Analysis of soil, roots and mycorrhizae in a Norway spruce declining forest☆
Analysis of soil, roots and mycorrhizae in a Norway spruce declining forest☆
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挪威云杉衰退林土壤、根系和菌根分析☆
DOI：
10.1016/s0045-6535(97)10151-5
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
U. Wolf
中科院分区：
文献类型：
--
作者：
B. Vinceti;E. Paoletti;U. Wolf
在挪威云杉（Picea abies（L.）喀斯特）。位于意大利阿尔卑斯山东北部的维戈迪顿。在两个相近的地区进行了研究，这两个地区的选择是因为它们的林龄和土壤类型相似，但树冠条件不同。两地区土壤理化参数差异不显著，但主要土层的体积和厚度存在差异。考虑到所有直径的根，与D（受损）区域相比，H（健康）区域的根密度显著更高。菌根化的百分比是非常高的，相似的H和D，显示在D中的频率较高的类型，较不复杂的分支和更显着的减少类型的多样性与深度。然而，它的结论是，下降的症状没有他们的主要起源在地下条件下，我们调查，因为缺乏统计学上的显着差异，这两个地区。
Decline symptoms have been detected in a Norway spruce (Picea abies (L.) Karst.) stand in Vigo di Ton on the Northeastern Italian Alps. Studies were carried out in two close areas which were chosen because of their similar stand age and soil type but differences in crown conditions. The two areas didn't show marked differences in the chemical and physical soil parameters investigated but varied in volume and thickness of main horizons. The density of roots was significantly higher in H (healthy) compared to D (damaged) areas considering roots of all diameters. The percentage of mycorrhization was very high and similar in H and D, showing in D a higher frequency of types with less complex ramification and a more marked decrease of diversity of types with depth. However, it is concluded that the symptoms of decline didn't have their main origin in the belowground conditions which we investigated, because of the lack of statistically significant differences between the two areas.