| 青海都兰过去2000年来的气候重建及其变迁 |
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| 引用本文： | 康兴成,张其花,Paul Sheppard.青海都兰过去2000年来的气候重建及其变迁[J].地球科学进展,2000,15(2):215-221. |
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| 作者姓名： | 康兴成 张其花 Paul Sheppard |
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| 作者单位： | 1. 中国科学院兰州冰川冻土研究所,兰州,730000
2. Laboratory of Tree-Ring Research, University of Arizona, Tucson, USA |
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| 基金项目： | 国家重点基础研究专项经费资助，中国科学院青藏高原研究项目!( KZ95 1-A1-2 0 4-0 2 )，中国科学院“九五”重大项目!“亚洲季风气候 |
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| 摘 要： | 根据青海都兰地区树木年轮样本建立了目前我国最长的年轮年表序列。通过年表与气候要素间相关函数、响应函数及响应面分析,选择了可被重建的气候因子,建立了重建方程,恢复了青海都兰地区历史时期的平均温度;并分析讨论了近2 000年来该地区的气候变化。阐述了这个地区的冷暖交替及周期循环。对一些重大气候事件,如中世纪暖期、小冰期和近一个世纪以来的升温等,逐个事件进行了剖析。并与全球温度变化进行了对照。都兰温度曲线为青藏高原东部地区提供了一个较好的气候变化信息表。
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| 关 键 词： | 树木年轮 气候重建 温度 气候变化 |
| 收稿时间： | 1999-04-26 |
| 修稿时间： | 1999-09-15 |
RECONSTRUCTION AND VARIATION OF CLIMATE IN DULAN REGION, QINGHAI DURING LAST 2000 a |
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| KANG Xingcheng,ZHANG Qihua,Lisa J. Graumlich,Paul Sheppard.RECONSTRUCTION AND VARIATION OF CLIMATE IN DULAN REGION, QINGHAI DURING LAST 2000 a[J].Advance in Earth Sciences,2000,15(2):215-221. |
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| Authors: | KANG Xingcheng ZHANG Qihua Lisa J Graumlich Paul Sheppard |
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| Institution: | 1.Lanzhou Institute of Glaciology and Geocryology,Chinese Academy of Sciences,Lanzhou730000,China；2.Laboratory of Tree-Ring Research,University of Arizona,Tucson,Arizona,USA |
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| Abstract: | A 1 835 a tree ring chronologies has been established based on tree ring samples from Dulan region, Qinghai. Correlation function, Response function and response surface analysis were utilized to study relationship between chronology and climatic elements. The results showed that trees studied were mainly affected by climatic elements. 60% and above percent of growth variance can be accounted for by monthly mean air temperature and monthly to total precipitation, and the response to temperature is stronger than to precipitation. According to the relation of chronology and climatic elements, September~December mean temperature of Dulan region were reconstructed year by year. Using the data of reconstruction, the authors discuss the change of climate in Dulan area during last 2 ka, in particular mainly climatic events such as the Medieval warm period, the little ice age and getting warm of the last century, and make comparison between studies area and northern hemisphere. |
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| Keywords: | Tree ring chronologies Reconstruction of climate Temperature Climatic change |
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