| 塔里木盆地南缘策勒绿洲近4000年来的环境变化 |
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| 引用本文： | 钟巍,熊黑钢,王立国,塔西甫拉提·特依甫.塔里木盆地南缘策勒绿洲近4000年来的环境变化[J].地理科学,2004,24(6):687-692. |
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| 作者姓名： | 钟巍 熊黑钢 王立国 塔西甫拉提·特依甫 |
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| 作者单位： | 华南师范大学地理系,广东,广州,510631;新疆大学资源与环境科学学院,新疆,乌鲁木齐,830046 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金，教育部高校骨干教师资助计划 |
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| 摘 要： | 根据位于塔里木盆地南缘的策勒绿洲两个剖面的孢粉和化学元素的古气候意义的研究,恢复了近4.0 ka B.P.以来此地区环境变化的历史,揭示出了4个相对湿润期,分别发生于约4.0～2.0 ka B.P.、约2.0～1.0 ka B.P.、550～300 a B.P.、100 a B.P.前后.研究还揭示了1 500 a B.P.、1 000 aB.P.和200 a B.P.前后可能是此地区环境变化的重要时间界线.塔里木盆地古城废弃事件与环境变化记录之间的耦合表明,环境变化对此地区人地关系的内容及其演化具有重要的内在影响.
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| 关 键 词： | 塔里木盆地南缘 策勒绿洲 环境变化 古城废弃 |
| 文章编号： | 1000-0690(2004)06-0687-06 |
Proxy Environmental History in Cele Oasis, Southern Margin of Tarim Basin in Southern Xinjiang in Recent 4000 years |
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| Abstract: | Based on two sediment sections obtained in Cele oasis, which is located at the southern margin of Tarim Basin in southern Xinjiang, by applying the pollen combination and geochemical elements as the proxy records of environmental changes, this paper revealed 4 relatively (cold) wet periods, which occurred at 4.0-2.0 ka B.P., about 2.0-1.0 ka B.P., 550-300 a B.P. and around 100 a B.P. respectively. Three possible important boundaries of environmental changes in the research area, which occurred at around 1500 a B. P., 1000 a B. P. and 200 a B. P. respectively, have also been found. The coupled relationship between environmental changes and the human's activities, taking the abandonment of ancient towns as example, shows that climate and environmental changes may be one of the most important factors affecting the man-land relationship in arid area. |
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| Keywords: | southern margin of Tarim Basin Cele oasis environmental changes abandonment of ancient towns |
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