大别山地区黄山松和油松树轮宽度的气候意义
Climate Significance of Tree Ring Width of Huangshan Pine and Chinese Pine in the Dabie Mountains
查看参考文献26篇
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文摘
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本文基于2010年采自大别山地区黄山松、油松树轮资料分别建立了树轮宽度标准年表,利用相关函数检验了年表与附近的麻城气象站1959-2009年月平均最高气温、月平均气温、月平均最低气温和月降水量之间关系,旨在探讨黄山松、油松树轮宽度的气候意义。研究结果显示,平均敏感度、标准差、信噪比等统计量黄山松年表均高于油松年表,表明黄山松年表较油松年表包含更多的气候信息,具有更高的树轮气候学研究价值。黄山松径向生长主要受当年2-7月平均气温限制,任何月份及月份组合降水量对黄山松径向生长的限制作用均不显著;油松径向生长主要受当年5-6月降水总量限制,任何月份及月份组合气温对油松径向生长的限制作用均不显著。研究表明,在中国亚热带暖湿地区,气候要素的年际变化亦可对部分树种径向生长具有较强的限制作用,树木年轮宽度的变化对气候具有指示意义。研究结果将进一步弥补中国亚热带暖湿地区树轮宽度年表的不足,为树轮气候重建研究提供参考和依据。 |
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其他语种文摘
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Two well-replicated tree-ring width chronologies more than 100 years were developed by using the tree ring cores of Huangshan Pine(Pinus Taiwanese’s Hayata) and Chinese Pine(Pinus tabulaeformis Carr.) sampled in 2010 for the Dabie Mountains.The Huangshan Pine chronology covers the period 1869-2009 and the Chinese Pine chronology from 1883 to 2009.To explore the climate significance of tree ring width of Huangshan Pine and Chinese Pine in the study of dendroclimate,correlation analyses were conducted between the two chronologies and four climate variables at Macheng meteorological station.These climate variables include monthly mean maximum temperature,monthly mean temperature,monthly mean minimum temperature and monthly precipitation,all of which cover the period from 1959 to 2009.The results showed that the Huangshan Pine chronology was characterized by a higher mean sensitivity,standard deviation and signal to noise ratio than the Chinese Pine chronology,which might means that Huangshan Pine has more climate signals and higher value than Chinese Pine in the study of dendroclimate.The results of correlation analysis showed that the radial growth of Huangshan Pine was closely related to the February-July mean temperature,while there was no significant correlation with precipitation in any month or season.In contrast,the radial growth of Chinese Pine was mainly influenced by the total precipitation in the period from May to June,while there was no significant correlation with temperature in any month or season.The radial growth of Huangshan Pine and Chinese Pine shows different responses to climate variables.One reason may be that they are different species,and the other reason may be that they were sampled at different altitudes.Different from the earlier concept,this study showed that the inter-annual changes of climate variables also have a strong restrictive effect on the radial growth of some tree species in warm and humid areas in subtropical China,which showed that the change of tree ring width can be a well indicator for climate change in these areas.The results not only can further supplement the study of tree-ring width chronologies,but also can provide reference for the study of dendroclimate reconstruction in warm and humid areas in subtropical China. |
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来源
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地理科学进展
,2012,31(1):72-77 【核心库】
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关键词
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树轮气候学
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大别山
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中国亚热带
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黄山松
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油松
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树轮宽度
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地址
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1.
武汉大学资源与环境科学学院, 武汉, 430079
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中国科学院地理科学与资源研究所, 北京, 100101
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美国圣地亚哥大学, 加州, 加州, 92110
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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林业 |
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基金
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国家重大科学研究计划
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国家自然科学基金
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文献收藏号
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CSCD:4437307
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