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首页> 外文期刊>Berichte des Meteorologischen Institutes der Universitat Freiburg >Stem damage in radiata pine: observations with respectto site, silviculture and seedlot
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Stem damage in radiata pine: observations with respectto site, silviculture and seedlot

机译：辐射松的茎干损害：关于部位，造林和种地的观察

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摘要

Radiata pine is the predominant plantation forestry species in New Zealand, planted across awide range sites in terms of environmental conditions. Through the development and testing ofa tree and branch growth model, TreeBLOSSIM, it became apparent that it was common forindividual trees in experimental trials to have the occasional larger than expected branch, whichappeared to result from incidences of stem breakage. As large branches impact on both stemwood properties and log use, it was important to gain a wider understanding of the incidence ofstem breakage within New Zealand. An examination of qualitative stem description codes re-corded in trials showed that the percentage of trees withstem breakage is highly variable and,depending on site conditions, silvicultural treatment and seedlot, can reach least 50%.
机译：辐射松是新西兰主要的人工林，在环境条件方面广泛种植。通过树木和树枝生长模型TreeBLOSSIM的开发和测试，很明显，在实验试验中，个别树木偶尔会出现分支大于预期的现象，这似乎是由于茎断裂的发生所致。由于大树枝会影响材材特性和原木使用，因此重要的是要对新西兰内的茎干断裂发生率有更广泛的了解。对试验中记录的定性茎描述代码的检查表明，有茎折断的树木的百分比变化很大，并且取决于工地条件，造林处理和种子田，其比例可以达到至少50％。

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