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首页> 外文期刊>Folia Forestalia Polonica: Series A - Forestry >Incidence of butt rot in Norway spruce seed stands in Poland’s mountain regions assessed with sonic tomography
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Incidence of butt rot in Norway spruce seed stands in Poland’s mountain regions assessed with sonic tomography

机译：超声层析成像技术评估挪威云杉种子在波兰山区的对接腐烂发生率

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The incidence and severity of butt rot were assessed in 12 selected Norway spruce seed stands in the Beskidy Mountains, Poland. A semi-invasive technique of sonic tomography was used for the assessment of rot damage. Stands of different age classes (100-120, 130-150, 160-170 years old) and distinct regions of provenance (Istebna and Orawa) were investigated. Hierarchical analysis of variance was used to determine effects of stand age and stand provenance on butt rot occurrence at a stand level. High incidence of butt rot was noted in all of the studied seed stands (47% to 87% of diagnosed tree samples). Stand age had a significant effect on percentage share of ‘damaged wood’ on the tomogram. The extent of rot damage was rising with stand age, and the largest was observed in the age category 160-170 years. Spruce stands of Istebna provenance were generally more damaged by butt rot than those of Orawa provenance, however, the latter have been growing in forest sites more suitable for spruce in terms of fertility and altitude. Hierarchical analysis of variance did not show a statistically significant relationship between the region of provenance and average share of ‘damaged wood’ on the tomogram. Presented results indicate that for stands growing in similar conditions vulnerability to butt rot is determined by stand age. Further research is needed to separate impact of stand provenance identified with specific genetic constitution of a population from the effect of environmental conditions typical of a given region of provenance.
机译：在波兰Beskidy山的12个选定的挪威云杉种子摊中评估了对接腐烂的发生率和严重程度。超声层析成像的一种半侵入性技术被用于评估腐烂的损害。研究了不同年龄等级（100-120、130-150、160-170岁）和不同产地（Istebna和Orawa）的林分。使用方差的分层分析来确定林分年龄和林分出产对林分水平上对接腐烂的影响。在所有研究的种子林中，对接腐烂的发生率都很高（占诊断出的树木样本的47％至87％）。摊位年龄对断层图上“受损木材”的百分比份额有重大影响。腐烂损害的程度随着林分年龄的增长而增加，在160-170岁年龄组中观察到最大。与Orawa种源相比，Istebna种源的云杉林通常比Orawa种源受到更多的对接腐烂损害，但是后者在森林地区生长，从肥力和海拔高度来看，它们更适合于云杉。方差的分层分析未显示出来源区域与断层图上“损坏的木材”的平均份额之间的统计显着性关系。提出的结果表明，对于在相似条件下生长的林分，对接烂的脆弱性由林分年龄决定。需要进一步的研究，以将通过种群的特定遗传构成鉴定出的林分来源与给定来源地区典型的环境条件的影响区分开。

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