Ontologia

Commune · CHN

Helong

China

DwbCold, dry winter, warm summer(96 %)

Species observed

758

Observations

2 238

Area

5 047,1km²

Ecological tissue

Sample of 8 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Helong : 7 espèces reliées par 6 interactions GloBI sur 2 types (connectance 21.4%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
8
Interactions affichées
6
Connectance
0.214
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

758 distinct species · 2 238 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 238 obs · 39 cellules
Obs. / cellule
≥ 938
83–937
9–82
3–8
< 3

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

3,6°C

Annual rain

822mm

Warmest m°

23,2°C

Coldest m°

-21,8°C

Elevation: 840 m on average (min 264 m, max 1 472 m)

Bioclimatic detailsExpert
Annual mean temp.
3,6°C
Annual rain
822mm
Warmest month
23,2°C
Coldest month
-21,8°C
Mean alt.
840m
Min
264m
Max
1 472m
Std. dev.
249m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(96 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,0

Org. C

57,4g/kg

Clay

21,3%

Sand

36,1%

Silt

42,6%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: paGLiMaggregated to Yanbian Korean

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
96,9g/kg
Clay
21,8%
Sand
33,8%
Silt
44,4%
5–15 cm
pH H₂O
6,0
Org. C
47,7g/kg
Clay
20,7%
Sand
36,6%
Silt
42,7%
15–30 cm
pH H₂O
6,0
Org. C
27,5g/kg
Clay
21,4%
Sand
38,0%
Silt
40,6%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest79.2%
Crops9.2%
Built-up0.2%
Bare soil0.2%
Other (grassland, water…)11.2%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology18 basins · 2 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

505,1km

Lake surface here

2,57km²

Basins crossed

18

Max stream order

5

Max drainage

9 022km²

Discharge in basins

208,9m³/s

Mean precip.

676mm/an

Mean T°

2,1°C

Moisture idx

-0,12

Max snow

37%

Mean runoff

257mm/an

Mean elev. (basins)

870m

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

17,0%

Pesticides

53,3kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)