Commune · CHN
Chun'an
China
Species observed
1 611
Observations
7 403
Area
4 430,3km²
Ecological tissue
Sample of 40 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 Chun'an : 35 espèces reliées par 42 interactions GloBI sur 4 types (connectance 5.4%, 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
1 611 distinct species · 7 403 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
16,4°C
Annual rain
2 002mm
Warmest m°
31,0°C
Coldest m°
0,7°C
Elevation: 354 m on average (min 99 m, max 1 229 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
5,4
Org. C
30,0g/kg
Clay
27,1%
Sand
32,3%
Silt
40,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Hangzhou
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 · 8 lakes · 28 rivers
Hydrology metrics for this exact territory
Stream length here
830,3km
Lake surface here
421,96km²
Basins crossed
14
Max stream order
6
Max drainage
11 703km²
Discharge in basins
684,6m³/s
Mean precip.
1 645mm/an
Mean T°
15,5°C
Moisture idx
0,35
Mean runoff
1 038mm/an
Mean elev. (basins)
371m
Watersheds crossing here
- Bassin de 武强溪sub-area1 890,6 km²overlap1716.09 km²39%
- Bassin de 东源港sub-area1 002,5 km²overlap994.56 km²22%
- Bassin de 新安江sub-area1 480,2 km²overlap919.80 km²21%
- Bassin de 新安江sub-area1 912,3 km²overlap640.59 km²14%
- Bassin de 新安江sub-area75,2 km²overlap75.13 km²2%
- Bassin de 天目溪sub-area410,6 km²overlap26.69 km²1%
- Bassin de 分水江sub-area304,9 km²overlap19.81 km²0%
- Bassin de 分水江sub-area335,1 km²overlap15.67 km²0%
- Bassin de 马金溪sub-area1 002,3 km²overlap13.67 km²0%
Lakes (8, top by area)
Rivers / streams (28, ord ≥ 4)
- 新安江ord 6len here120.93 km22%total540 km
- 武强溪ord 4len here97.96 km100%total98 km
- 东源港ord 4len here72.04 km100%total72 km
- 清平源ord 6len here48.65 km100%total49 km
- 云源港ord 3len here46.44 km100%total46 km
- 瑶山溪ord 3len here44.60 km100%total45 km
- 郁川ord 2len here43.24 km100%total43 km
- 白马溪ord 3len here40.17 km100%total40 km
- 梓桐源ord 3len here36.04 km100%total36 km
- 铜山溪ord 2len here31.84 km94%total34 km
- 樟村溪ord 3len here26.69 km93%total29 km
- 凤林港ord 3len here26.56 km100%total27 km
16 more river segmentssorted by Strahler order + length
- 秋溪ord 4len here24.47 km100%total25 km
- 秋源ord 3len here22.34 km100%total22 km
- 七都源ord 3len here20.95 km100%total21 km
- 龙溪ord 2len here20.48 km100%total21 km
- 六都源ord 3len here17.72 km100%total18 km
- 太平源ord 3len here16.01 km100%total16 km
- 主川溪ord 2len here14.47 km100%total14 km
- 上坊溪ord 2len here9.76 km100%total10 km
- 横塘源ord 1len here9.53 km100%total10 km
- 乘风源ord 1len here8.43 km100%total8 km
- 山后源ord 1len here7.24 km100%total7 km
- 横沿溪ord 1len here6.82 km100%total7 km
- 石狮河ord 1len here6.72 km100%total7 km
- 兰川溪ord 1len here6.20 km100%total6 km
- 塘坞溪ord 2len here3.06 km23%total14 km
- 石塘坑溪ord 1len here0.92 km100%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,2nW
Built-up
26,5%
Pesticides
79,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)