Commune · CHN
Changsha Xiàn
China
Species observed
1 792
Observations
6 361
Area
2 101,1km²
Ecological tissue
Sample of 26 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 Changsha Xiàn : 20 espèces reliées par 26 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 7 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
1 792 distinct species · 6 361 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
18,0°C
Annual rain
1 709mm
Warmest m°
32,7°C
Coldest m°
1,7°C
Elevation: 81 m on average (min 29 m, max 504 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
6,1
Org. C
20,0g/kg
Clay
30,9%
Sand
23,2%
Silt
45,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Changsha
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)
Hydrology11 basins · 15 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
262,7km
Lake surface here
4,50km²
Basins crossed
11
Max stream order
7
Max drainage
92 261km²
Discharge in basins
645,8m³/s
Mean precip.
1 447mm/an
Mean T°
17,3°C
Moisture idx
0,20
Max snow
4%
Mean runoff
776mm/an
Mean elev. (basins)
110m
Watersheds crossing here
- Bassin de 捞刀河sub-area2 553,6 km²overlap1304.06 km²62%
- Bassin de 浏阳河sub-area482 km²overlap314.98 km²15%
- Bassin de 榨山港sub-area209,4 km²overlap206.44 km²10%
- Bassin de 湘江sub-area571,8 km²overlap98.29 km²5%
- Bassin de 湄江河sub-area344,1 km²overlap85.24 km²4%
- Bassin de 圭塘河sub-area197,9 km²overlap39.78 km²2%
- Bassin de 八曲河sub-area920 km²overlap25.97 km²1%
- Bassin de 湘江sub-area636,3 km²overlap21.33 km²1%
- Bassin de 汨羅江sub-area592,4 km²overlap4.11 km²0%
2 more basinssorted by overlap
Lakes (15, top by area)
- Lac 1381499area1 km²avg depth4.5 m
- Lac 1381292area0,8 km²avg depth4.1 m
- Lac 1381358area0,5 km²avg depth5.0 m
- Lac 1381659area0,3 km²avg depth2.6 m
- Lac 1381773area0,3 km²avg depth55.5 m
- Lac 1381698area0,3 km²avg depth3.0 m
- Lac 1381699area0,3 km²avg depth3.0 m
- Lac 1381824area0,2 km²avg depth4.3 m
- Lac 1381843area0,2 km²avg depth3.8 m
Rivers / streams (11, ord ≥ 4)
- 捞刀河ord 4len here66.74 km34%total198 km
- 白沙河ord 4len here53.45 km21%total251 km
- 浏阳河ord 5len here47.52 km12%total409 km
- 金井河ord 4len here28.08 km52%total54 km
- 湘江ord 8len here22.94 km1%total1860 km
- 榨山港ord 3len here21.48 km100%total22 km
- 双溪河ord 2len here6.93 km55%total13 km
- 双江口河ord 3len here5.89 km33%total18 km
- 开慧河ord 1len here5.16 km100%total5 km
- 圭塘河ord 2len here4.30 km15%total30 km
- 杨家湾渠ord 1len here0.17 km19%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
4hab/km²
Night light
4,9nW
Built-up
323,7%
Pesticides
76,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)