2004年台風15号の特徴と山形県における潮風害の実態

日本作物学会紀事

柴田 康志¹  森 静香¹  安藤 豊²  今川 彰教¹  藤井 弘志²  小田 九二夫¹ 

[1] 山形県農業総合研究センター農業生産技術試験場庄内支場;山形大学農学部

关键词: Damage by salty winds;    潮風害;    High wave;    波高;    Tohoku district;    東北地方;    Typhoon No.15 (2004);    2004年台風15号;    Wind speed;    風速;   

DOI  :  10.1626/jcs.75.459

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Rice plants in an extensive area were damaged by salty winds caused by typhoon No.15, 2004 in the Shonai area of yamagata Prefecture. The yield index of rice was the lowest in 35 years. The characteristic of the typhoon was investigated in relation to rice yield. The main factors affecting the yield of rice were as follows. 1) Maximum south-west wind speed higher than 15 m s-1 and duration of strong winds(stronger than 10 m s-1)longer than 5 hours, 2) There was a lot of spindrift caused by mountain waves in the coastline, 3) Sodium, adhered to the rice panicles, was not washed out because of little rain, and 4) The critical rice stage which was sensitive to salt damage coincided with the typhoon. In general, rice yield was lower in the coastal area than in the inland area. The rice yield in the north part of Shonai area was lower than that in the south part of Shonai area probably because the velocity of the wind was higher in the north part and salt particles reached the inland.

【 授权许可】

Unknown