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| 2500年来艾比湖的环境演变信息 | |
| 引用本文： | 阎顺,穆桂金,远藤邦彦,Nobuhiko Handa,Masao Uchida,Naomi Harada.2500年来艾比湖的环境演变信息[J].干旱区地理,2003,26(3):227-232. |
| 作者姓名： | 阎顺 穆桂金 远藤邦彦 Nobuhiko Handa Masao Uchida Naomi Harada |
| 作者单位： | 1. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011 2. 日本大学文理学部地球科学系,东京 3. Dept of Information Science and Technology,Aichi Prefectural University,Aichi 480-1198 Japan 4. Japan Marine Sceience and Technology Center,Yokosuka 237-0061 Japan |
| 基金项目： | 国家重大基础研究发展规划项目 (TG19990 43 5 0 2 )课题，中国科学院创新重大项目 (KZCX1-10 -0 5 )，国家自然科学基金重点项目 (NSFC90 10 2 0 0 9)资助 |
| 摘 要： | 通过对艾比湖缘1，8m浅孔的沉积相和孢粉组合，结合14C测年资料分析。指出近2500年来艾比湖的沉积环境总体是比较稳定的，但由于气候波动引起艾比湖水位曾发生较明显的变化。约在公元前300～400年，是艾比湖面积缩小时期；约公元前300—公元300年，即东周末至西晋，是艾比湖水位较高时期；约公元300—1400年，即东晋至15世纪初，是艾比湖的高水位时期；约15世纪初至17世纪中是艾比湖的水位下降期，但水位比现代仍然高；约17世纪中至19世纪初的小冰期是艾比湖的水位上升期。研究还提供了历史时期湖泊的盐度变化和湖周发生大火的信息。 |
| 关 键 词： | 艾比湖 历史时期 环境信息 孢粉 新疆 |
| 文章编号： | 1000-6060(2003)02-0227-06 |
| 修稿时间： | 2003年3月16日 |
Environmental Evolution Information from Aiby Lake since the Last 2500a |
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| Nobuhiko Handa,Masao Uchida,Naomi Harada.Environmental Evolution Information from Aiby Lake since the Last 2500a[J].Arid Land Geography,2003,26(3):227-232. | |
| Authors: | Nobuhiko Handa Masao Uchida Naomi Harada |
| Abstract: | Sedimentary faces and pollen study of Ash core in Aiby Lake with 14 C dating data gives information on the evolution of Aiby Lake since the last 2500 years. Sedimentary environment of the lake has been generally stable. But the lake level has oscillated with the influence of climatic ariation. It got a surface shrinking stage from about 400 to 300 BC. The area was much smaller than that of later high lake level stage. It was leas than 600 km 2 by referring present lake surface and the lake shoreline. The lake was surrounded with Haloxylon deserts. It run to a relative high lake level stage from about 300 BC to 300 AD, the end of East Zhou to West Jin Dynasty of China. Then the lake got to a high level stage from about 300 to 1400 AD, East Jin to the beginning of 15th century. The lake level was at the height between 226 to 210m above sea level, about 15 to 31 m higher than present lake surface. It means the environment of Aiby Lake region was obviously better than present during the Middle Ages. The lake level was in decreasing stage from about the beginning of 15th to the middle of 17th century, but the lake level was still higher than present lake level. Little Ice age was Aiby Lake level rising stage from about middle 17th to early 19th century. This study also supplies the information about changes of the historical salinityof the lake and natural burning around the lake. |
| Keywords: | Historical time Environmental information Pollen Aiby Lake |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |