Ontologia

District · YEM

Utmah

Yemen

BWhArid, desert, hot(60 %)

Species observed

37

Observations

76

Area

448,7km²

Ecological tissue

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

Species present

37 distinct species · 76 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

76 obs · 8 cellules
Obs. / cellule
≥ 61
61–60
3–60
3–2
< 3

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

Climate

Mean T°

20,2°C

Annual rain

677mm

Warmest m°

28,4°C

Coldest m°

11,4°C

Elevation: 1 717 m on average (min 984 m, max 2 579 m)

Bioclimatic detailsExpert
Annual mean temp.
20,2°C
Annual rain
677mm
Warmest month
28,4°C
Coldest month
11,4°C
Mean alt.
1 717m
Min
984m
Max
2 579m
Std. dev.
368m
Köppen-Geiger (dominant)
BWhArid, desert, hot(60 %)Arid

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

Soil & lithology

pH H₂O

7,6

Org. C

19,5g/kg

Clay

29,6%

Sand

32,5%

Silt

37,8%

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

Dominant lithology: vaGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
24,2g/kg
Clay
28,5%
Sand
33,8%
Silt
37,7%
5–15 cm
pH H₂O
7,6
Org. C
19,0g/kg
Clay
29,3%
Sand
32,6%
Silt
38,1%
15–30 cm
pH H₂O
7,6
Org. C
15,1g/kg
Clay
31,1%
Sand
31,2%
Silt
37,7%

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

Land cover

Forest9.2%
Crops16.3%
Built-up0.0%
Bare soil2.3%
Other (grassland, water…)72.2%

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

Hydrology4 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

45,6km

Basins crossed

4

Max stream order

4

Max drainage

2 518km²

Discharge in basins

1,8m³/s

Mean precip.

354mm/an

Mean T°

20,8°C

Moisture idx

-0,80

Mean runoff

65mm/an

Mean elev. (basins)

1 700m

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

Human pressure

Pop. density

4hab/km²

Night light

0,0nW

Built-up

1,1%

Pesticides

1,0kg/km²

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

Protected areas1

IUCN Not Reported · 1

Utomah PA

IUCN Not Reported

Protected Area · 1999

449 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN