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首页> 外文期刊>Quarterly Journal of Forestry >A comparison of direct sowing and planting of sessile oak (Quercus petraea (Matt.) Liebl.) in treeshelters
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A comparison of direct sowing and planting of sessile oak (Quercus petraea (Matt.) Liebl.) in treeshelters

机译：在树棚中直接播种和种植无梗栎（栎栎（Mat。）Liebl。）的比较

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摘要

In the UK, afforestation and restocking are generally achieved by planting nursery-grown stock with direct sowing regarded as a poor substitute. The purpose of this study, conducted in Bangor, Wales, was to compare the survival, growth and form of sessile oak (Quercus petraea) seedlings produced by direct sowing in treeshelters (shelters) with that of planted stock. Four treatments were used: open grown 1u1 plants, 1u1 plants in shelters, acorns dropped on the soil surface within shelters and acorns sown 5 cm below the soil surface within shelters. Growth, form and survival/germination data were collected after two years. Differences in survival between treatments were not significant and indicated that, when protected by shelters, direct sowing is comparable to planting. Acorns sown at a depth of 5 cm produced plants with the largest mean shoot height (79 cm), but there was no significant differences in root collar diameter between treatments. Root:shoot dry weight ratios were significantly larger in the planted stock than in the directly sown seedlings.
机译：在英国，植树造林和补给一般是通过种植苗圃苗并直接播种来实现的，这被认为是较差的替代品。在威尔士班戈进行的这项研究的目的是比较通过在树桩（棚架）中直接播种的无梗栎（Quercus petraea）幼苗的存活，生长和形态。使用了四种处理方法：开放生长的1u1植物，庇护所中的1u1植物，橡子落在庇护所内的土壤表面以及橡子播种在庇护所内土壤表面以下5厘米处。两年后收集生长，形态和存活/发芽数据。处理之间的存活率差异不显着，表明在有庇护所保护的情况下，直接播种可与种植媲美。播种深度为5 cm的橡子产生的植物的平均枝高最大（79 cm），但在处理之间根环直径没有显着差异。与直接播种的幼苗相比，种植的砧木的根：茎干重比明显更大。

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