Ontologia

Commune · CHN

Arun

China

DwbCold, dry winter, warm summer(82 %)

Species observed

212

Observations

301

Area

11 089,2km²

Ecological tissue

Sample of 15 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 Arun : 12 espèces reliées par 16 interactions GloBI sur 3 types (connectance 13.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
16
Connectance
0.133
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

212 distinct species · 301 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

301 obs · 27 cellules
Obs. / cellule
≥ 227
4–226
2–3
1–1
< 1

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

Climate

Mean T°

1,5°C

Annual rain

540mm

Warmest m°

24,7°C

Coldest m°

-24,7°C

Elevation: 469 m on average (min 197 m, max 1 088 m)

Bioclimatic detailsExpert
Annual mean temp.
1,5°C
Annual rain
540mm
Warmest month
24,7°C
Coldest month
-24,7°C
Mean alt.
469m
Min
197m
Max
1 088m
Std. dev.
175m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(82 %)Cold

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

Soil & lithology

pH H₂O

6,7

Org. C

47,6g/kg

Clay

25,4%

Sand

33,2%

Silt

41,4%

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

Dominant lithology: paGLiMaggregated to Hulunbuir

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
74,5g/kg
Clay
24,6%
Sand
33,6%
Silt
41,7%
5–15 cm
pH H₂O
6,7
Org. C
42,5g/kg
Clay
25,1%
Sand
33,3%
Silt
41,6%
15–30 cm
pH H₂O
6,7
Org. C
25,7g/kg
Clay
26,5%
Sand
32,8%
Silt
40,7%

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

Land cover

Forest35.5%
Crops28.1%
Built-up0.2%
Bare soil0.3%
Other (grassland, water…)35.9%

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

Hydrology31 basins · 10 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

479,4km

Lake surface here

5,27km²

Basins crossed

31

Max stream order

5

Max drainage

25 741km²

Discharge in basins

91,5m³/s

Mean precip.

486mm/an

Mean T°

0,2°C

Moisture idx

-0,35

Max snow

22%

Mean runoff

113mm/an

Mean elev. (basins)

459m

Watersheds crossing here

22 more basins

Lakes (10, top by area)

1 more lakes

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

20,0%

Pesticides

52,0kg/km²

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