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首页> 外文期刊>Quarterly Journal of Forestry >Is the practice of haloing successful in promoting extended life? - a preliminary investigation of the response of veteran oak and beech trees to increased light levels in Windsor Forest
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Is the practice of haloing successful in promoting extended life? - a preliminary investigation of the response of veteran oak and beech trees to increased light levels in Windsor Forest

机译：光环的做法能否成功延长寿命？ -对温莎森林中老橡树和山毛榉树对增加光照水平的响应的初步调查

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Veteran oak and beech trees within Windsor Forest have been released from competing plantation and secondary growth - this type of work is often referred to as haloing. This paper reports a preliminary attempt to monitor the success of this managementwork in terms of the survival of 40 of the trees treated in 2003-4 and their responses in terms of reiterative and epicormic growth in response to increased light levels. The biodiversity values of the trees have also been examined. In general, the haloing work has been very successful, especially where the halo size was larger and where groups of trees were involved rather than single trees. Veteran oak benefited most from this work but there have also been clear benefits for some of the veteran beech. The biodiversity importance of these trees is well illustrated by the discovery of fragments of the internationally rare and legally protected violet click beetle, Limoniscus violaceus, in one of the released trees. Follow-up additional release work isnow a priority if the benefits from the first phase of haloing are not now to be lost - the larger the area cleared of competing growth in the first phase of release the greater the benefit observed and the less follow-up work is needed. A tree monitoring form has been designed in order to aid documentation and analysis of the results of such conservation work. This should be adopted and further developed for use on other sites as so much of this type of conservation work is not adequately documented (whether for tree conservation or biodiversity); information is being lost and learnt lessons are not being shared.
机译：温莎森林中的老橡树和山毛榉树已从竞争性种植园和次生植物中释放出来-这种工作通常被称为光环。本文报告了一项初步尝试，以监测该管理工作是否成功，以2003-4年处理的40棵树木的存活率以及它们在光量增加时对光生和表皮生长的反应来进行。还检查了树木的生物多样性价值。通常，光晕工作非常成功，特别是在光晕大小较大且涉及树木组而不是单棵树木的地方。经验丰富的橡树从这项工作中受益最大，但是对于一些经验丰富的山毛榉也有明显的好处。在释放的其中一棵树中发现了国际稀有和受法律保护的紫罗兰甲虫Limoniscus violaceus的碎片，很好地说明了这些树对生物多样性的重要性。如果现在不损失光环第一阶段的收益，那么后续的额外释放工作现在将成为优先事项-在释放的第一阶段中，竞争增长所清除的面积越大，观察到的收益就越大，且后续行动就越少需要工作。设计了树木监测表格，以帮助记录和分析此类保护工作的结果。由于没有充分记录这类保护工作的大部分（无论是树木保护还是生物多样性），都应采用并进一步开发该方法以供在其他场所使用;信息正在丢失，学习的经验教训也没有得到分享。

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