Commune · CHN
Qianxi
China
Species observed
464
Observations
762
Area
1 410,5km²
Ecological tissue
Sample of 31 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 Qianxi : 26 espèces reliées par 30 interactions GloBI sur 5 types (connectance 6.5%, filtre Serrano α=0.2). 5 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
464 distinct species · 762 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,7°C
Annual rain
638mm
Warmest m°
29,2°C
Coldest m°
-12,2°C
Elevation: 224 m on average (min 67 m, max 561 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
7,4
Org. C
17,4g/kg
Clay
16,9%
Sand
48,0%
Silt
35,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Tangshan
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)
Hydrology6 basins · 5 lakes · 12 rivers
Hydrology metrics for this exact territory
Stream length here
268,0km
Lake surface here
31,33km²
Basins crossed
6
Max stream order
6
Max drainage
38 442km²
Discharge in basins
54,1m³/s
Mean precip.
647mm/an
Mean T°
9,6°C
Moisture idx
-0,36
Max snow
2%
Mean runoff
106mm/an
Mean elev. (basins)
264m
Watersheds crossing here
Lakes (5, top by area)
Rivers / streams (12, ord ≥ 4)
- 滦河ord 6len here82.90 km7%total1205 km
- 长河ord 2len here46.77 km36%total131 km
- 洒河ord 6len here38.61 km51%total75 km
- 还乡河ord 4len here36.78 km19%total189 km
- 横河ord 3len here18.33 km30%total61 km
- 朱家河ord 6len here12.65 km100%total13 km
- 赤道河ord 1len here10.88 km100%total11 km
- 引滦入还水渠ord 1len here5.72 km100%total6 km
- 引滦入津隧洞ord 1len here5.56 km100%total6 km
- 引滦入还水渠ord 2len here5.05 km100%total5 km
- 小草河;引滦入还水渠ord 2len here3.72 km100%total4 km
- 黎河ord 3len here1.08 km1%total87 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
1,0nW
Built-up
183,3%
Pesticides
75,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)