Ontologia

District · YEM

Al Hajjaylah

Yemen

BWhArid, desert, hot(100 %)

Species observed

8

Observations

8

Area

104,1km²

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

8 distinct species · 8 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 obs · 2 cellules
Obs. / cellule
≥ 6
6–5
6–5
6–5
< 6

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

Climate

Mean T°

27,8°C

Annual rain

525mm

Warmest m°

35,9°C

Coldest m°

19,4°C

Elevation: 567 m on average (min 450 m, max 860 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
525mm
Warmest month
35,9°C
Coldest month
19,4°C
Mean alt.
567m
Min
450m
Max
860m
Std. dev.
91m
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

8,0

Org. C

12,4g/kg

Clay

22,0%

Sand

41,5%

Silt

36,6%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
13,6g/kg
Clay
21,0%
Sand
42,3%
Silt
36,7%
5–15 cm
pH H₂O
8,0
Org. C
11,0g/kg
Clay
22,4%
Sand
41,4%
Silt
36,2%
15–30 cm
pH H₂O
8,0
Org. C
12,6g/kg
Clay
22,5%
Sand
40,7%
Silt
36,8%

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

Land cover

Forest2.2%
Crops34.1%
Built-up0.2%
Bare soil3.9%
Other (grassland, water…)59.5%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

3 910km²

Discharge in basins

0,2m³/s

Mean precip.

192mm/an

Mean T°

25,4°C

Moisture idx

-0,90

Mean runoff

32mm/an

Mean elev. (basins)

831m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

0,2nW

Built-up

20,8%

Pesticides

0,9kg/km²

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