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首页> 外文期刊>South-East European Forestry >The Effect of Polypropylene Tree Shelters on Growth and Survival of Pedunculate Oak Seedlings (Quercus robur L.)
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The Effect of Polypropylene Tree Shelters on Growth and Survival of Pedunculate Oak Seedlings (Quercus robur L.)

机译：聚丙烯庇护所对有花梗橡木幼苗（Quercus robur L.）生长和存活的影响

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Background and Purpose: The declining and dieback of lowland oak forests as the result of global climate change, as well as the attack of various pathogenic organisms, industrial pollution, and other negative effects reduce acorn yield and will continue to do so in the future. As a result of this fact, the areas on which artificial regeneration will be applied by planting seedlings will have to be increased. The artificial regeneration process is more expensive than the natural one, so protection measures need to be applied to minimize the loss of young seedlings. Materials and Methods: Experimental plots were set up in the forest area of Spa?va Basin. A completely randomized block design experiment in four repetitions was used, in which four variants of planting and protection of oak seedlings were examined. We tested polypropylene tree shelters and hydrophilic superabsorbent based on maize starch. Heights of the plants were measured by measuring tape, and survival was registered by numbering of dead and living plants. For statistical purposes, we have used analysis of variance (repeated measure ANOVA), which allows us to prove statistically significant difference between morphological traits of studied variants. Results: Two years after planting, the lowest level of survival was found in unprotected seedlings (79.5%), while tree shelters provided the best conditions for seedlings survival (88.75%). In the case with the hydrophilic granules Zeba the result is slightly worse. When analyzing average height in a particular case, significantly higher plants are recorded in cases where the polypropylene tree shelters are used. The average height, with tree shelters (128.27 cm), is more than three times higher than the unprotected seedlings (37.97 cm). The addition of hydrophilic granules did not show a statistically significant difference. In cases where the seedlings were not under the tree shelter protection, the effect of hydrophilic granules was also not statistically significant. Conclusions: Sheltering accelerated the height growth of the planted oaks substantially and also provided best conditions for seedlings survival. During the research period the usage of Zeba did not justify the purpose for which it was applied. Although the first results are promising in order to gain a complete insight into the potential of tree shelters it is necessary to record the changes and maintain the experiment for a further 2-3 years with quantification of other harmful factors that may appear (drought, game etc.) after which a more reliable judgment regarding their usefulness could be provided.
机译：背景和目的：全球气候变化导致低地橡树林的衰退和枯萎，以及各种病原生物的入侵，工业污染和其他负面影响降低了橡子的产量，并将在未来继续这样做。结果，必须增加通过种植幼苗进行人工再生的面积。人工再生过程比自然再生过程昂贵，因此需要采取保护措施以最大程度减少幼苗损失。材料与方法：在斯帕瓦盆地的森林地区建立实验区。使用了四个重复的完全随机区组设计实验，其中研究了橡树幼苗的种植和保护的四个变体。我们测试了基于玉米淀粉的聚丙烯树遮盖物和亲水性超强吸收剂。用卷尺测量植物的高度，并通过对死的和活的植物进行编号来记录存活。出于统计目的，我们使用了方差分析（重复测量ANOVA），这使我们能够证明所研究变体的形态特征之间在统计学上有显着差异。结果：播种两年后，未保护的幼苗的存活率最低（79.5％），而树荫处为幼苗的存活提供了最佳条件（88.75％）。如果使用Zeba亲水性颗粒，则结果会稍差。在特定情况下分析平均高度时，在使用聚丙烯树遮盖物的情况下，记录的植物要高得多。具有树遮蔽物的平均高度（128.27厘米）比未保护的幼苗（37.97厘米）高三倍以上。亲水颗粒的添加没有显示统计学上的显着差异。如果幼苗不在树屋的保护下，则亲水颗粒的作用也没有统计学意义。结论：庇护极大地促进了橡树的高度生长，也为幼苗的生存提供了最佳条件。在研究期间，Zeba的使用并不能证明其用途的合理性。尽管最初的结果令人鼓舞，以便全面了解树木遮蔽物的潜力，但有必要记录下这些变化并将实验继续进行2-3年，并量化可能出现的其他有害因素（干旱，野味等），然后可以提供有关其用途的更可靠的判断。

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