针害对黑松立地树高生长的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2017-03-14 DOI:10.5558/TFC2017-008

NighGord

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引用次数: 2

摘要

场地指数是森林管理中的一个重要参数。选择好的站点树对于开发和应用模型来估计站点指数至关重要。除了其他特征外，现场树木必须没有损坏，以便树木的生长反映现场的潜在生产力。在现场树木中检测和避免前导损伤是非常困难的，因为径向茎的生长最终掩盖了损伤，即使在幼树中也是如此。该项目量化了由于隐藏的引线损坏而造成的高度增长损失。对37株lodgepole pine（Pinus contorta var.latifolia）现场树木进行了破坏性采样。测量了每年的身高增长，并记录了领导人受伤的事件。身高增长是在一个混合效应框架中建模的，并考虑到由于领导者损伤而导致的增长减少。损伤发生当年，身高增长平均下降35%，损伤发生后一年，身高增长下降15%。随后几年身高增长恢复正常。领导人大马士革的影响。。。

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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The effect of leader damage on lodgepole pine site tree height growth

Site index is an important parameter in forest management. Selecting good site trees is critical for both developing and applying models to estimate site index. Along with other characteristics, site trees must be free of damage so that the growth of the tree reflects the potential productivity of the site. Detecting and avoiding leader damage in site trees is very difficult because radial stem growth eventually hides the damage, even in young trees. This project quantifies the loss in height growth due to hidden leader damage. Thirty-seven lodgepole pine (Pinus contorta var. latifolia) site trees were destructively sampled. Annual height growth was measured and incidents of leader damage noted. Height growth was modelled in a mixed-effects framework and allowed for growth reductions due to leader damage. Height growth was reduced on average by 35% in the year the damage occurred and by 15% in the year after the damage event. Height growth returned to normal in subsequent years. The effect of leader damag...

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.