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首页> 外文期刊>Journal of Arboriculture >Factors predisposing urban trees to sunscald.
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Factors predisposing urban trees to sunscald.

机译：导致城市树木日晒的因素。

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摘要

A variety of cultural practices such as deep planting and flush-cut pruning, as well as trunk and root injuries, are suspected of being causal factors in the development of sunscald on ornamental trees. Emerald Queen Norway maple (Acer platanoides 'Emerald Queen') and Greenspire littleleaf linden (Tilia cordata 'PNI 6025') were transplanted with these conditions and injuries, and with current guidelines for transplanting followed. These same species with sunscald injuries were dissected and examined microscopically to determine if a source of the injury could be determined. Trees in all treatment categories developed sunscald except those deep planted and receiving followup watering. Most sunscald injuries were associated with flatheaded borer (Buprestidae spp.) damage. Dissections revealed a number of causes of sunscald injuries, including borer damage, canker-causing fungi, and radial cracks in the xylem. Reducing the incidence of sunscald injury may be as simple as adequate watering the firstgrowing season after transplanting.
机译：人们怀疑各种文化习俗，例如深植和齐整修剪，以及树干和根部受伤，是造成观赏树木上烫伤的原因。在这些情况和伤害下，移植了挪威翡翠皇后枫树（Acer platanoides'Emerald Queen'）和Greenspire littleleaf linden（Tilia cordata'PNI 6025'），并遵循了当前的移植指南。解剖这些遭受日晒伤害的相同物种，并进行显微镜检查，以确定是否可以确定伤害的来源。除深植和接受后续浇水的那些树木外，所有处理类别的树木均已升阳。多数遭受太阳烫伤的人与平头bore虫（Buprestidae spp。）损坏有关。解剖发现了许多导致日晒伤的原因，包括蛀虫损害，引起溃疡的真菌和木质部的放射状裂缝。减少晒伤的发生可能很简单，只需在移植后的第一生长季节浇水即可。

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