中国红松年轮纤维素碳同位素组成对中国东部气温变化的响应  

RESPONSE OF CARBON ISOTOPE COMPOSITION OF CHINESE RED PINE ANNUAL GROWTH RING CELLULOSE TO EAST CHINA TEMPERATURE VARIATIONS

作　　者：尹璐 安宁[2] 龙良平[2] 刘莹[2] 刘广深[3] 陶发祥[2] 

机构地区：[1]贵阳市环境保护研究所,贵州贵阳550002 [2]中国科学院地球化学研究所环境地球化学国家重点实验室稳定同位素生物气候学研究组,贵州贵阳550002 [3]浙江大学资源与环境学院,浙江杭州310028

出　　处：《矿物学报》2005年第2期103-106,共4页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目(批准号:40472089)

摘　　要：分别逐轮测定两棵中国红松的年轮纤维素碳同位素组成,获得两个长达109a(1880—1988年)的时间序列。合成一个新序列并移去趋势变化后,与同样长度的中国东部年气温变化序列进行交叉相关分析。结果表明树轮碳同位素组成对生长当年之前第二年温度变化具有灵敏响应(r=0.373,n=109,p<0.001)。同时,碳同位素组成也与其中一棵树的年轮宽度呈高度负相关(r=-0.390,n=109,p<0.001)。这一方面揭示了中国红松年轮稳定碳同位素组成序列在重建高分辨率区域性气候变化中的重要作用,也说明树轮碳同位素组成转录气候变化信号的复杂性。Two 109-years-old time series of tree ring cellulose carbon isotope composition from two Chinese red pines （ Pinus koraiersis） were obtained. They were merged and detrended. A new series was constructed. A negative correlation was found between the new series and the detrended ring width series of one of two trees（ r =-0.390, n = 109, p 〈 0.001 ）.Moreover, a positive correlation exists between the carbon isotope composition of the new series and the last second year temperature of east China （ r = 0.373, n = 109, p 〈 0. 001 ）. This may set up a new path for regional climate reconstruction by using tree ring cellulose carbon isotope series. On the other hand, it implies that the process for tree ring cellulose to transdt, ce climate signals is very sophisticated.

关 键 词：红松 树轮 纤维素 碳同位素 气温变化 

分 类 号：P597[天文地球—地球化学] X142[天文地球—地质学]