Silt

33,0%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
8,3g/kg
Clay
16,7%
Sand
50,2%
Silt
33,1%
5–15 cm
pH H₂O
8,1
Org. C
7,6g/kg
Clay
16,8%
Sand
50,2%
Silt
33,0%
15–30 cm
pH H₂O
8,1
Org. C
7,7g/kg
Clay
16,6%
Sand
50,4%
Silt
33,0%

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

Land cover

Forest0.3%
Crops1.0%
Built-up0.0%
Bare soil87.7%
Other (grassland, water…)10.9%

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

Hydrology13 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

76,7km

Basins crossed

13

Max stream order

5

Max drainage

7 197km²

Discharge in basins

6,3m³/s

Mean precip.

34mm/an

Mean T°

25,7°C

Moisture idx

-0,98

Mean runoff

23mm/an

Mean elev. (basins)

295m

Watersheds crossing here

4 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

1,3%

Pesticides

0,0kg/km²

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