Nonlinear tree growth dynamics predict resilience to disturbance
Nonlinear tree growth dynamics predict resilience to disturbance
复制标题
非线性树木生长动力学预测对干扰的恢复能力
DOI：
10.1890/es15-00176.1
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发表时间：
2015
期刊：
影响因子：
2.7
通讯作者：
F. Stephen
中科院分区：
文献类型：
--
作者：
S. Billings;S. Glaser;A. Boone;F. Stephen
在干扰之后，为什么一棵树存活而另一棵树死亡？生理机制可以解释不同树种之间的干扰不同的反应，但很少有研究调查同种变化的森林干扰恢复力。我们建议，在树木中发现的动态信号可能会提供线索，他们的干扰后的命运。具体而言，树的线性与非线性生长动力学可以是其在干扰中存活的可能性的指标。在这里，我们调查了红栎（Quercus rubra L.）这些地区经历了干旱和昆虫袭击等干扰。早期的研究表明，在这些干扰中死亡的橡树在生命的第一年有更快的生长速度，但在树冠状态，大小，年龄或微生境之间没有明显的差异，幸存下来的树木和那些死亡。为了研究这些树木之间的生长动态的潜在差异，我们量化了单个树木的径向生长，并使用了两个前...
Following a disturbance, why does one tree survive while another dies? Physiological mechanisms may explain varying responses to disturbance between different tree species, but fewer studies have investigated conspecific variation in resilience to forest disturbance. We propose that a dynamic signal found in trees may provide clues to their post-disturbance fate. Specifically, linear versus nonlinear growth dynamics of a tree may be an indicator of its likelihood to survive a disturbance. Here, we investigate stands of red oak (Quercus rubra L.) that experienced disturbances in the form of drought and insect attack. Earlier work indicated that oaks dying during these disturbances had faster growth rates in their first years of life, but there was no obvious difference in canopy status, size, age, or microsite habitat between trees that survived and those that died. To investigate potential differences in growth dynamics between these trees, we quantified radial growth of individual trees and used two fore...
DOI：
10.1073/pnas.0505734102
发表时间：
2005-10-18
影响因子：
11.1
作者：
Breshears, DD;Cobb, NS;Meyer, CW
通讯作者：
Meyer, CW