A study of geomorphological formation in coastal region for the northern migration of coral reef development with global warming

全球变暖导致珊瑚礁向北迁移的沿海地区地貌形成研究

• 批准号: 15300303
• 负责人: KAN Hironobu
• 金额: $ 10.56万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15300303/
• 关键词: Coral Reef; Reef Development; Latitudinal Limit; Holocene; Environmental Change; Drilling Core; Northwestern Pacific; Global Warming; 高緯度サンゴ礁; 礁形成過程; 完新世環境変遷; 西南日本; 琉球列島北部; ボーリング調査; 地形発達; 環境管理

The northern migration of the coral reef formation is expected in the era of global warming. The northwestern Pacific is rare place where the reef-size and reef-distribution decrease gradually to the latitudinal limit. This study discusses the reef development in four reef area of different latitudes (Tanegashima-Magejima area, Tokara Islands, Okinawa Island, Ogasawara Islands) by drillings.The reef development in the northern Ryukyus around the latitude of 30 degree N (Tanegashima-Magejima area) characterized by follows: 1) lagged start-up growth behind the sea level rise, 2) short duration of reef development as the major reef development ceases less than 2,000 years, 3) slow upward growth rate between 1 to 2 m/ka. The site-specific reef formation and the narrow time range of reef development may characterize the high-latitude reef growth. The small high-latitude reef may build in the short geological time period. However, the timing and locality of reef development is hard to expect.In Ogasawara Islands, reef topography, internal structure and development are unique comparing with the northern Ryukyus. The further investigation is necessary for coral reefs in Ogasawara Islands.

在全球变暖的时代，珊瑚礁的形成预计会向北迁移。西北太平洋是珊瑚礁大小和分布逐渐缩小到纬度极限的罕见之地。通过钻探研究了4个不同纬度地区(谷儿岛-马格吉岛地区、托卡拉群岛、冲绳岛、小川群岛)的生物礁发育情况。琉球北部北纬30度附近(谷桥岛-马格吉岛地区)的生物礁发育具有以下特征：1)启动生长滞后于海平面上升；2)由于主要生物礁发育停止不到2000年，生物礁发育持续时间短；3)在1~2m/ka之间上升速度缓慢。特定地点的生物礁形成和狭小的生物礁发育时间范围可能是高纬度生物礁生长的特征。小的高纬度生物礁可以在短地质时期内形成。然而，礁石发育的时间和地点很难预料。与琉球北部相比，小川群岛的礁石地形、内部结构和发育都是独一无二的。有必要对小川群岛的珊瑚礁进行进一步调查。

项目成果

Development of geomorphological zonation in fringing reefs : the Ryukyu Islands, Japan.

岸礁地貌分区的发展：日本琉球群岛。

• 发表时间: 2007
• 期刊: Geographical Rept. Tokyo Metropolitan University 第42号(印刷中)
• 作者: Kan;H.
• 通讯作者: H.

Drilling research of a high-latitude coral reef in Mage Island, Satsunan Islands, Japan

日本萨南群岛玛格岛高纬度珊瑚礁钻探研究

• 发表时间: 2005
• 期刊: Okayama University Earth Science Reports 12-1
• 作者: Kan;H.;Nakashima;Y.;Ohashi;T.;Hamanaka;N.;Okayamoto;T.;Nakai;T.;Hori;N
• 通讯作者: N

Coral records of 1990s in the northwest Pacific : El Nino, coral bleaching, and global warming.

20 世纪 90 年代西北太平洋的珊瑚记录：厄尔尼诺现象、珊瑚白化和全球变暖。

• 发表时间: 2006
• 期刊: In : Kawahata, H. (ed.) Global Climate Change and Response of Carbon Cycle in the Equatorial Pacific and Indian Oceans and adjacent landmasses. Elsevier Oceanography Series.
• 作者: Suzuki;A.;Gagan;M.K.;Kan;H.;Edward;A.;Siringan;F.P.;Yoneda;M.;Kawahata;H.
• 通讯作者: H.

A 60-year isotopic record from a mid-Holocene fossil giant clam (Tridacna gigas) in the Ryukyu Islands : physiological and paleoclimatological implication

琉球群岛全新世中期巨砗磲化石 60 年同位素记录：生理学和古气候学意义

• 发表时间: 2004
• 期刊: Palaeogeography Palaeoclimatology Palaeoecology Vol.212
• 作者: Watanabe;T.Suzuki;A.;Kawahata;H.Kan;H.;Ogawa;S.
• 通讯作者: S.

Holocene reef development in the central Ryukyus.

琉球群岛中部全新世珊瑚礁发育。

• 发表时间: 2006
• 期刊: Proc. 10th International Coral Reef Symposium
• 作者: Kan;H.
• 通讯作者: H.