다시마와 발해･일본의 교류

Abstract

The study focused on the role of Palhae in the production and distribution of kelp in the ancient East Asia with the motif of Namhae Konpo南海昆布 recorded in New Book of Tang新唐書. However, there is no direct evidence on that. For this reason, inference was mainly made using the knowledge of adjacent fields and various old medical texts related to kelp. First, the examples of kelp-related terms such as Konpo, Haedae, Dasama, and Topsama in the classic books of Korea, China, Japan were analyzed and the true nature of Kelp was grapsed. Based on the ecological knowledge of brown algae, the original term “Konpo” should be limited to the northern area's ones. Around the 11th century, marine algaes in the southern areas started to called Konpo samely, but it should be distinguished with them. The latter (southern Konpo)was presumed as an Ecklonia cava. Second, the term related to kelp has been changed several times. It was caused by the differences in the classification structure of kelp. It was tried to classify into four periods by focusing this issue. Especially around the 11th century, temperate brown algaes such as Ecklonia became a substitute for kelp. Accordingly, It pointed out that the objects called 'Konpo' were enlarged and this term mixed with a coined word ‘Haedae’ made later. Third, in view of Konpo's efficacy in the classical books, it was inferred that the commercial value of the northern kelp was higher, and that Palhae took the lead on the trade of kelp in east Asia. In particular, Palhae played an active role in not only the export of domestic kelp but also the intermediate trade of Japanese kelp. Therefore, it was also suggested that changes in the classification structure of brown algae such as kelp before and after the 11th century were related to the fall of Palhae. Ultimately, this research attain to the conclusion that Palhae brought its local product kelp to the international trade product and had the economic trade capability putting together Tang-Palhae-Japan.