Commune · CHN
Shimian
China
Species observed
1 631
Observations
12 318
Area
2 656,8km²
Ecological tissue
Sample of 14 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 Shimian : 10 espèces reliées par 10 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 4 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
1 631 distinct species · 12 318 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,1°C
Annual rain
1 836mm
Warmest m°
19,2°C
Coldest m°
-7,9°C
Elevation: 2 459 m on average (min 869 m, max 5 220 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
5,7
Org. C
45,5g/kg
Clay
23,6%
Sand
36,8%
Silt
39,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Ya'an
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)
Hydrology14 basins · 0 lakes · 19 rivers
Hydrology metrics for this exact territory
Stream length here
387,4km
Basins crossed
14
Max stream order
6
Max drainage
66 516km²
Discharge in basins
2 752,6m³/s
Mean precip.
1 032mm/an
Mean T°
8,6°C
Moisture idx
0,09
Max snow
19%
Mean runoff
608mm/an
Mean elev. (basins)
2 786m
Watersheds crossing here
- Bassin de 南桠河sub-area1 193 km²overlap822.46 km²31%
- Bassin de 大渡河sub-area490,4 km²overlap407.18 km²15%
- Bassin de 田湾沟sub-area1 443,9 km²overlap393.91 km²15%
- Bassin de 安顺河sub-area1 453,2 km²overlap257.78 km²10%
- Bassin de 大渡河sub-area308,9 km²overlap251.90 km²9%
- Bassin de 大渡河sub-area233,9 km²overlap233.19 km²9%
- Bassin de 大渡河sub-area344,2 km²overlap211.25 km²8%
- Bassin de 大渡河sub-area2 176,4 km²overlap71.86 km²3%
- Bassin de 安宁河sub-area2 155,3 km²overlap3.25 km²0%
Rivers / streams (19, ord ≥ 4)
- 大渡河ord 7len here109.84 km14%total802 km
- 南桠河ord 3len here59.50 km85%total70 km
- 田湾沟ord 4len here32.68 km39%total83 km
- 安顺河ord 4len here29.22 km22%total133 km
- 黑姆乃简沟ord 2len here28.74 km100%total29 km
- 老鹰沟ord 2len here19.79 km100%total20 km
- 大沟ord 2len here17.16 km45%total38 km
- 喇嘛沟ord 4len here16.12 km100%total16 km
- 海流河ord 2len here15.39 km100%total15 km
- 大泥口沟ord 1len here15.15 km100%total15 km
- 唐家沟ord 4len here9.38 km100%total9 km
- 阿鲁伦底河ord 2len here8.77 km100%total9 km
7 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,2nW
Built-up
4,8%
Pesticides
59,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)