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Właściwości gleby pod okapem czterech gatunków drzew leśnych po 30 latach od ich posadzenia na dwóch różnych siedliskach

机译:在两个不同的生境上种植30年后,四种林木树冠下的土壤特性

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摘要

The main objective of this study was to demonstrate a relationship between the direction and effectiveness of impact of particular tree species on soil properties and the initial site fertility. The studies were conducted on two neighbouring experimental plots with different forest site types (fresh mixed coniferous forest - BMsw and fresh mixed deciduous forest - LMsw). The analysed species Norway spruce (Picea abies L. Karst.), European larch (Larix deciduas Mill.), Douglas fir (Pseudotsuga menziesii Franco) and penduculate oak (Quercus robur L.) were planted in three replications on 400 m~2 plots. It was stated that: 1) the humification processes ongoing under the canopy of the analysed tree species are, to a large degree, determined by the type of forest site; 2) under the same tree species the content of calcium and nitrogen in the nitrate form was found to by markedly lower in the BMs'w forest site; 3) in the BMsw forest site, the pH and electrolytic conductivity of the soil under the majority of the analysed tree species were lower; 4) the degrading impact of coniferous species on soil was noticeably stronger on the poorer BMsw forest site.
机译:这项研究的主要目的是证明特定树种对土壤特性的影响的方向和有效性与初始肥力之间的关系。该研究是在两个相邻的具有不同林地类型的实验地块上进行的(新鲜混合针叶林-BMsw和新鲜混合落叶林-LMsw)。被分析的物种挪威云杉(Picea abies L.Karst。),欧洲落叶松(Larix deciduas Mill。),花旗松(Pseudotsuga menziesii Franco)和小腿栎(Quercus robur L.)在400 m〜2块地上分三批种植。 。有人指出:1)被分析树种冠层下正在进行的增湿过程在很大程度上取决于林地类型; 2)在同一树种下,发现BMs森林中硝酸盐形式的钙和氮含量明显降低; 3)在BMsw林区,大多数被分析树种的土壤pH值和电解质电导率较低; 4)在较贫困的BMsw林区,针叶树种对土壤的降解作用明显增强。

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  • 来源
    《Sylwan》 |2006年第8期|p.26-37|共12页
  • 作者单位

    Zespół Szkół Przyrodniczych;

    ul. Kasztelańska 1;

    56-300 Milicz;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 pol
  • 中图分类 林业;
  • 关键词

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