Vegetation and Climate since the last Glacial Maximum in Siberia

在这个项目中，我们从西伯利亚西部和俄罗斯远东的15个地点采集了沉积物岩心。为了弄清西伯利亚地区的植被历史，对这些岩心进行了古生态研究。本研究明确了西伯利亚全新世植被的历史概况如下。在西伯利亚西部的新西伯利亚北部，在过去的6000年里，白桦林和苏格兰松林占据了主导地位。在新西伯利亚附近的山区，全新世中期以后，森林由桦树、松树和冷杉组成。在贝加尔湖南部，全新世发育暗色泰加。在贝加尔湖北部地区，落叶松在森林中占据主导地位，也就是所谓的浅色泰加。在阿穆尔河河口，白桦林在全新世早期发育。距今7500年，阿穆尔地区北部出现了橡树。在全新世晚期，云杉在该地区占据主导地位。自全新世早期以来，该地区一直保持着落叶松森林。在堪察斯卡半岛南部，草原植被以禾本科、艾属为主，植被发达。在冰川晚期或全新世早期。此外，在全新世，以桦木和杉木为主的森林阶地占主导地位。全新世中期，在堪察斯卡河附近的堪察斯卡河中心地区，白皮松生长，晚期，落叶松和云杉生长。我们在“俄罗斯远东地区自上一次冰川以来的植被历史”(首席调查员：高原光，2004-2006)项目中继续开展这一研究项目。

We took sediment cores from 15 sites in the western Siberia and the Russian Far East in this project. Palaeoecological study was carried out for these cores to make clear the vegetation history in Siberia. The summary of Siberian vegetation history in the Holocene made clear in this study project is as follows. In north of Novosibirsk, the western Siberia, during the last 6000 years birch forests were dominant with Scot pine. In the mountain area near Novosibirskforests were composed of birch and pine with fir after the middle Holocene. In the southern part of the Baikal region, dark taiga developed in Holocene. In the northern part of the Baikal region, larch became dominant in the forests, so called light taiga. In the mouth of the Amur River, birch forests developed in the early Holocene. In 7500 yr BP, oak trees appeared in the north of Amur region. In the late Holocene, spruce became dominant in the region. Larch forests have maintained since the early Holocene in this area. In the southern part of Kamchatska Peninsula, grassland vegetation composed mainly of Gramineae, Artemisia and developed. in the late glacial or early Holocene. Also, during the Holocene, forest step dominated by birch and alder was dominant. In the middle Holocene, Pinus pumla increased and in the late Holocene, larch and spruce increased in the center area of Kamchatska, near Kamchatska River. We have carried forward this study project in the continual project "Vegetation history since the last glacial in the Russian Far East" (Head Investigator : Hikaru Takahara, 2004-2006).