Shikoku Mountains
IUCN VGreen Corridor · 2003
171 km²
Town · JPN
Ōtoyo
Japan
CfaTemperate, no dry season, hot summer(86 %)
Species observed
1 173
Observations
3 690
Area
305,3km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
1 173 distinct species · 3 690 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
2 948mm
Warmest m°
26,6°C
Coldest m°
-3,1°C
Elevation: 740 m on average (min 293 m, max 1 389 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
2 948mm
Warmest month
26,6°C
Coldest month
-3,1°C
Mean alt.
740m
Min
293m
Max
1 389m
Std. dev.
253m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(86 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,2
Org. C
56,6g/kg
Clay
31,1%
Sand
36,0%
Silt
33,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,1
Org. C
86,6g/kg
Clay
31,7%
Sand
35,7%
Silt
32,6%
5–15 cm
pH H₂O
5,1
Org. C
54,8g/kg
Clay
31,3%
Sand
35,9%
Silt
32,8%
15–30 cm
pH H₂O
5,2
Org. C
28,4g/kg
Clay
30,2%
Sand
36,3%
Silt
33,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest93.5%
Crops1.2%
Built-up0.2%
Bare soil0.0%
Other (grassland, water…)5.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 23 rivers
Hydrology metrics for this exact territory
Stream length here
120,5km
Basins crossed
4
Max stream order
4
Max drainage
1 159km²
Discharge in basins
16,6m³/s
Mean precip.
2 164mm/an
Mean T°
11,7°C
Moisture idx
0,59
Max snow
22%
Mean runoff
1 438mm/an
Mean elev. (basins)
771m
Watersheds crossing here
Rivers / streams (23, ord ≥ 4)
- 南小川 (Minamikogawa)ord 4len here17.30 km100%total17 km
- 吉野川ord 5len here16.65 km9%total179 km
- 立川川ord 4len here15.29 km100%total15 km
- 穴内川ord 4len here9.50 km27%total35 km
- 南大王川ord 2len here9.25 km100%total9 km
- 久寿軒谷川ord 3len here6.83 km100%total7 km
- 川奥谷川ord 2len here5.59 km100%total6 km
- 赤根川ord 1len here4.81 km100%total5 km
- 角茂谷川ord 3len here4.09 km100%total4 km
- 竹谷川ord 3len here3.97 km100%total4 km
- 井出川ord 2len here3.63 km100%total4 km
- 沖野々川ord 1len here3.61 km100%total4 km
11 more river segmentssorted by Strahler order + length
- 上コビソ谷川ord 1len here3.12 km100%total3 km
- 湯口谷川ord 1len here2.79 km100%total3 km
- 奥大田川ord 4len here2.36 km100%total2 km
- 尾生谷川ord 1len here2.36 km100%total2 km
- カケヤブ川ord 4len here2.07 km100%total2 km
- 松尾川ord 2len here1.76 km6%total30 km
- 小川川ord 1len here1.75 km100%total2 km
- 黒滝川ord 1len here1.57 km100%total2 km
- 西谷川ord 1len here1.08 km100%total1 km
- 古屋谷川ord 1len here0.58 km100%total1 km
- 如谷川ord 1len here0.58 km100%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
23,6%
Pesticides
33,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN V · 3IUCN IV · 1
Okumononobe
IUCN VPrefectural Natural Park · 2001
118 km²
Kajinomori
IUCN VPrefectural Natural Park · 1964
16 km²
Kajiga mori
IUCN IVPrefectural Wildlife Protection Area · 2019
4 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN