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首页> 外文期刊>Soil Biology & Biochemistry >Differences in the growth and ectomycorrhizal community of Dryobalanops lanceolata (Dipterocarpaceae) seedlings grown in ultramafic and non-ultramafic soils
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Differences in the growth and ectomycorrhizal community of Dryobalanops lanceolata (Dipterocarpaceae) seedlings grown in ultramafic and non-ultramafic soils

机译：在超镁铁质和非超镁铁质土壤中生长的Dryobalanops lanceolata（Dipterocarpaceae）幼苗的生长和外生菌根群落的差异

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Ultramafic soils have naturally high concentrations of metals and are often low in major plant nutrients. Plant species of non-ultramafic origin, such as Dryobalanops lanceolata (Dipterocarpaceae), generally grow less well on these soils. I found minimal changes in growth, but a 17% reduction in foliar potassium, when seedlings of D. lanceolata were grown in a non-native ultramafic soil when compared with a normal tropical ultisol. There were, however, marked changes in the ectomycorrhizal community structure on the roots of D. lanceolata. Cenococcum geophilum was at least 10 times more common and Inocybe sp. was one and a half times more common in non-ultramafic soils, whereas Boletales sp. was over 30 times more common in the non-ultramafic soil. These changes may have been brought about by a number of edaphic differences between the two soil types, including high metal concentrations and differences in organic matter content.
机译：超镁铁质土壤自然含有高浓度的金属，并且主要植物养分通常较低。非超自然起源的植物物种，例如轮叶芒草（Dryobalanops lanceolata）（龙脑香科），在这些土壤上的生长状况通常较差。与正常的热带ultisol相比，当D. lanceolata的幼苗生长在非天然的超镁铁质土壤中时，我发现生长的变化很小，但叶钾减少了17％。然而，D.lanceolata根上的外生菌根群落结构发生了明显变化。 Cenococcum geophilum是Inocybe sp。的至少10倍。在非超酸性土壤中的含量是普通葡萄的一半半，而牛肝菌则是。在非超酸性土壤中的含量是普通土壤的30倍以上。这些变化可能是由两种土壤类型之间的许多深层差异引起的，包括高金属浓度和有机质含量差异。

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