Commune · CHN
Huan
China
Species observed
166
Observations
310
Area
9 294,3km²
Ecological tissue
Sample of 17 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 Huan : 15 espèces reliées par 17 interactions GloBI sur 2 types (connectance 12.5%, filtre Serrano α=0.2). 2 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
166 distinct species · 310 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,4°C
Annual rain
449mm
Warmest m°
26,1°C
Coldest m°
-11,2°C
Elevation: 1 571 m on average (min 1 174 m, max 2 021 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
8,2
Org. C
15,3g/kg
Clay
20,2%
Sand
34,4%
Silt
45,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Qingyang
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)
Hydrology25 basins · 0 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
734,3km
Basins crossed
25
Max stream order
5
Max drainage
10 598km²
Discharge in basins
19,8m³/s
Mean precip.
411mm/an
Mean T°
7,9°C
Moisture idx
-0,58
Max snow
2%
Mean runoff
17mm/an
Mean elev. (basins)
1 553m
Watersheds crossing here
- Bassin de 马连河sub-area2 049,2 km²overlap1774.69 km²19%
- Bassin de 合道川sub-area924,5 km²overlap924.66 km²10%
- Bassin de 马坊川sub-area867 km²overlap867.28 km²9%
- Bassin de 东川sub-area2 588,2 km²overlap746.98 km²8%
- Bassin de 马连河sub-area693,5 km²overlap693.67 km²7%
- Bassin de 马连河sub-area604 km²overlap599.81 km²6%
- Bassin de 城川sub-area477,2 km²overlap477.28 km²5%
- Bassin de 折死沟sub-area1 869,5 km²overlap434.95 km²5%
- Basin #81080sub-area557,1 km²overlap361.27 km²4%
16 more basinssorted by overlap
- Bassin de 马连河sub-area360 km²overlap360.13 km²4%
- Bassin de 马连河sub-area1 712,2 km²overlap356.87 km²4%
- Bassin de 蒲河sub-area329,3 km²overlap259.05 km²3%
- Bassin de 黑河sub-area926,7 km²overlap253.45 km²3%
- Bassin de 甜水河sub-area686,9 km²overlap216.85 km²2%
- Bassin de 清水河sub-area2 414,3 km²overlap198.60 km²2%
- Bassin de 元城川sub-area397,1 km²overlap198.33 km²2%
- Bassin de 马连河sub-area168,3 km²overlap168.30 km²2%
- Bassin de 马连河sub-area154,8 km²overlap154.83 km²2%
- Bassin de 蒲河sub-area880,5 km²overlap132.20 km²1%
- Basin #36360sub-area1 162,4 km²overlap59.21 km²1%
- Bassin de 茹河sub-area1 150,2 km²overlap38.97 km²0%
- Bassin de 马连河sub-area614,8 km²overlap7.15 km²0%
- Bassin de 蒲河sub-area486,2 km²overlap4.63 km²0%
- Bassin de 元城川sub-area271,1 km²overlap4.57 km²0%
- Bassin de 蒲河sub-area75,2 km²overlap0.57 km²0%
Rivers / streams (8, ord ≥ 4)
- 马连河ord 5len here273.38 km49%total563 km
- 合道川ord 3len here119.23 km100%total119 km
- 东川ord 4len here108.49 km60%total181 km
- 马坊川ord 3len here104.70 km100%total105 km
- 城川ord 5len here83.46 km100%total83 km
- 玄成沟ord 2len here39.25 km100%total39 km
- 马坊沟ord 2len here3.06 km18%total17 km
- 甜水河ord 3len here2.72 km4%total78 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,3nW
Built-up
5,3%
Pesticides
68,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)