Ontologia

Commune · DZA

Madna

Algeria

BSkArid, steppe, cold(100 %)

Species observed

0

Observations

0

Area

515,1km²

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

0 distinct species · 0 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

0 obs · 0 cellules

Aucune observation géoréférencée précise (<10 km) dans ce territoire.

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

15,6°C

Annual rain

306mm

Warmest m°

34,8°C

Coldest m°

0,9°C

Elevation: 1 061 m on average (min 944 m, max 1 132 m)

Bioclimatic detailsExpert
Annual mean temp.
15,6°C
Annual rain
306mm
Warmest month
34,8°C
Coldest month
0,9°C
Mean alt.
1 061m
Min
944m
Max
1 132m
Std. dev.
32m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(100 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

12,9g/kg

Clay

25,4%

Sand

41,1%

Silt

33,5%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
17,6g/kg
Clay
23,8%
Sand
42,1%
Silt
34,0%
5–15 cm
pH H₂O
7,5
Org. C
12,3g/kg
Clay
24,9%
Sand
41,1%
Silt
34,0%
15–30 cm
pH H₂O
7,6
Org. C
8,9g/kg
Clay
27,5%
Sand
40,0%
Silt
32,5%

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

Land cover

Forest3.3%
Crops27.7%
Built-up0.1%
Bare soil14.4%
Other (grassland, water…)54.6%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

2 601km²

Discharge in basins

0,3m³/s

Mean precip.

362mm/an

Mean T°

15,0°C

Moisture idx

-0,68

Mean runoff

17mm/an

Mean elev. (basins)

982m

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

6,9%

Pesticides

0,1kg/km²

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

Protected areas1

IUCN Not Reported · 1

Chott ech Chergui

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2001

8 471 km²

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