Prefectural Natural Park · jpn
Gozen yama
- Area
- 75 km²
- IUCN cat.
- V
- Year
- 1954
Overview
- Designation
- Prefectural Natural Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1954
- Managing authority
- Ibaraki Prefecture
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
334 distinct species · 485 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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).
Indicateurs du tissu écologique
Tissu écologique de Gozen yama : 34 espèces reliées par 40 interactions GloBI sur 4 types (connectance 5.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology2 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
20,9km
Basins crossed
2
Max stream order
5
Max drainage
2 828km²
Discharge in basins
6,2m³/s
Mean precip.
1 420mm/an
Mean T°
13,2°C
Moisture idx
0,30
Max snow
12%
Mean runoff
677mm/an
Mean elev. (basins)
123m
Watersheds crossing here
Rivers / streams (9, ord ≥ 4)
- 相川ord 5len here7.88 km94%total8 km
- 那珂川ord 5len here4.70 km4%total131 km
- 檜山川ord 1len here4.11 km96%total4 km
- 緒川ord 5len here2.75 km10%total28 km
- 塩子川ord 1len here0.67 km14%total5 km
- 桂川ord 5len here0.44 km4%total12 km
- 千田川ord 1len here0.19 km5%total4 km
- 逆川ord 3len here0.13 km1%total25 km
- 岩船川ord 1len here≈ tangenttotal1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 36.51243, 140.29198
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.