树木年轮

  • 网络tree ring;tree-ring;treering
树木年轮树木年轮
  1. ESR方法初探树木年轮记载的气候效应

    Preliminary study on the records of climatic effect in tree ring using ESR method

  2. 这一结论对于定量地研究和应用树木年轮δ13C进行环境CO2和δa重建具有重要意义。

    This conclusion is of great importance to the application of tree ring δ 13 C in the reconstruction of the historical variation of environmental CO 2 and δ a.

  3. 科学家们通过查阅包括树木年轮、冰芯和湖泊沉积物在内的约700项记录,重现了过去2000年的主要气候事件。

    Scientists reconstructed the major climate events of the past 2000 years by looking at around 700 records , including tree rings , ice cores and lake sediments2 .

  4. 树木年轮δ~(13)C含量幼龄效应的定量化探讨

    A quantitative explanation of the juvenile effects of tree-ring δ ~ ( 13 ) C

  5. 树木年轮X射线检测底片的自动计数装置

    Auto-numerating device for X-ray photographic plate of annual rings in wood

  6. 树木年轮~(13)C/~(12)C比率记录的树木生长与生态环境关系的研究

    Analysis on the Relationship Between Tree-Growth and Ecology Environment by ~ ( 13 ) C / ~ ( 12 ) C Ratios of Tree Ring Cellulose

  7. 概述了环境污染、大气CO2浓度增加与树木年轮关系的研究现状,以及异常气候环境变化对树木年轮影响的最新研究进展。

    The present studying situation on the correlation between radial growth and environment pollution together with atmospheric CO 2 concentration were summarized . The progress on abnormal climate environment variable influencing tree rings was discussed .

  8. 用树木年轮重建天山中部近350a来的降水量

    Reconstruction of Precipitation in the Recent 350 a from Tree-Rings in the Middle Tianshan Mountains

  9. 首先本文利用Matlab软件读入树木年轮图像,然后进行预处理转化为灰度图像,并进行灰度均衡化的处理,消除了图像上的部分噪声,以便更好的得到年轮线。

    We first use Matlab software to read tree-ring image and convert the image to a gray-scale image . Then , we process the gray-scale image with image enhancement to eliminate the image noise . Finally , the ring lines can be extracted from the image .

  10. 树木年轮宽度的增加与温度、降水、太阳辐射、CO2浓度等气候因子有着复杂的相关关系。

    Tree_ring widths are significantly correlated with some climatic factors , such as temperature , precipitation , solar radiation and increasing atmospheric CO 2 . Temperature is found to be an important climatic factor for the growth of trees in arid and semiarid regions .

  11. 采用小波分析与毛毛虫-谱分析法相结合的方法,以树木年轮为代用资料,对关中地区未来20a的5~6月份降水趋势进行预测。

    The tree growth-ring proxy data are employed to analyze the precipitation trend by Wavelet analysis and singular spectrum analysis method in the central Shaanxi area from May to June in next 20 years .

  12. 冰芯、树木年轮和历史文献方法;

    Methods of ice core tree - ring and historical writing ;

  13. 祁连山东部地区树木年轮年表的建立

    The Establishment of Tree-ring Chronology in East Region of Qilian Mountains

  14. 树木年轮分析在环境变化研究中的应用

    Application of tree ring analysis to the study on environment variation

  15. 树木年轮所标志的气候演变过程的动力学特征

    Dynamic character of climatic evolutionary process for tree growth-ring Mark Design

  16. 北京市大气污染动态变化的树木年轮分析

    Tree ring analysis of the dynamic variation of air pollution in Beijing

  17. 树木年轮碳稳定同位素在气象中的应用

    The Application of Carbon Isotopes in Tree Rings to Meteorology

  18. 树木年轮中不同组分稳定碳同位素含量对气候的响应

    Response of stable-carbon isotope composition of different tree-ring compounds to climatic change

  19. 树木年轮宽度与气候因子的关系研究进展

    Advances in studies on the relationships between tree-ring width and climatic factors

  20. 采用青海两个树木年轮年表重建局地过去降水的初步分析

    Utilizing two Qinghai tree-ring chronologies to reconstruct and analyze local historical precipitation

  21. 利用树木年轮资料重建新疆东天山300多年来干旱日数的变化

    Utilizing tree ring chronologies to reconstruct 300-year drought days in eastern Tianshan Mountains

  22. 利用树木年轮重建六盘山地区1900年以来的干湿变化

    Reconstruction of humidity changes from tree rings in Liupan Mountains area since 1900

  23. γ-射线照相法无损检测树木年轮

    Non-destructive measurement of tree growth rings with method of γ - ray photography

  24. 华山松树木年轮对气候响应的模拟分析

    Modelling analysis of Huashan pine growth response to climate

  25. 气候变化与树木年轮结构关系研究进展

    Advances in Research on the Relationship between Climatic Variation and Tree Ring Structures

  26. 新疆树木年轮研究特色

    Features of the Studies on Tree Rings in Xinjiang

  27. 树木年轮参数图像检测方法研究

    Study on Image Detection Approach of Tree-Ring Parameters

  28. 城市环境中树木年轮的变异及其与工业发展的关系

    Variation of tree - ring in urban environment and its relation to industrial development

  29. 天山博格达峰地区树木年轮与近期的气候变化

    Tree Ring and Recent Climatic Variations in the Region of Bogda , Tian Shan

  30. 太白山树木年轮宽度资料对过去生态气候要素的重建

    Reconstruction of past eco-climate by tree-ring width index of Larix chinensis on Mt. Taibai