| 基于树轮的阿勒泰地区1818-2006年1-2月降雪量重建与分析 |
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| 引用本文： | 胡义成,魏文寿,袁玉江,张同文,秦莉,张瑞波.基于树轮的阿勒泰地区1818-2006年1-2月降雪量重建与分析[J].冰川冻土,2012,34(2):319-327. |
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| 作者姓名： | 胡义成 魏文寿 袁玉江 张同文 秦莉 张瑞波 |
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| 作者单位： | 中国气象局乌鲁木齐沙漠气象研究所；新疆树木年轮生态实验室；中国气象局树木年轮理化研究重点开放实验室／新疆气象信息中心,新疆乌鲁木齐830002;中国气象局乌鲁木齐沙漠气象研究所；新疆树木年轮生态实验室；中国气象局树木年轮理化研究重点开放实验室／新疆维吾尔自治区气象局,新疆乌鲁木齐830002;中国气象局乌鲁木齐沙漠气象研究所；新疆树木年轮生态实验室；中国气象局树木年轮理化研究重点开放实验室 |
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| 基金项目： | 国家自然科学基金项目，科技部公益性行业(气象)科研专项，中央级公益性科研院所基本科研业务费项目，中国沙漠气象科学研究基金项目，新疆维吾尔自治区树木年轮生态重点实验室开放课题 |
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| 摘 要： | 依据采自新疆阿勒泰中东部地区的树木年轮样本,建立了该地区8个采点的树轮宽度年表.相关普查发现,标准化树轮宽度年表序列与该地区1-2月的降雪量存在明显的正相关关系,且具有显著的树木生理学意义.用义河山南(t)、卓勒萨依(t+2)和哈拉额尔齐斯(t+3)三个标准化树轮宽度年表序列可以较好地重建该地区1818-2006年189a来当年1-2月的降雪量,且经过交叉检验表明重建方程稳定可靠.分析发现,阿勒泰地区189a来降雪量的重建序列具有5个偏少阶段和5个偏多阶段,并具有2.4a,3.3～3.4a和63a的显著干湿变化准周期.冬季降雪量的重建序列大致存在4个突变点,其中在1847年和1930年前后为降雪量由多到少突变,而在1901年和1986年前后是自少向多突变.
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| 关 键 词： | 阿勒泰地区 西伯利亚落叶松 标准化树轮宽度年表 冬季降雪量重建 |
Reconstruction and Analysis of January-February Snowfall in the Altay Prefecture during 1818-2006 |
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| HU Yi-cheng,WEI Wen-shou,YUAN Yu-jiang,ZHANG Tong-wen,QIN Li,ZHANG Rui-bo.Reconstruction and Analysis of January-February Snowfall in the Altay Prefecture during 1818-2006[J].Journal of Glaciology and Geocryology,2012,34(2):319-327. |
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| Authors: | HU Yi-cheng WEI Wen-shou YUAN Yu-jiang ZHANG Tong-wen QIN Li ZHANG Rui-bo |
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| Institution: | 1 (1.Institute of Desert Meteorology,China Meteorological Administration;Xinjiang Laboratory of Tree Ring Ecology; Key Laboratory of Tree-ring Physical and Chemical Research of China Meteorological Administration,ürümqi Xinjiang 830002,China;2.Xinjiang Meteorological Information Center,ürümqi Xinjiang 830002,China; 3.Xinjiang Meteorological Administration,ürümqi Xinjiang 830002,China) |
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| Abstract: | Eight tree-ring chronologies in middle and eastern Altay Prefecture were established.The correlation between the climatic data and the chronologies was analyzed.It is found that the standardized chronology series positively correlates with the snowfall from January to February in the prefecture,and has obvious tree physiological significance.With the three chronologies YHN(t),ZLS(t+2) and HLE(t+3),the 189 a(1818-2006) snowfall from January to February can be better reconstructed,and the reconstructed equation is reliable.It is found that: 1) The reconstructed snowfall has five wetter periods above their mean and five drier periods below their mean.2) The reconstructed series has significant cycles of 2.4 a,3.3~3.4 a and 63 a periods.3) The abruptly change of the reconstructed snowfall series occurred in 1847,1901,1930 and 1986,of which the change was from more to less in 1847 and 1930,while the change was from less to more in 1901 and 1986. |
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| Keywords: | Altay Prefecture Larix sibirica Ledeb standardized tree-ring width chronologies winter snowfall reconstruction |
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