Ontologia

District · YEM

Al Matammah

Yemen

BWhArid, desert, hot(100 %)

Species observed

1

Observations

10

Area

739,2km²

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

1 distinct species · 10 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 obs · 1 cellules
Obs. / cellule
≥ 10
10–9
10–9
10–9
< 10

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

Climate

Mean T°

24,3°C

Annual rain

83mm

Warmest m°

35,1°C

Coldest m°

11,0°C

Elevation: 1 322 m on average (min 1 166 m, max 1 951 m)

Bioclimatic detailsExpert
Annual mean temp.
24,3°C
Annual rain
83mm
Warmest month
35,1°C
Coldest month
11,0°C
Mean alt.
1 322m
Min
1 166m
Max
1 951m
Std. dev.
139m
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

8,2

Org. C

7,7g/kg

Clay

15,5%

Sand

48,0%

Silt

36,5%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,2
Org. C
8,2g/kg
Clay
13,8%
Sand
49,2%
Silt
37,0%
5–15 cm
pH H₂O
8,2
Org. C
7,5g/kg
Clay
15,0%
Sand
48,5%
Silt
36,5%
15–30 cm
pH H₂O
8,2
Org. C
7,4g/kg
Clay
17,7%
Sand
46,3%
Silt
36,0%

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

Land cover

Forest1.1%
Crops3.3%
Built-up0.0%
Bare soil89.7%
Other (grassland, water…)5.9%

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

Hydrology7 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

17,1km

Basins crossed

7

Max stream order

5

Max drainage

8 867km²

Discharge in basins

0,7m³/s

Mean precip.

143mm/an

Mean T°

20,6°C

Moisture idx

-0,92

Mean runoff

6mm/an

Mean elev. (basins)

1 521m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

0,5%

Pesticides

0,4kg/km²

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