Ontologia

Commune · CHN

Nilka

China

BSkArid, steppe, cold(37 %)

Species observed

374

Observations

1 066

Area

10 327,7km²

Ecological tissue

Sample of 33 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 Nilka : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) + 4 bulles famille, 46 interactions GloBI documentées sur 5 types (connectance 8.7%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
33
Interactions affichées
46
Connectance
0.087
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

374 distinct species · 1 066 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 066 obs · 73 cellules
Obs. / cellule
≥ 260
28–259
6–27
2–5
< 2

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

Climate

Mean T°

-0,3°C

Annual rain

445mm

Warmest m°

17,1°C

Coldest m°

-18,0°C

Elevation: 2 251 m on average (min 758 m, max 4 226 m)

Bioclimatic detailsExpert
Annual mean temp.
-0,3°C
Annual rain
445mm
Warmest month
17,1°C
Coldest month
-18,0°C
Mean alt.
2 251m
Min
758m
Max
4 226m
Std. dev.
833m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(37 %)Arid

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

Soil & lithology

pH H₂O

7,3

Org. C

44,6g/kg

Clay

22,6%

Sand

31,9%

Silt

45,5%

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

Dominant lithology: paGLiMaggregated to Ili Kazakh

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,2
Org. C
70,1g/kg
Clay
21,5%
Sand
32,3%
Silt
46,1%
5–15 cm
pH H₂O
7,3
Org. C
37,0g/kg
Clay
22,6%
Sand
31,9%
Silt
45,5%
15–30 cm
pH H₂O
7,4
Org. C
26,8g/kg
Clay
23,7%
Sand
31,4%
Silt
44,9%

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

Land cover

Forest7.4%
Crops8.1%
Built-up0.1%
Bare soil8.3%
Other (grassland, water…)76.1%

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

Hydrology38 basins · 1 lakes · 25 rivers

Hydrology metrics for this exact territory

Stream length here

1 212,9km

Lake surface here

0,15km²

Basins crossed

38

Max stream order

5

Max drainage

50 003km²

Discharge in basins

30,0m³/s

Mean precip.

305mm/an

Mean T°

-1,0°C

Moisture idx

-0,49

Max snow

63%

Mean runoff

8mm/an

Mean elev. (basins)

2 200m

Watersheds crossing here

29 more basins

Lakes (1, top by area)

Rivers / streams (25, ord ≥ 4)

13 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

11,0%

Pesticides

40,0kg/km²

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