落叶松边材和心材的季节动态变化

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Wood Research Pub Date : 2022-04-19 DOI:10.37763/wr.1336-4561/67.2.187197

Ying-Pe Chang, Chunlong Zheng, Xuejing Shao, Zhiyi Xia, Enhua Xi

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引用次数: 0

摘要

本研究通过回归分析，建立了落叶松生长季节树干半径、心材半径、边材宽度、树干生长环和不同高度心材生长环之间的关系，描述了落叶松心材转化的季节动态变化。结果表明，心材形成的初始年龄为7.25年。当树干半径大于2.6厘米时，心材开始形成，然后树干半径每增长1.00厘米，心材半径就增长0.85厘米。心材随月份的显著变化和生长速率高于树基和1m高的边材，但低于5m和9m高的边木。心材和边材面积的绝对含量随树高而降低，边材面积相对含量随树高而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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SEASONAL DYNAMIC CHANGES OF SAPWOOD AND HEARTWOOD IN LARIX GMELINII

This study describes the seasonal dynamic changes of heartwood transformation of Larix gmelinii by establishing the relationship between trunk radius, heartwood radius, sapwood width, trunk growth rings and heartwood growth rings in different heights during the growth season with regression analysis. The results showed that the initial age of heartwood formation was 7.25 years.Heartwood began to form when the trunk radius was greater than 2.6 cm, and then the heartwood radius grew 0.85 cm for every 1.00 cm growth of the trunk radius.It was also demonstrated that the significant change and growth rate of heartwood with month were higher than sapwood at the tree base and 1 m height, but lower than sapwood at 5m and 9 m height.The absolute content of heartwood and sapwood area decreased with tree height, however, the relative content of sapwood area increased with the tree height.

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来源期刊

Wood Research 工程技术-材料科学：纸与木材

CiteScore

2.40

自引率

15.40%

发文量

审稿时长

5.4 months

期刊介绍： Wood Research publishes original papers aimed at recent advances in all branches of wood science (biology, chemistry, wood physics and mechanics, mechanical and chemical processing etc.). Submission of the manuscript implies that it has not been published before and it is not under consideration for publication elsewhere.