Ontologia

District · YEM

As Silw

Yemen

BShArid, steppe, hot(77 %)

Species observed

4

Observations

491

Area

82,3km²

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

4 distinct species · 491 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

491 obs · 1 cellules
Obs. / cellule
≥ 491
491–490
491–490
491–490
< 491

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

Climate

Mean T°

20,5°C

Annual rain

513mm

Warmest m°

29,4°C

Coldest m°

11,7°C

Elevation: 1 633 m on average (min 1 111 m, max 2 130 m)

Bioclimatic detailsExpert
Annual mean temp.
20,5°C
Annual rain
513mm
Warmest month
29,4°C
Coldest month
11,7°C
Mean alt.
1 633m
Min
1 111m
Max
2 130m
Std. dev.
263m
Köppen-Geiger (dominant)
BShArid, steppe, hot(77 %)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

23,0g/kg

Clay

33,5%

Sand

28,2%

Silt

38,2%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
31,7g/kg
Clay
31,9%
Sand
29,5%
Silt
38,5%
5–15 cm
pH H₂O
7,6
Org. C
21,8g/kg
Clay
33,3%
Sand
28,3%
Silt
38,4%
15–30 cm
pH H₂O
7,6
Org. C
15,5g/kg
Clay
35,3%
Sand
26,9%
Silt
37,7%

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

Land cover

Forest8.2%
Crops15.6%
Built-up0.1%
Bare soil1.9%
Other (grassland, water…)74.2%

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

1 938km²

Discharge in basins

0,2m³/s

Mean precip.

360mm/an

Mean T°

23,7°C

Moisture idx

-0,80

Mean runoff

81mm/an

Mean elev. (basins)

1 267m

Watersheds crossing here

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

Human pressure

Pop. density

25hab/km²

Night light

0,0nW

Built-up

5,4%

Pesticides

1,0kg/km²

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