Scholarlink

<p>Global forests are projected to undergo significant changes due to climate change in the recent decades and there is an urgent need to understand the response of tropical trees in terms of their growth and wood anatomy. Hence, a study was conducted to evaluate the growth and wood traits of <i>Acacia auriculiformis</i> (5&#xa0;years old plantations) at three rainfall zones (RFZ) namely., high RFZ (Mean Annual Rainfall: 3000&#xa0;mm), medium RFZ (1500&#xa0;mm), and low RFZ (1000&#xa0;mm). Observations on the growth parameters like Survival percentage, Total tree height, Diameter at Breast Height, Crown height, Bark thickness were recorded and wood core samples were collected for the estimation of anatomical traits. The study revealed that, the RFZ had a significant impact on the tree growth resulting in maximum individual tree volume production of 0.028 m<sup>3</sup> in high RFZ. Further, the low RFZ recorded longer, wider and thicker fibres compared to high and medium RFZ. In case of vessel parameters, the high RFZ recorded the maximum value for vessel diameter (145.80&#xa0;µm) where as low RFZ recorded significantly higher value for the vessel frequency (7.55/mm<sup>2</sup>). Under low RFZ, the vessel frequency increased by 16 per cent, partially offsetting the reduced conductivity of narrower vessels while maintaining a lower cavitation vulnerability. This validates a climate smart technique adopted by the species in terms of wood fibre traits to the moisture stress condition making it a better species choice for the vulnerable climate conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Growth and wood anatomical properties of Acacia auriculiformis A.Cunn. ex Benth. planted under varied climatic conditions in Karnataka

  • 期刊论文

  • 发表日期：

    2026年1月20日

查看全文
  • Supriya K. Salimath,
  • Ramakrishna Hegde,
  • G. Ganapati,
  • V. Maheswarappa,
  • T. S. Hareesh,
  • Mohan Varghese

摘要

Global forests are projected to undergo significant changes due to climate change in the recent decades and there is an urgent need to understand the response of tropical trees in terms of their growth and wood anatomy. Hence, a study was conducted to evaluate the growth and wood traits of Acacia auriculiformis (5 years old plantations) at three rainfall zones (RFZ) namely., high RFZ (Mean Annual Rainfall: 3000 mm), medium RFZ (1500 mm), and low RFZ (1000 mm). Observations on the growth parameters like Survival percentage, Total tree height, Diameter at Breast Height, Crown height, Bark thickness were recorded and wood core samples were collected for the estimation of anatomical traits. The study revealed that, the RFZ had a significant impact on the tree growth resulting in maximum individual tree volume production of 0.028 m3 in high RFZ. Further, the low RFZ recorded longer, wider and thicker fibres compared to high and medium RFZ. In case of vessel parameters, the high RFZ recorded the maximum value for vessel diameter (145.80 µm) where as low RFZ recorded significantly higher value for the vessel frequency (7.55/mm2). Under low RFZ, the vessel frequency increased by 16 per cent, partially offsetting the reduced conductivity of narrower vessels while maintaining a lower cavitation vulnerability. This validates a climate smart technique adopted by the species in terms of wood fibre traits to the moisture stress condition making it a better species choice for the vulnerable climate conditions.