Ontologia

Commune · CHN

Lan

China

DwbCold, dry winter, warm summer(76 %)

Species observed

77

Observations

168

Area

1 490,7km²

Ecological tissue

Sample of 5 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 Lan : 5 espèces reliées par 6 interactions GloBI sur 2 types (connectance 60.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
6
Connectance
0.600
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

77 distinct species · 168 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

168 obs · 4 cellules
Obs. / cellule
≥ 156
156–155
8–155
8–7
< 8

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

Climate

Mean T°

6,2°C

Annual rain

512mm

Warmest m°

25,0°C

Coldest m°

-16,5°C

Elevation: 1 501 m on average (min 1 172 m, max 2 102 m)

Bioclimatic detailsExpert
Annual mean temp.
6,2°C
Annual rain
512mm
Warmest month
25,0°C
Coldest month
-16,5°C
Mean alt.
1 501m
Min
1 172m
Max
2 102m
Std. dev.
227m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(76 %)Cold

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

Soil & lithology

pH H₂O

7,6

Org. C

21,4g/kg

Clay

16,2%

Sand

46,2%

Silt

37,6%

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

Dominant lithology: suGLiMaggregated to Luliang

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
31,1g/kg
Clay
15,6%
Sand
47,1%
Silt
37,3%
5–15 cm
pH H₂O
7,7
Org. C
19,4g/kg
Clay
15,8%
Sand
46,7%
Silt
37,5%
15–30 cm
pH H₂O
7,6
Org. C
13,6g/kg
Clay
17,3%
Sand
44,8%
Silt
38,0%

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

Land cover

Forest23.5%
Crops22.9%
Built-up0.3%
Bare soil1.6%
Other (grassland, water…)51.6%

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

Hydrology7 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

84,3km

Lake surface here

0,21km²

Basins crossed

7

Max stream order

4

Max drainage

414 635km²

Discharge in basins

83,5m³/s

Mean precip.

487mm/an

Mean T°

6,2°C

Moisture idx

-0,50

Max snow

3%

Mean runoff

46mm/an

Mean elev. (basins)

1 410m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,4nW

Built-up

35,4%

Pesticides

69,7kg/km²

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