| 泾河中游ETC全新世剖面木炭屑记录的环境信息解译 |
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| 引用本文： | 赵文宇,庞奖励,黄春长.泾河中游ETC全新世剖面木炭屑记录的环境信息解译[J].宝鸡文理学院学报(自然科学版),2005,25(3):224-227. |
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| 作者姓名： | 赵文宇 庞奖励 黄春长 |
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| 作者单位： | 陕西师范大学,旅游与环境学院,陕西,西安,710062;陕西师范大学,旅游与环境学院,陕西,西安,710062;西北历史环境与经济社会发展研究中心,陕西,杨凌,712100 |
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| 基金项目： | 国家自然科学基金
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陕西省自然科学基金 |
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| 摘 要： | 通过对泾河中游ETC全新世剖面的木炭屑分布规律的分析,结合磁化率和考古资料讨论了该地区全新世时期野火活动规律及其对环境的指示意义.表明:马兰黄土堆积时期和全新世早期,气候比较温和干燥,当地常有自然野火发生;全新世大暖期(8 500～3 100a B.P.),气候湿润,但由于人类活动的影响,野火活动仍有发生;从3 100a B. P.开始,人类活动加强,加之气候变得干旱,野火活动异常频繁.
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| 关 键 词： | 木炭屑 全新世 泾河中游 环境信息 |
| 文章编号： | 1007-1261（2005）03-0224-04 |
| 收稿时间： | 2005-03-02 |
| 修稿时间： | 2005年3月2日 |
The interpretation of the environment information recorded by charcoal in a Holocene section at ETC site in the middle reaches of Jinghe |
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| ZHAO Wen-yu,PANG Jiang-li,HUANG Chun-chang.The interpretation of the environment information recorded by charcoal in a Holocene section at ETC site in the middle reaches of Jinghe[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2005,25(3):224-227. |
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| Authors: | ZHAO Wen-yu PANG Jiang-li HUANG Chun-chang |
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| Abstract: | Through the analysis of the distribution of charcoal in the Holocene section at ETC site in the middle reaches of Jinghe,we discussed the wildfire activity and the its indication of environment in this area during Holocene with 1he magnetic susceptibility and archaeological materials. The result shows that in the phase of piling of Malan loess and the early Holocene,the climate was warmer and arid,the wildfire often occurred. During the Holocene Megathermal,the climate was humid, but the wildfire still occurred because of the human activity intensified. Since 3100 a B. P. ,the human activity intensified and the climate became arid,so the wildfire activity was extremely frequent. |
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| Keywords: | charcoal Holocene middle reaches of Jinghe environment information |
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