Ontologia

Commune · CHN

Nandan

China

CwaTemperate, dry winter, hot summer(92 %)

Species observed

940

Observations

1 716

Area

3 942,6km²

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 Nandan : 5 espèces reliées par 3 interactions GloBI sur 1 type (connectance 30.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
3
Connectance
0.300
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

940 distinct species · 1 716 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 716 obs · 33 cellules
Obs. / cellule
≥ 960
13–959
6–12
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°

18,0°C

Annual rain

1 579mm

Warmest m°

28,0°C

Coldest m°

4,3°C

Elevation: 756 m on average (min 282 m, max 1 100 m)

Bioclimatic detailsExpert
Annual mean temp.
18,0°C
Annual rain
1 579mm
Warmest month
28,0°C
Coldest month
4,3°C
Mean alt.
756m
Min
282m
Max
1 100m
Std. dev.
156m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(92 %)Temperate

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

28,7g/kg

Clay

29,4%

Sand

25,8%

Silt

44,8%

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

Dominant lithology: scGLiMaggregated to Hechi

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
42,4g/kg
Clay
28,6%
Sand
26,9%
Silt
44,5%
5–15 cm
pH H₂O
6,0
Org. C
28,0g/kg
Clay
29,5%
Sand
25,3%
Silt
45,2%
15–30 cm
pH H₂O
6,0
Org. C
15,7g/kg
Clay
30,1%
Sand
25,1%
Silt
44,9%

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

Land cover

Forest67.4%
Crops6.9%
Built-up0.2%
Bare soil0.4%
Other (grassland, water…)25.1%

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

Hydrology18 basins · 2 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

273,1km

Lake surface here

0,53km²

Basins crossed

18

Max stream order

7

Max drainage

100 245km²

Discharge in basins

2 219,9m³/s

Mean precip.

1 371mm/an

Mean T°

18,4°C

Moisture idx

0,12

Max snow

1%

Mean runoff

683mm/an

Mean elev. (basins)

745m

Watersheds crossing here

9 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,2nW

Built-up

17,1%

Pesticides

74,8kg/km²

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