Commune · CHN
Zhangjiakou
China
Species observed
134
Observations
236
Area
420,9km²
Ecological tissue
Sample of 35 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).
Indicateurs du tissu écologique
Tissu écologique de Zhangjiakou : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
134 distinct species · 236 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,6°C
Annual rain
369mm
Warmest m°
29,1°C
Coldest m°
-15,5°C
Elevation: 810 m on average (min 584 m, max 1 432 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
8,1
Org. C
12,8g/kg
Clay
24,5%
Sand
36,8%
Silt
38,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Zhangjiakou
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
68,3km
Basins crossed
4
Max stream order
5
Max drainage
13 837km²
Discharge in basins
1,3m³/s
Mean precip.
410mm/an
Mean T°
6,3°C
Moisture idx
-0,54
Max snow
2%
Mean runoff
16mm/an
Mean elev. (basins)
1 144m
Watersheds crossing here
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
15hab/km²
Night light
10,4nW
Built-up
758,7%
Pesticides
71,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)