Growth characteristics of standing individual Japanese oak (Quercus crispula) qualifying for barrel timber in a secondary forest

IF 3.7 2区农林科学 Q1 FORESTRY

Forest Ecology and Management Pub Date : 2025-09-23 DOI:10.1016/j.foreco.2025.123183

Akira Nakaya , Satoru Murakami , Hisashi Ohsaki , Yasuyuki Ohno , Toshiya Yoshida

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引用次数: 0

Abstract

The demand for Japanese oak (Mizunara; Quercus crispula) as barrel timber has been increasing. To prevent liquid leakage, small grain angles and abundant tyloses are essential. This study examined the grain angles and tylose filling ratios in Q. crispula and their relationships with individual tree growth characteristics. A total of 237 disks were collected at 3 m tree height at a 7.1 ha secondary forest dominated by Q. crispula. The grain angles were measured via the splitting method to calculate the absolute average (AGAab). The proportion of earlywood vessels filled with tyloses in the sapwood−heartwood transition zone (2 cm²) was also assessed (TFRtr). Relationships between AGAab, TFRtr, and various factors were analyzed via structural equation modeling. The most influential factor for AGAab was wood ec centricity (the estimated standardized path coefficient = 0.33, p < 0.01), followed by annual ring width (coefficient = 0.29, p < 0.05). This suggests that uneven and fast radial growth increases the grain angle. The strongest factor for TFRtr was annual ring width (coefficient = −0.21, p < 0.05), indicating that slow-growing trees allocate more resources to maintaining existing structures than to form new cells. These findings suggest that promoting rapid growth does not necessarily enhance wood quality. For barrel wood production, long-rotation forestry is recommended to ensure moderate competition.

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次生林中适于木桶材的立木日本栎（Quercus crispula）生长特征

日本橡木（Mizunara; Quercus crispula）作为桶材的需求一直在增加。为了防止液体泄漏，小颗粒角度和丰富的tylose是必不可少的。本文研究了松柏籽粒角、酪糖灌浆率及其与单株生长特性的关系。在7.1 ha的松柏次生林中，在3 m树高处共采集到237片松柏。采用劈裂法测量颗粒角，计算绝对平均值（AGAab）。还评估了边材-心材过渡区（2 cm²）早期木血管中充满叶黄素的比例（TFRtr）。通过结构方程模型分析AGAab、TFRtr与各因素之间的关系。对AGAab影响最大的因子是木材中心性（估计的标准化路径系数 = 0.33,p <； 0.01），其次是年轮宽度（系数 = 0.29,p <； 0.05）。这表明不均匀和快速的径向生长增加了晶粒角。对TFRtr影响最大的因子是年轮宽度（系数 = −0.21,p <； 0.05），表明生长缓慢的树木将更多的资源分配给维持现有结构，而不是形成新的细胞。这些发现表明，促进快速生长并不一定能提高木材质量。对于木桶木材生产，建议采用长轮作林业，以确保适度竞争。

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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来源期刊

Forest Ecology and Management 农林科学-林学

CiteScore

7.50

自引率

10.80%

发文量

665

审稿时长

39 days

期刊介绍： Forest Ecology and Management publishes scientific articles linking forest ecology with forest management, focusing on the application of biological, ecological and social knowledge to the management and conservation of plantations and natural forests. The scope of the journal includes all forest ecosystems of the world. A peer-review process ensures the quality and international interest of the manuscripts accepted for publication. The journal encourages communication between scientists in disparate fields who share a common interest in ecology and forest management, bridging the gap between research workers and forest managers. We encourage submission of papers that will have the strongest interest and value to the Journal''s international readership. Some key features of papers with strong interest include: 1. Clear connections between the ecology and management of forests; 2. Novel ideas or approaches to important challenges in forest ecology and management; 3. Studies that address a population of interest beyond the scale of single research sites, Three key points in the design of forest experiments, Forest Ecology and Management 255 (2008) 2022-2023); 4. Review Articles on timely, important topics. Authors are welcome to contact one of the editors to discuss the suitability of a potential review manuscript. The Journal encourages proposals for special issues examining important areas of forest ecology and management. Potential guest editors should contact any of the Editors to begin discussions about topics, potential papers, and other details.