التفاصيل البيبلوغرافية
| العنوان: |
Analysis of Norway spruce dieback phenomenon in Latvia – a belowground perspective. |
| المؤلفون: |
Klavina, Darta, Menkis, Audrius, Gaitnieks, Talis, Velmala, Sannakajsa, Lazdins, Andis, Rajala, Tiina, Pennanen, Taina |
| المصدر: |
Scandinavian Journal of Forest Research; Mar2016, Vol. 31 Issue 2, p156-165, 10p |
| مصطلحات موضوعية: |
NORWAY spruce, ECOSYSTEM management, FOREST conversion, VEGETATION management |
| مصطلحات جغرافية: |
LATVIA |
| مستخلص: |
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 wasTylospora asterophora), the endophyteOidiodendron maiusand saprotrophic speciesCryptococcus magnus. Saprotrophic species had higher abundance in more damaged sites, suggesting a shift in fungal communities from ECM fungi. In conclusion, the results of this work suggest Norway spruce root system response to short-term climatic stress, which should be considered when planning spruce forest management, especially on organic soils with a high groundwater level. [ABSTRACT FROM AUTHOR] |
|
Copyright of Scandinavian Journal of Forest Research is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
