Ontologia

Commune · CHN

Zhengzhou

China

CwaTemperate, dry winter, hot summer(100 %)

Species observed

599

Observations

3 534

Area

1 057,8km²

Ecological tissue

Sample of 38 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Zhengzhou : 28 espèces reliées par 67 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
67
Connectance
0.090
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

599 distinct species · 3 534 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 534 obs · 32 cellules
Obs. / cellule
≥ 652
293–651
89–292
50–88
< 50

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

Climate

Mean T°

15,1°C

Annual rain

633mm

Warmest m°

31,5°C

Coldest m°

-4,1°C

Elevation: 110 m on average (min 82 m, max 249 m)

Bioclimatic detailsExpert
Annual mean temp.
15,1°C
Annual rain
633mm
Warmest month
31,5°C
Coldest month
-4,1°C
Mean alt.
110m
Min
82m
Max
249m
Std. dev.
30m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

7,9

Org. C

11,5g/kg

Clay

21,8%

Sand

30,8%

Silt

47,4%

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

Dominant lithology: ssGLiMaggregated to Zhengzhou

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
17,2g/kg
Clay
21,2%
Sand
31,7%
Silt
47,1%
5–15 cm
pH H₂O
7,9
Org. C
9,7g/kg
Clay
21,7%
Sand
30,8%
Silt
47,4%
15–30 cm
pH H₂O
8,0
Org. C
7,6g/kg
Clay
22,3%
Sand
29,8%
Silt
47,8%

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

Land cover

Forest5.1%
Crops21.3%
Built-up12.1%
Bare soil3.7%
Other (grassland, water…)57.8%

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

Hydrology8 basins · 6 lakes · 14 rivers

Hydrology metrics for this exact territory

Stream length here

229,9km

Lake surface here

3,10km²

Basins crossed

8

Max stream order

8

Max drainage

734 701km²

Discharge in basins

768,2m³/s

Mean precip.

642mm/an

Mean T°

14,3°C

Moisture idx

-0,46

Max snow

1%

Mean runoff

63mm/an

Mean elev. (basins)

142m

Watersheds crossing here

Lakes (6, top by area)

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

Human pressure

Pop. density

34hab/km²

Night light

22,2nW

Built-up

1 210,6%

Pesticides

73,5kg/km²

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