Commune · CHN
Qin'an
China
Species observed
67
Observations
92
Area
1 614,5km²
Ecological tissue
Sample of 13 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 Qin'an : 12 espèces reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
67 distinct species · 92 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,5°C
Annual rain
550mm
Warmest m°
25,7°C
Coldest m°
-9,7°C
Elevation: 1 617 m on average (min 1 213 m, max 1 928 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
7,8
Org. C
22,3g/kg
Clay
25,5%
Sand
24,6%
Silt
50,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Tianshui
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 · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
231,7km
Basins crossed
6
Max stream order
5
Max drainage
23 607km²
Discharge in basins
19,0m³/s
Mean precip.
556mm/an
Mean T°
8,8°C
Moisture idx
-0,42
Max snow
1%
Mean runoff
88mm/an
Mean elev. (basins)
1 687m
Watersheds crossing here
Rivers / streams (9, ord ≥ 4)
- 葫芦河ord 5len here83.25 km10%total794 km
- 郭嘉河ord 3len here41.25 km100%total41 km
- 马家河ord 3len here36.63 km65%total56 km
- 杜家河ord 2len here33.00 km76%total43 km
- 南小河ord 5len here29.75 km100%total30 km
- 四坪河ord 1len here4.18 km67%total6 km
- 牛谷河ord 4len here2.27 km2%total93 km
- 散渡河ord 5len here0.91 km1%total92 km
- 水洛河ord 4len here0.46 km1%total75 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,3nW
Built-up
68,2%
Pesticides
68,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)