Ontologia

City · JPN

Tochigi

Japan

CfaTemperate, no dry season, hot summer(100 %)

Species observed

835

Observations

2 566

Area

126,6km²

Ecological tissue

Sample of 34 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 Tochigi : 28 espèces reliées par 55 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
55
Connectance
0.092
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

835 distinct species · 2 566 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 566 obs · 4 cellules
Obs. / cellule
≥ 899
899–898
663–898
663–662
< 663

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

Climate

Mean T°

14,1°C

Annual rain

1 689mm

Warmest m°

28,8°C

Coldest m°

-2,6°C

Elevation: 124 m on average (min 32 m, max 481 m)

Bioclimatic detailsExpert
Annual mean temp.
14,1°C
Annual rain
1 689mm
Warmest month
28,8°C
Coldest month
-2,6°C
Mean alt.
124m
Min
32m
Max
481m
Std. dev.
94m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,7

Org. C

45,1g/kg

Clay

20,9%

Sand

47,5%

Silt

31,6%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
58,4g/kg
Clay
21,6%
Sand
46,2%
Silt
32,2%
5–15 cm
pH H₂O
5,7
Org. C
41,0g/kg
Clay
20,7%
Sand
47,4%
Silt
31,9%
15–30 cm
pH H₂O
5,7
Org. C
35,9g/kg
Clay
20,5%
Sand
49,0%
Silt
30,5%

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

Land cover

Forest35.9%
Crops13.3%
Built-up7.0%
Bare soil1.2%
Other (grassland, water…)42.5%

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

Hydrology1 basins · 0 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

43,3km

Basins crossed

1

Max stream order

4

Max drainage

2 572km²

Discharge in basins

2,0m³/s

Mean precip.

1 546mm/an

Mean T°

12,2°C

Moisture idx

0,34

Max snow

8%

Mean runoff

544mm/an

Mean elev. (basins)

370m

Watersheds crossing here

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

Human pressure

Pop. density

4hab/km²

Night light

2,5nW

Built-up

704,0%

Pesticides

95,1kg/km²

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

Protected areas10

IUCN IV · 6IUCN V · 4

Ohira-teruishi

IUCN IV

Prefectural Wildlife Protection Area · 2017

22 km²

Ohira san

IUCN V

Prefectural Natural Park · 1955

12 km²

Izurusan

IUCN IV

Prefectural Wildlife Protection Area · 2015

4 km²

Azusa no mori

IUCN IV

Prefectural Wildlife Protection Area · 2017

1 km²

Izuru san

IUCN V

Prefectural Nature Conservation Area · 1976

1 km²

Kokubunji

IUCN IV

Prefectural Wildlife Protection Area · 2020

0 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN