Relationship Between Chinese Fir Growth and Solar Activity at Different Resolving Powers

WANG Jing-min

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Relationship Between Chinese Fir Growth and Solar Activity at Different Resolving Powers

- Relationship Between Chinese Fir Growth and Solar Activity at Different Resolving Powers
- Bulletin of Soiland Water Conservation Vol. 23, Issue 3, Pages: 21-23(2004)
- 作者机构：
  
  西北农林科技大学,陕西杨凌,712100
- 作者简介：
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- Published：2004
- 稿件说明：
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WANG Jing-min. Relationship Between Chinese Fir Growth and Solar Activity at Different Resolving Powers[J]. Bulletin of Soiland Water Conservation, 2004, 23(3): 21-23.
DOI：

WANG Jing-min. Relationship Between Chinese Fir Growth and Solar Activity at Different Resolving Powers[J]. Bulletin of Soiland Water Conservation, 2004, 23(3): 21-23. DOI：

摘要

利用db10小波函数

对太阳活动和杉木年轮宽度的相对指数序列进行小波分析

得到在不同分辨率上太阳活动的周期有11a

其中11a周期是主周期。在逼近空间上

观察到太阳活动处于上升阶段。杉木年轮宽度指数有9～12a左右的生长周期和5a的生长周期

其中12a周期是主周期。从逼近信息看

23a来杉木年轮宽度指数随时间变化先降

随后略有上升之势。

Abstract

The relationship between solar activity and the width of Chinese fir grow th-rings has been analysed on the basis of wavelength.There are two periods

11 years and 6 years

for solar activity

and two periods

9～12 years

and 5～6years

for the width of Chinese fir growth-ringsin Fujian Province.The results of the study indicate a negative correlation between width of Chinese fir growth-rings and solar activity.

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