Japan
The Japanese agricultural sector accounts for about 1.4% of the total country's GDP. Only 12% of Japan's land is suitable for cultivation. Due to this lack of arable land, a system of terraces is used to farm in small areas. This results in one of the world's highest levels of crop yields per unit area, with an overall agricultural self-sufficiency rate of about 50% on fewer than cultivated.
Agriculture, forestry, and fishing in Japan
Two thirds of land of Japan is forest. 40% of the forests in Japan are planted forests, such as cedar and cypress. They are mainly planted after the Pacific War, in attempt to produce construction material, but after Japan had experienced rapid economic growth, they switched construction material from wood to reinforced concrete. Moreover, cheaper import wood became more attractive, compared to domestic wood which is produced in steep mountain and high costs of labour. Nowadays, many planted forests are too dense and need thinning.