Ontologia

Commune · DZA

Ouled Riyah

Algeria

CsaTemperate, dry summer, hot summer(70 %)

Species observed

6

Observations

6

Area

91,2km²

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

6 distinct species · 6 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 obs · 1 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°

17,7°C

Annual rain

364mm

Warmest m°

31,8°C

Coldest m°

4,9°C

Elevation: 322 m on average (min 194 m, max 430 m)

Bioclimatic detailsExpert
Annual mean temp.
17,7°C
Annual rain
364mm
Warmest month
31,8°C
Coldest month
4,9°C
Mean alt.
322m
Min
194m
Max
430m
Std. dev.
51m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(70 %)Temperate

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

Soil & lithology

pH H₂O

7,8

Org. C

16,4g/kg

Clay

29,4%

Sand

41,9%

Silt

28,8%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
25,1g/kg
Clay
27,7%
Sand
42,5%
Silt
29,8%
5–15 cm
pH H₂O
7,9
Org. C
12,9g/kg
Clay
29,9%
Sand
41,5%
Silt
28,6%
15–30 cm
pH H₂O
7,9
Org. C
11,3g/kg
Clay
30,5%
Sand
41,6%
Silt
27,9%

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

Land cover

Forest0.5%
Crops60.4%
Built-up0.2%
Bare soil3.9%
Other (grassland, water…)35.0%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

9,9km

Basins crossed

1

Max stream order

5

Max drainage

4 957km²

Discharge in basins

0,4m³/s

Mean precip.

456mm/an

Mean T°

16,9°C

Moisture idx

-0,63

Mean runoff

28mm/an

Mean elev. (basins)

439m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

18,7%

Pesticides

22,0kg/km²

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