Ontologia

Commune · CHN

Hejian

China

BSkArid, steppe, cold(100 %)

Species observed

7

Observations

14

Area

1 324,8km²

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

7 distinct species · 14 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 obs · 5 cellules
Obs. / cellule
≥ 6
6–5
3–5
2–2
< 2

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

Climate

Mean T°

13,8°C

Annual rain

531mm

Warmest m°

31,6°C

Coldest m°

-7,2°C

Elevation: 9 m on average (min 5 m, max 13 m)

Bioclimatic detailsExpert
Annual mean temp.
13,8°C
Annual rain
531mm
Warmest month
31,6°C
Coldest month
-7,2°C
Mean alt.
9m
Min
5m
Max
13m
Std. dev.
1m
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

8,0

Org. C

8,0g/kg

Clay

25,6%

Sand

26,1%

Silt

48,3%

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

Dominant lithology: suGLiMaggregated to Cangzhou

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
9,9g/kg
Clay
24,4%
Sand
26,9%
Silt
48,7%
5–15 cm
pH H₂O
8,1
Org. C
6,7g/kg
Clay
25,1%
Sand
26,1%
Silt
48,8%
15–30 cm
pH H₂O
8,1
Org. C
7,4g/kg
Clay
27,2%
Sand
25,3%
Silt
47,5%

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

Land cover

Forest4.8%
Crops60.1%
Built-up4.9%
Bare soil2.2%
Other (grassland, water…)28.1%

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

Hydrology7 basins · 1 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

120,5km

Lake surface here

0,24km²

Basins crossed

7

Max stream order

3

Max drainage

53 485km²

Discharge in basins

20,2m³/s

Mean precip.

460mm/an

Mean T°

12,9°C

Moisture idx

-0,58

Max snow

1%

Mean runoff

22mm/an

Mean elev. (basins)

10m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

5hab/km²

Night light

1,8nW

Built-up

486,1%

Pesticides

67,8kg/km²

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