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How to determine sapling buckling risk with only a few measurements
- Source :
- American Journal of Botany, American Journal of Botany, 2007, 94 (10), pp.1583-1593, American Journal of Botany, Botanical Society of America, 2007, 94 (10), pp.1583-1593
- Publication Year :
- 2007
- Publisher :
- Wiley, 2007.
-
Abstract
- Tree buckling risk (actual height/critical buckling height) is an important biomechanical trait of plant growth strategies, and one that contributes to species coexistence. To estimate the diversity of this trait among wide samples, a method that minimizes damage to the plants is necessary. On the basis of the rarely used, complete version of Greenhill's model (1881, Proceedings of the Cambridge Philosophical Society 4(2): 65-73), we precisely measured all the necessary parameters on a sample of 236 saplings of 16 species. Then, using sensitivity (variance) analysis, regressions between successive models for risk factors and species ranks and the use of these models on samples of self- and nonself-supporting saplings, we tested different degrees of simplification up to the most simple and widely used formula that assumes that the tree is a cylindrical homogeneous pole. The size factor had the greatest effect on buckling risk, followed by the form factor and the modulus of elasticity of the wood. Therefore, estimates of buckling risk must consider not only the wood properties but especially the form factor. Finally, we proposed a simple but accurate method of assessing tree buckling risk that is applicable to a wide range of samples and that requires mostly nondestructive measurements.
- Subjects :
- 0106 biological sciences
Sample (statistics)
Plant Science
Biology
010603 evolutionary biology
01 natural sciences
STEM FORM
BIOMECANIQUE
Statistics
Genetics
Range (statistics)
Sensitivity (control systems)
Ecology, Evolution, Behavior and Systematics
SAPLING
TROPICAL RAIN FOREST
Ecology
CRITICAL BUCKLING HEIGHT
RISK FACTOR
Risk factor (finance)
Variance (accounting)
[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics
BIOMECHANICS
FRENCH GUIANA
Tree (data structure)
Buckling
Trait
TRUNK VOLUME
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15372197 and 00029122
- Volume :
- 94
- Database :
- OpenAIRE
- Journal :
- American Journal of Botany
- Accession number :
- edsair.doi.dedup.....101bd444cc91205d406f2837dd650110