Economy of 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 56,000 km² (14 million acres) cultivated.
Agriculture, forestry, and fishing in Japan
The most striking feature of Japanese agriculture is the shortage of farmland. The under cultivation constituted just 13.2% of the total land area in 1988. However, the land is intensively cultivated. Rice paddies occupy most of the countryside, whether on the alluvial plains, the terraced slopes, or wetlands and coastal bays. Non-paddy farmland share the terraces and lower slopes and are planted with wheat and barley in the autumn and with sweet potatoes, vegetables, and dry rice in the summer. Intercropping is common: such crops are alternated with beans and peas.