diameter and basal area ratio relationship with self-thinning in pinus taeda l. even-aged stands

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ID: 133800
2014
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Abstract

http://dx.doi.org/10.5902/1980509814584

This work aimed to study the relationship of the ratio of mean diameter and basal area at the self-thinning moment; the diameter tree growth; the occurrence and moment of self-thinning using the diameter-area proportion and the rate of self-thinning, comparing it to the law of the -3/2 power in stands of Pinus taeda L.. The data was collected from permanent plots experiment installed into a Pinus taeda L. stand and measured annually until 18 years-old with different spacing managed with complete density. The Tang model was used in order to relate the density of trees with the mean diameter. The self-thinning model showed precision and high efficiency. However, it showed a different slope coefficient of -1.65 that stressed from the self-thinning law of -3/2. At the self-thinning moment, the trees reached a diameter of 14 and 17 cm at the space of 2 x 2 and 3 x 3 with basal area of 38.8 and 47.5 m2/ha, respectively. In all spacing the maximum basal area was 78 m2/ha at 18 years old showing upward trend. In that spacing the diameter and basal area ratio at the moment of occurrence of self-thinning was 0.36 and 0.37, respectively.

 

Reference Key
schneider2014cinciadiameter Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Paulo Sérgio Pigatto Schneider;César Augusto Guimarães Finger;Paulo Renato Schneider
Journal journal of organic chemistry
Year 2014
DOI
10.5902/1980509814584
URL
http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/14584
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