Millennial-scale variability in vegetation records from the East Asian Islands: Taiwan, Japan and Sakhalin
Millennial-scale variability in vegetation records from the East Asian Islands: Taiwan, Japan and Sakhalin
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DOI：
10.1016/j.quascirev.2009.11.026
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发表时间：
2010-10
影响因子：
4
通讯作者：
H. Takahara;Y. Igarashi;Ryoma Hayashi;F. Kumon;P. Liew;Masanobu Yamamoto;S. Kawai;T. Oba;T. Irino
中科院分区：
文献类型：
--
作者：
H. Takahara;Y. Igarashi;Ryoma Hayashi;F. Kumon;P. Liew;Masanobu Yamamoto;S. Kawai;T. Oba;T. Irino
来自台湾、日本和库页岛的高分辨率花粉记录了末次冰期Dansgaard-Oeschger（D-O）旋回期间的区域植被变化。从冷相（GS 18/19）到暖相（D-O 19），日本的生物群落从温带针叶林向冷凉针叶林转变，台湾的生物群落从亚热带针叶林向温带落叶针叶林转变。D-O 17的植被，日本中部的冷混交林，日本西部的温带落叶阔叶林和台湾的亚热带森林，表明温暖的条件，但不是所有地区的潮湿。这些植被变化导致生物群落从MIS（海洋同位素阶段）4转移到MIS 3。在D-O 12和D-O 8中，柳杉和水青冈的丰度表明通过群岛的强夏季风和对马暖流流入日本海带来的高降雪带来的潮湿条件。MIS 3中其他D-O变暖事件的登记，虽然反映了关键物种丰度的变化，但不足以产生生物群落的变化。在萨哈林岛、北海道和日本中部的HS（Heinrich事件）1中，冷落叶林的发展是显著的，并且远大于YD。YD的植被响应是小规模的，在东亚岛屿的同一生物群落内。在末次冰期末期的D-O 1，与全新世早期相同的类群，即北方地区的冷万年青针叶树、日本中西部的温带落叶阔叶树和台湾的暖温带万年青乔木，都有所增加。
High-resolution pollen records from Taiwan, Japan and Sakhalin document regional vegetation changes during Dansgaard-Oeschger (D-O) cycles during the last glacial. During the period from the cold phase (GS 18/19) to warm phase (D-O 19), the biome shift from temperate conifer forest to cold/cool conifer forest in Japan and from subtropical forest to temperate deciduous/conifer forest in Taiwan. The vegetation in D-O 17, cool mixed forest in central Japan, temperate deciduous broadleaf forest in western Japan and subtropical forest in Taiwan, indicates warm condition but not wet in all area. These vegetation changes lead to biome shift from MIS (Marine Isotope Stage) 4 to MIS 3. The abundance of Cryptomeria japonica and Fagus crenata in D-O 12 and D-O 8 indicates wet conditions brought by the strong summer monsoon through the Islands and high snowfall brought by the inflow of the Tsushima Warm Current into the Sea of Japan. The registration of other D-O warming events in MIS 3, although reflected by shifts in the abundance of key species, is not sufficient to produce changes in biomes. Development of cold deciduous forest in HS (Heinrich events) 1 in Sakhalin, Hokkaido and central Japan was conspicuous and was much larger than that in YD. Vegetation response in YD was small scale and within the same biome in the East Asian Islands. In D-O 1 at the termination of the last glacial, the same taxa that developed in the early Holocene, cold evergreen needleleaf trees in northern region, temperate deciduous broadleaf trees in central and western Japan, and warm-temperate evergreen trees in Taiwan, increased.