Discoveries of Rice in Prehistoric Sites in Korea

Korea is a small peninsula with an area of 220,839 square kilometers. It is a mountainous land, with only one-fifth of the area available for cultivation. The peninsula belongs to the temperate zone, but the north is colder and more arid while the south is humid and hot in the summer, like the monsoon zone of southeast Asia and Japan. The south has a yearly rainfall of 800 to 1,000 millimeters, and 60 percent of the precipitation occurs in the summer months from June to early September.