Shikoku Mountains
IUCN VGreen Corridor · 2003
171 km²
Village · JPN
Umaji
Japan
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 185
Observations
3 398
Area
160,6km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
1 185 distinct species · 3 398 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,4°C
Annual rain
3 385mm
Warmest m°
25,6°C
Coldest m°
-1,2°C
Elevation: 723 m on average (min 418 m, max 1 163 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,4°C
Annual rain
3 385mm
Warmest month
25,6°C
Coldest month
-1,2°C
Mean alt.
723m
Min
418m
Max
1 163m
Std. dev.
171m
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
5,2
Org. C
56,4g/kg
Clay
33,1%
Sand
32,7%
Silt
34,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,2
Org. C
85,1g/kg
Clay
33,3%
Sand
33,3%
Silt
33,4%
5–15 cm
pH H₂O
5,2
Org. C
53,5g/kg
Clay
32,6%
Sand
32,9%
Silt
34,5%
15–30 cm
pH H₂O
5,2
Org. C
30,5g/kg
Clay
33,3%
Sand
31,9%
Silt
34,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest92.8%
Crops0.5%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)6.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 1 lakes · 12 rivers
Hydrology metrics for this exact territory
Stream length here
70,4km
Lake surface here
2,65km²
Basins crossed
4
Max stream order
3
Max drainage
1 019km²
Discharge in basins
5,1m³/s
Mean precip.
2 273mm/an
Mean T°
13,9°C
Moisture idx
0,61
Max snow
18%
Mean runoff
1 774mm/an
Mean elev. (basins)
507m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (12, ord ≥ 4)
- 安田川ord 3len here12.46 km41%total30 km
- 東川ord 2len here11.75 km100%total12 km
- 奈半利川ord 3len here9.48 km19%total51 km
- 中川ord 2len here8.31 km100%total8 km
- 東川ord 2len here7.45 km100%total7 km
- 西川ord 1len here5.40 km100%total5 km
- 馬路中の川ord 1len here4.21 km100%total4 km
- 小石川谷ord 1len here3.66 km100%total4 km
- 一の谷川ord 2len here3.20 km100%total3 km
- 南亀谷ord 1len here2.28 km100%total2 km
- 雁巻谷ord 1len here1.62 km100%total2 km
- 朝日出谷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
0,0nW
Built-up
9,1%
Pesticides
54,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas9
IUCN IV · 7IUCN V · 2🌊 Marine · 1
Senbonyama
IUCN IVPrefectural Wildlife Protection Area · 2018
21 km²
Yanase
IUCN VPrefectural Natural Park · 1964
15 km²
Ganmakiyama
IUCN IVPrefectural Wildlife Protection Area · 2022
7 km²
Sembonyamatennen Yanasesugi（Idenshigen）
IUCN IVRare Population Protected Forest · 2018
2 km²
Sembonyamajinko Yanasesugi・Hinoki
IUCN IVRare Population Protected Forest · 2018
0 km²
Complete list9 protected areas
- Shikoku MountainsGreen CorridorIUCN V2003171 km²
- SenbonyamaPrefectural Wildlife Protection AreaIUCN IV201821 km²
- YanasePrefectural Natural ParkIUCN V196415 km²
- GanmakiyamaPrefectural Wildlife Protection AreaIUCN IV20227 km²
- Sembonyamatennen Yanasesugi（Idenshigen）Rare Population Protected ForestIUCN IV20182 km²
- Sembonyamajinko Yanasesugi・HinokiRare Population Protected ForestIUCN IV20180 km²
- Gammakiyama Yanasesugi（Idenshigen）Rare Population Protected ForestIUCN IV20180 km²
- Yanase Xxx （Idenshigen）Rare Population Protected ForestIUCN IV20180 km²
- Yasudakoyama Xxx （Idenshigen）Rare Population Protected ForestIUCN IV20180 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN