Commune · CHN
Liangdang
China
Species observed
156
Observations
240
Area
1 390,1km²
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 Liangdang : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 4 types (connectance 5.2%, filtre Serrano α=0.2). 3 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
156 distinct species · 240 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,0°C
Annual rain
1 022mm
Warmest m°
24,5°C
Coldest m°
-7,2°C
Elevation: 1 532 m on average (min 868 m, max 2 545 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
6,6
Org. C
29,4g/kg
Clay
22,8%
Sand
30,0%
Silt
47,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Longnan
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)
Hydrology7 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
201,2km
Basins crossed
7
Max stream order
4
Max drainage
7 995km²
Discharge in basins
25,8m³/s
Mean precip.
755mm/an
Mean T°
9,9°C
Moisture idx
-0,18
Max snow
3%
Mean runoff
318mm/an
Mean elev. (basins)
1 566m
Watersheds crossing here
- Bassin de 嘉陵江sub-area1 540,8 km²overlap757.47 km²54%
- Bassin de 红崖河sub-area865,4 km²overlap309.05 km²22%
- Bassin de 沮水河sub-area1 041,5 km²overlap178.02 km²13%
- Bassin de 嘉陵江sub-area1 833,1 km²overlap122.74 km²9%
- Bassin de 永宁河sub-area2 151,1 km²overlap20.10 km²1%
- Bassin de 黑河sub-area527,1 km²overlap1.52 km²0%
- Bassin de 嘉陵江sub-area501,5 km²overlap1.24 km²0%
Rivers / streams (9, ord ≥ 4)
- 嘉陵江ord 8len here48.56 km3%total1680 km
- 两当河ord 2len here44.53 km100%total45 km
- 红崖河ord 3len here36.83 km34%total107 km
- 云屏河ord 2len here31.30 km100%total31 km
- 西安河ord 2len here14.32 km100%total14 km
- 徐杨河ord 3len here12.61 km100%total13 km
- 东沟ord 1len here6.72 km100%total7 km
- 沮水河ord 4len here3.63 km3%total135 km
- 东河ord 5len here2.73 km0%total1043 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
6,6%
Pesticides
61,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)