Commune · CHN
Luannan
China
Species observed
322
Observations
26 948
Area
1 620km²
Ecological tissue
Sample of 24 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 Luannan : 19 espèces reliées par 29 interactions GloBI sur 2 types (connectance 10.5%, 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
322 distinct species · 26 948 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,2°C
Annual rain
588mm
Warmest m°
29,1°C
Coldest m°
-7,8°C
Elevation: 9 m on average (min -6 m, max 35 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
7,7
Org. C
9,3g/kg
Clay
23,2%
Sand
44,8%
Silt
32,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Tangshan
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)
Hydrology5 basins · 42 lakes · 23 rivers
Hydrology metrics for this exact territory
Stream length here
324,0km
Lake surface here
337,18km²
Basins crossed
5
Max stream order
6
Max drainage
45 725km²
Discharge in basins
7,6m³/s
Mean precip.
624mm/an
Mean T°
11,1°C
Moisture idx
-0,39
Max snow
3%
Mean runoff
58mm/an
Mean elev. (basins)
15m
Watersheds crossing here
Lakes (42, top by area)
- Lake #1328area118,9 km²avg depth1.0 m
- 落潮湾水库area92,4 km²avg depth1.0 m
- Lake #14633area44 km²avg depth1.0 m
- 青龙湖area41,9 km²avg depth1.0 m
- Lake #14619area34,7 km²avg depth1.0 m
- Lake #14628area27,2 km²avg depth1.0 m
- Lake #14639area27,1 km²avg depth1.0 m
- Lake #14616area20,6 km²avg depth1.0 m
- Lake #14627area18,8 km²avg depth1.0 m
33 more lakes
- Lake #14634area18,1 km²avg depth1.0 m
- Lake #14631area16,1 km²avg depth1.0 m
- Lake #14622area12,2 km²avg depth1.0 m
- Lake #14640area11,4 km²avg depth1.0 m
- Lake #73188area6,9 km²avg depth0.6 m
- Lake #73153area5 km²avg depth0.8 m
- Lake #73151area4,8 km²avg depth0.5 m
- Lake #73146area3,9 km²avg depth0.7 m
- Lake #73194area3,3 km²avg depth0.7 m
- Lake #73195area3,3 km²avg depth0.6 m
- Lake #73136area3,3 km²avg depth0.7 m
- Lake #73137area3,2 km²avg depth0.6 m
- Lake #73145area3,1 km²avg depth0.8 m
- Lake #73138area2,3 km²avg depth0.5 m
- Lake #73150area1,9 km²avg depth0.6 m
- Lake #73141area1,8 km²avg depth0.5 m
- Lake #73140area1,8 km²avg depth0.5 m
- Lake #73113area1,8 km²avg depth0.5 m
- Lake #73101area1,5 km²avg depth0.7 m
- Lake #73093area1,5 km²avg depth0.5 m
- Lake #73147area1,3 km²avg depth0.5 m
- Lac 1367704area0,9 km²avg depth1.5 m
- Lac 1367930area0,9 km²avg depth1.3 m
- Lac 1367681area0,8 km²avg depth1.0 m
- Lac 1367597area0,6 km²avg depth1.1 m
- Lac 1367315area0,3 km²avg depth2.4 m
- Lac 1367692area0,3 km²avg depth1.4 m
- Lac 1367653area0,2 km²avg depth1.3 m
- Lac 1367311area0,2 km²avg depth2.2 m
- Lac 1367265area0,2 km²avg depth2.2 m
- Lac 1367283area0,2 km²avg depth2.2 m
- Lac 1367297area0,1 km²avg depth1.4 m
- Lac 1367287area0,1 km²avg depth1.9 m
Rivers / streams (23, ord ≥ 4)
- 小青龙河ord 2len here37.09 km69%total54 km
- 小青河ord 3len here35.37 km100%total35 km
- 双龙河ord 2len here33.97 km62%total55 km
- 小戟门河ord 2len here24.19 km45%total53 km
- 溯河ord 2len here21.67 km82%total26 km
- 北河ord 3len here19.61 km100%total20 km
- 蒿坨排干ord 1len here19.20 km100%total19 km
- 青龙河ord 2len here18.58 km54%total34 km
- 落二扬ord 3len here17.33 km71%total24 km
- 滦柏输水干渠ord 2len here14.66 km100%total15 km
- 新河西支ord 1len here13.92 km60%total23 km
- 三排干ord 1len here10.91 km73%total15 km
11 more river segmentssorted by Strahler order + length
- 滦河ord 6len here10.47 km1%total1205 km
- 溯河ord 3len here9.43 km100%total9 km
- 溯河四排干ord 1len here7.25 km100%total7 km
- 新河ord 1len here6.98 km53%total13 km
- 双龙河ord 2len here6.05 km100%total6 km
- 六九排支ord 2len here5.39 km100%total5 km
- 溯河ord 2len here4.85 km60%total8 km
- 青龙河西支渠ord 2len here3.41 km72%total5 km
- 岳家河ord 1len here2.32 km14%total17 km
- 溯河二排干ord 1len here1.24 km100%total1 km
- 一斗斗渠ord 2len here0.09 km1%total8 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
1,9nW
Built-up
340,1%
Pesticides
71,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)