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首页> 外文期刊>Arboricultural Journal: The International Journal of Urban Forestry >Root space underneath traffic lanes.
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Root space underneath traffic lanes.

机译：行车道下方的根部空间。

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摘要

Tree roots need certain essential conditions for optimal growth. These include, for instance: enough space, enough ground air ventilation and moisture, sufficient amounts of macro- and micro-nutrients, as well as the existence of symbionts. However, these conditions are not always found at potential rooting zones for urban street trees. Rooting zones often lack space and the soil is often too compacted. Furthermore, the surface is sealed off with materials impermeable to water and air, thereby causing additional problems for growth. Additional problems arise if street trees are planted in narrow central strips between traffic lanes. The tree roots are stuck between the concrete kerbstones of the lanes on both sides and in such cases the soil often consists of highly-compressed building material through which tree roots cannot grow. These are some of the reasons why many trees that are planted in such places are in a very poor condition. Similar poor development of trees is observed when trees are planted in small planting pits in highly-compacted road beds or in poor soil. In the city of Osnabruck (Germany), officers responsible for trees and arboriculture and for road construction worked together to find solutions to these problems by using novel methods for the creation of additional rooting zones for trees. The structures underneath traffic lanes are referred to as Wurzelkanale (Root Ducts) and Wurzelkammern (Root Chambers).
机译：树的根需要某些必要条件才能实现最佳生长。例如，这些因素包括：足够的空间，足够的地面空气通风和水分，足够量的大量和微量营养素以及共生体的存在。但是，这些条件并不总是在城市行道树的潜在生根区中发现。生根区通常缺乏空间，土壤通常过于密实。此外，用不透水和不透气的材料将表面密封，从而引起生长的其他问题。如果将行道树种植在行车道之间的狭窄中央带中，则会出现其他问题。树木的根部卡在两侧车道的混凝土路缘石之间，在这种情况下，土壤通常由高度压缩的建筑材料组成，树木的根部无法生长。这些都是在这些地方种植的许多树木状况极差的一些原因。在高密路基或土壤贫瘠的小种植坑中种植树木时，也会观察到类似的树木发育不良情况。在奥斯纳布吕克市（德国），负责树木和树木栽培以及道路建设的官员通力合作，通过使用新颖的方法创建树木额外的生根区来寻找解决这些问题的方法。行车道下方的结构称为“风管”（Wurzelkanale）和“根室”（Wurzelkammern）。

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