Analysis of Norway spruce dieback phenomenon in Latvia – a belowground perspective
| Autor: | Darta Klavina, Taina Pennanen, Talis Gaitnieks, Sannakajsa Velmala, Tiina Rajala, Audrius Menkis, Andis Lazdins |
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| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
biology Forestry Picea abies 04 agricultural and veterinary sciences Oidiodendron maius biology.organism_classification 01 natural sciences Endophyte Tylospora asterophora Abundance (ecology) Soil pH Ectomycorrhizae Soil water Botany 040103 agronomy & agriculture 0401 agriculture forestry and fisheries 010606 plant biology & botany |
| Zdroj: | Scandinavian Journal of Forest Research. 31:156-165 |
| ISSN: | 1651-1891 0282-7581 |
| Popis: | In 2010, dieback of Norway spruce (Picea abies) was observed in Latvia. As mostly stands on seasonally or permanently water-saturated soils were damaged, we hypothesized that the recorded foliar damage might be associated with belowground factors. We established 48 sample plots in stands with damage symptoms for soil parameter evaluation and fine root sampling to determine the number of fine roots in different growth stages and to describe the associated fungal community. Among sample plots on organic soils, there were fewer viable older fine roots and greater number of dead fine roots in more damaged sites than in less damaged. These root parameters were significantly correlated with higher groundwater level and soil pH. The fungal community was dominated by ectomycorrhizal (ECM) species (the most common was Tylospora asterophora), the endophyte Oidiodendron maius and saprotrophic species Cryptococcus magnus. Saprotrophic species had higher abundance in more damaged sites, suggesting a shift in f... |
| Databáze: | OpenAIRE |
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