Yakushima: coast, mountain forests and island livelihoods

Yakushima’s granite formed as magma cooled underground. Uplift, weathering and erosion then shaped its mountains, large rocks, steep valleys and waterfalls. High relief and the Kuroshio’s influence contribute to heavy rain. Nearby Kuchinoerabujima is a separate island with active volcanoes.

Lowland subtropical plants and evergreen broadleaf forest give way to mixed conifer and broadleaf woods, wind-shaped low vegetation and summit bamboo grassland. Old stands of sugi, the Japanese conifer Cryptomeria japonica, form part of this wider sequence. The wind-exposed sugi at Nageshidaira grows low and spreads outward, with short leaves: a different form from a towering old tree.

Timber use and access rights

Satsuma took tribute in sugi roofing boards, or hiragi. Meiji nationalisation later restricted islanders’ access to forest resources. Following prolonged appeals, a 1921 policy restored use of part of the state forest. The restrictions and later concessions affected islanders’ livelihoods.

The forest railway and Kosugidani

A logging railway opened in 1923, followed by the Kosugidani camp in 1924. Workers brought families, and schools served the settlement. It expanded during the postwar logging boom and closed in 1970; surviving school and railway remains preserve this history.

Local descriptions distinguish the settled sato, the visible maedake mountains and the deeper okudake. During takemairi, people visit summit stone shrines to pray for community well-being and harvests from land and sea; routes and customs vary by settlement. Nagata’s Kamejo Odori dance imitates turtles coming ashore, laying eggs and returning to the sea.

Different protected boundaries

On 11 December 1993, about 10,747 hectares were inscribed on the World Heritage List for their natural value, roughly one fifth of the island. The national park covers a wider area. Yakushima joined Kirishima-Yaku National Park in 1964; Kuchinoerabujima and surrounding waters were added in 2007. Yakushima National Park became a separate park in 2012. Deer browsing can damage vegetation, while busy mountain trails require measures such as toilets and traffic controls.

From logging to conservation and ecotourism

Conservation also developed through local action. Residents formed a protection group in 1972 amid debate over forestry; a 1981 management plan prioritised yakusugi conservation. After World Heritage inscription, visitor management became another shared task. A council established in 2004 brought local authorities and organisations together to connect nature protection, tourism and community livelihoods.