Commune · CHN
Chengkou
China
Species observed
3 229
Observations
50 163
Area
3 290,9km²
Ecological tissue
Sample of 8 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 Chengkou : 8 espèces reliées par 4 interactions GloBI sur 1 type (connectance 14.3%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
3 229 distinct species · 50 163 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,5°C
Annual rain
1 678mm
Warmest m°
23,9°C
Coldest m°
-6,4°C
Elevation: 1 541 m on average (min 633 m, max 2 445 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
6,0
Org. C
38,6g/kg
Clay
28,2%
Sand
26,7%
Silt
45,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Chongqing
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)
Hydrology13 basins · 0 lakes · 12 rivers
Hydrology metrics for this exact territory
Stream length here
439,5km
Basins crossed
13
Max stream order
5
Max drainage
33 629km²
Discharge in basins
114,7m³/s
Mean precip.
1 238mm/an
Mean T°
11,4°C
Moisture idx
0,24
Max snow
8%
Mean runoff
642mm/an
Mean elev. (basins)
1 400m
Watersheds crossing here
- Bassin de 任河sub-area1 218,8 km²overlap1198.37 km²36%
- Bassin de 前河sub-area2 726,2 km²overlap713.26 km²22%
- Bassin de 坪坝河sub-area394,8 km²overlap391.32 km²12%
- Bassin de 任河sub-area357,3 km²overlap333.55 km²10%
- Bassin de 任河sub-area318,4 km²overlap315.34 km²10%
- Bassin de 后河sub-area3 627,1 km²overlap173.45 km²5%
- Bassin de 任河sub-area584,9 km²overlap130.16 km²4%
- Bassin de 汉江sub-area1 903,3 km²overlap17.33 km²1%
- Bassin de 岚河sub-area2 117 km²overlap7.15 km²0%
Rivers / streams (12, ord ≥ 4)
- 任河ord 5len here159.69 km51%total314 km
- 前河ord 4len here82.56 km22%total381 km
- 岚溪河ord 2len here31.36 km90%total35 km
- 中河ord 4len here29.78 km9%total314 km
- 石溪河ord 2len here27.91 km90%total31 km
- 坪坝河ord 3len here27.24 km100%total27 km
- 汉昌河ord 3len here19.31 km100%total19 km
- 姚家河ord 3len here18.28 km37%total50 km
- 岔溪河ord 3len here14.44 km100%total14 km
- 菜子坝河ord 2len here13.34 km100%total13 km
- 黄溪河ord 4len here8.35 km71%total12 km
- 左岸河ord 5len here7.24 km43%total17 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
4,1%
Pesticides
83,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)