Ontologia

Commune · CHN

Biru

China

ETPolar, tundra(90 %)

Species observed

340

Observations

655

Area

11 223,9km²

Ecological tissue

Sample of 13 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 Biru : 12 espèces reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
13
Interactions affichées
10
Connectance
0.128
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

340 distinct species · 655 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

655 obs · 17 cellules
Obs. / cellule
≥ 502
51–501
7–50
2–6
< 2

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

Climate

Mean T°

-6,1°C

Annual rain

1 086mm

Warmest m°

11,4°C

Coldest m°

-27,5°C

Elevation: 4 856 m on average (min 3 938 m, max 6 366 m)

Bioclimatic detailsExpert
Annual mean temp.
-6,1°C
Annual rain
1 086mm
Warmest month
11,4°C
Coldest month
-27,5°C
Mean alt.
4 856m
Min
3 938m
Max
6 366m
Std. dev.
314m
Köppen-Geiger (dominant)
ETPolar, tundra(90 %)Polar

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

49,3g/kg

Clay

14,0%

Sand

48,1%

Silt

37,9%

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

Dominant lithology: smGLiMaggregated to Nagchu

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
65,1g/kg
Clay
12,8%
Sand
49,1%
Silt
38,1%
5–15 cm
pH H₂O
6,6
Org. C
54,9g/kg
Clay
13,9%
Sand
48,1%
Silt
38,0%
15–30 cm
pH H₂O
6,6
Org. C
27,7g/kg
Clay
15,3%
Sand
47,1%
Silt
37,5%

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

Land cover

Forest1.4%
Crops0.0%
Built-up0.0%
Bare soil27.4%
Other (grassland, water…)71.1%

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

Hydrology34 basins · 10 lakes · 20 rivers

Hydrology metrics for this exact territory

Stream length here

969,1km

Lake surface here

5,77km²

Basins crossed

34

Max stream order

6

Max drainage

44 140km²

Discharge in basins

953,4m³/s

Mean precip.

463mm/an

Mean T°

-2,1°C

Moisture idx

-0,29

Max snow

46%

Mean runoff

361mm/an

Mean elev. (basins)

4 846m

Watersheds crossing here

25 more basins

Rivers / streams (20, ord ≥ 4)

8 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,3%

Pesticides

1,7kg/km²

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