MEAN ANNUAL INCREMENT, WOOD DENSITY AND VESSEL DIAMETER OF 42-YEAR-OLD Balfourodendron riedellianum AND Peltophorum dubium IN A HETEROGENEOUS PLANTING

IF 0.1 0 LITERATURE, ROMANCE
B. Zanatto, Paulo Sérgio Ferreira, Miguel Luiz Menezes Freitas, Eduardo Luiz Longui
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Abstract

The knowledge of wood from potentially producing species is desirable to propose the expansion of such product through plantations, thereby avoiding the illegal exploitation of wood in native forests. To this end, we evaluated mean annual increment, wood density and vessel diameter of Balfourodendron riedelianum and Peltophorum dubium in a heterogeneous planting at 42 years of age. We selected these species because they belong to different successional groups; B. riedelianum is late secondary and P. dubium is a pioneer species. We aimed to determine and then compare growth characteristics and to relate them to wood density and vessel diameter. P. dubium presented a higher mean annual increment compared to B. riedelianum, and this difference was directly related to successional group. These differences were also related to structural variations, in which B. riedelianum presented smaller vessel diameter compared to P. dubium, as well as denser wood, either by the slower growth, the consensus line of reasoning, or, alternatively, climax and high longevity species tend to have denser wood, while pioneer species have lower density when compared to other successional groups. For timber producers requiring high productivity with a faster cycle, P. dubium is the indicated species. On the other hand, if a producer prefers denser and more strength wood, albeit with slower cycle, then B. riedelianum is indicated. It was revealed that species can be planted together, allowing a longer cycle with the wood supply in different periods and with different characteristics.
异种栽培下42年生黄颡鱼和黄颡鱼的平均年生长量、木材密度和管径
对潜在生产树种的木材的了解有助于提出通过种植园扩大这类产品,从而避免在原始森林中非法开采木材。为此,我们评估了42年异种种植的黄颡鱼(Balfourodendron riedelianum)和黄颡鱼(Peltophorum dubium)的平均年生长量、木材密度和管径。我们选择这些物种是因为它们属于不同的演替类群;B. riedelianum为后期次生,P. dubium为先锋种。我们的目的是确定然后比较生长特性,并将它们与木材密度和导管直径联系起来。P. dubium的年平均增长量高于B. riedelianum,这种差异与演替组有直接关系。这些差异也与结构差异有关,在结构差异中,与P. dubium相比,B. riedelianum的管径更小,木材密度更大,要么是由于生长较慢,要么是由于顶极和高寿命物种倾向于拥有更致密的木材,而与其他演替类群相比,先锋物种的密度更低。对于木材生产者来说,需要高生产力和更快的周期,杜鹃是指定的树种。另一方面,如果生产者喜欢密度更大、强度更大的木材,尽管周期较慢,则表明是B. riedelianum。结果表明,不同树种可以种植在一起,在不同时期和不同特征的木材供应中允许更长的周期。
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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