Commune · CHN
Longmen
China
Species observed
1 697
Observations
5 731
Area
2 265,9km²
Ecological tissue
Sample of 21 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 Longmen : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 4 types (connectance 6.7%, 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
1 697 distinct species · 5 731 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
21,0°C
Annual rain
2 390mm
Warmest m°
30,2°C
Coldest m°
7,2°C
Elevation: 243 m on average (min 20 m, max 917 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
5,3
Org. C
26,0g/kg
Clay
28,0%
Sand
44,3%
Silt
27,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Huizhou
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 · 12 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
235,7km
Lake surface here
18,00km²
Basins crossed
14
Max stream order
4
Max drainage
29 191km²
Discharge in basins
116,6m³/s
Mean precip.
1 992mm/an
Mean T°
20,8°C
Moisture idx
0,36
Mean runoff
1 131mm/an
Mean elev. (basins)
252m
Watersheds crossing here
- Bassin de 增江sub-area1 054,9 km²overlap1018.51 km²45%
- Bassin de 增江sub-area409,8 km²overlap403.30 km²18%
- Bassin de 增江sub-area501,5 km²overlap400.17 km²18%
- Bassin de 七一桥sub-area246,7 km²overlap236.88 km²10%
- Bassin de 公庄水sub-area1 268,3 km²overlap171.73 km²8%
- Bassin de 新丰江sub-area941,3 km²overlap10.10 km²0%
- Bassin de 增江sub-area121,1 km²overlap9.86 km²0%
- Bassin de 流溪河sub-area4 010,4 km²overlap3.92 km²0%
- Bassin de 派潭河sub-area307,5 km²overlap3.89 km²0%
Lakes (12, top by area)
- Tiantangshan Shuikuarea13,3 km²avg depth18.3 m
- Meizhou Shuikuarea2,5 km²avg depth11.7 m
- Lac 1387748area0,4 km²avg depth3.7 m
- Lac 1387482area0,3 km²avg depth5.2 m
- Lac 1387295area0,3 km²avg depth4.0 m
- Lac 1387572area0,3 km²avg depth6.2 m
- Lac 1387394area0,2 km²avg depth7.2 m
- Lac 1387339area0,2 km²avg depth5.8 m
- Lac 1387794area0,2 km²avg depth6.3 m
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,8nW
Built-up
56,6%
Pesticides
64,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)