一万年的树木年轮显示，碳14水平大约每420年上升和下降一次。
Ten thousand years of tree rings show that the carbon-14 level rises and falls about every 420 years.
在树木年轮看更重要。
黄河流域存在着两类不同的树木年轮取样环境。
There are two kinds of sampling environments for dendrochronological study.
所以，在这里挖出的冰核都能像树木年轮那样按季节数出年份来。
The ice cores pulled up at WAIS will be dated by counting back these seasonal layers as if they were tree rings.
祁连山中部公元904年以来树木年轮记录的旱涝变化。
Record of Drought and Flood Series by Tree-Ring Data in the Middle Section of Qilian Mountain Since 904 A. D.
尽管树木年轮表明当时发生了气候剧变，却没有任何数据解释这次剧变的原因。
But while the tree rings show variability, there is no data for why these climate changes occurred.
根据对树木年轮的观测，可以推测太阳的能量输出，甚至回溯到万年前的数据。
By looking at tree rings, the sun's energy output can be evaluated back as far as.
根据对树木年轮的观测，可以推测太阳的能量输出，甚至回溯到万年前的数据。
By looking at tree rings, the sun's energy output can be evaluated back as far as 10, 000 years... read more.
新昌硅化木中有明显的树木年轮，表明这种古气候可能存在一定的季节变化。
Visible tree rings of the Xinchang Petrified Wood indicate that there might be some seasonal changes in the ancient climate.
Dendro - climatologist -利用树木年轮来研究气候记录的研究学家。
Dendro-climatologist a researcher who USES tree rings to study the climate record.
本文利用川西高原4条树木年轮年表序列，分析了树轮年表和川西高原气象要素的关系。
The article analyzed the relationship between tree ring-width chronologies and the meteorological elements in west Sichuan plateau by sequential analysis of 4 tree-ring chronologies.
追溯和重建沈阳地区的生态环境变迁史，揭示城市环境质量与树木年轮变异之间的相关规律。
The results. h. w that under pollution condition, tree ring width and its element content varied sharply, which are closely …
树木年轮的碳同位素和冰核中钚同位素的检测都显示出在上述阶段的大多数时间内太阳辐射能量出现下降。
Isotopes of carbon in tree rings and beryllium in ice cores show a drop-off in solar radiation during much of the period.
这项丹麦发现是以自然本身气候的“档案”，冰核、树木年轮、船只航海日志和港口记录为基础。
The Danish findings are based on nature's own climate "archive" - ice cores and tree rings - as well as ships' log books and harbour records.
他们然后使用当地的降雪记录来寻找有气象记录的年代里降雪量和树木年轮中氧元素同位素的比率之间的关系。
They then used local snowfall records to find the relationship between precipitation and the proportion of heavy oxygen in tree rings for the years covered by the weather records.
利用冰川积累量和树木年轮代用资料，分析了中国西部地区近300年来气候干湿变化的时空特征。
The ice core and the tree ring proxy data are employed to analyze the temporal and spacial characteristics of dry and wet climatic changes in western China in recent 300 years.
并运用该方法对落叶松的年轮图像进行分割，结果表明，该方法对树木年轮图像的分割效果非常理想。
The results showed that the segmentation effect of the method on tree ring images was very ideal.
在典型的取样环境中，树木生长多遵循缓慢递减的规律，作生长量订正时，可采用传统的树木年轮学订正方法。
At the typical environment, the tree growth may basically follow the regulation of progressive decrease with the increased age .
由于树木年轮具有定年准确、连续性好、分辨率高、对环境变化敏感性强等优势，已在全球气候变化研究中被广泛应用。
The tree ring has been used widely in the field of global climate change due to its advantage of accurate for cross-dating, well continuity, high-resolution and high sensitivity to the environment.
使用这个标记，他已经建立了从泰国和越南的一系列树木年轮年表，以表明在十五世纪早期横贯大陆和东南亚的一段严重的干旱期。
Using it, he has built up a series of tree-ring chronologies from Thailand and Vietnam that indicate a period of severe drought across mainland South-East Asia in the early 1400s.
早期的气温数据是根据冰芯和树木年轮估算出来的，虽然不如温度计那么准确，但我们依然可看到，过去的十年是一千年来气温最高的十年。
Estimates of earlier temperatures made from data such as ice cores and tree rings, though not as reliable as thermometers, suggest the decade may have been the warmest in the past millennium.
他们收集的数据涉及到14种变量，包括人类身高，黄金价格，树木年轮密度，以及欧洲工业化之前公元1500年到1800年之间的温度变化。
They collected data on 14 variables, such as human height, the price of gold, tree ring width, and temperature from pre-industrial Europe between the years 1500 and 1800.
来自瑞士联邦学院的UlfBuentgen教授和他的研究队伍从中世纪古堡和罗马城废墟中搜寻古代的木头，企图收集关于树木年轮的信息。
Ulf Buentgen and his team of researchers at the Swiss Federal Institute for Forest, Snow and Landscape Research collected tree-ring data from ancient wood found in medieval castles and Roman ruins.
在1999年为世界气候组织所准备的图表中，Jones博士裁掉了树木年轮数据上跟气候变暖所矛盾的部分并粘贴上从温度计测量而来的数据。
In a graph prepared for the World Meteorological Organisation in 1999, Dr Jones cut off the divergent part of one set of tree-ring data and spliced on data from thermometers.
替换可能是一个令人惊叹的精确过程，因此贝壳纹饰的细节，树木的年轮和骨的微妙结构都被准确地保存。
Replacement can be a marvelously precise process, so that details of shell ornamentation, tree rings in wood, and delicate structures in bone are accurately preserved.
这种变化表现在树木的年轮中。
爬行动物的骨骼生长在本质上是周期性的，在骨头上产生一系列的同心圆，就像树木的年轮一样。
Bone growth in reptiles is periodic in nature, producing a series of concentric rings in the bone, not unlike the growth rings of a tree.
在地球上，人们认为，表明太阳黑子周期最可靠的迹象之一是树木的生长速度，就像树干横截面上可见的年轮一样。
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
你可以通过数年轮来判断树木的年龄，但是作为树木生命的记载，年轮能说明的东西远不止于此。
You can tell the age of a tree by counting its rings, but these records of trees' life really say a lot more.
此外，他和他的同事利用其他种类树木的年轮记录重构了此地区过去的气候情况。
In addition, he and his colleagues used tree-ring records from other species of trees to reconstruct the region's past climate.
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