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Tree-ring widths as an indicator of air pollution stress and climate conditions in different Norway spruce forest stands in the Krkonoše Mts

Putalová, Tereza ; Vacek, Zdeněk ; Vacek, Stanislav ; Štefančík, Igor ; Bulušek, Daniel ; Král, Jan

Central European forestry journal, 2019-03, Vol.65 (1), p.21-33 [Periódico revisado por pares]

Zvolen: De Gruyter Poland

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  • Título:
    Tree-ring widths as an indicator of air pollution stress and climate conditions in different Norway spruce forest stands in the Krkonoše Mts
  • Autor: Putalová, Tereza ; Vacek, Zdeněk ; Vacek, Stanislav ; Štefančík, Igor ; Bulušek, Daniel ; Král, Jan
  • Assuntos: 20th century ; Air pollution ; Climate ; Climate change ; Climate effects ; Climatic conditions ; Coniferous forests ; Dendrochronology ; Desiccation ; Dieback ; Drought ; Drying ; Evergreen trees ; Forests ; Historical account ; Mental depression ; Picea abies ; Pine trees ; Pollution ; Pollution effects ; Precipitation ; Sulfur dioxide ; Synergism ; Temperature effects ; Tree rings ; Trees
  • É parte de: Central European forestry journal, 2019-03, Vol.65 (1), p.21-33
  • Descrição: Abstract The negative effect of air pollution on mountain spruce stands culminated in the 70s – 90s of the 20 th century, when an extensive dieback and disturbance of stands occurred in the Krkonoše Mts., the Czech Republic. Dendrochronological analysis was used on ten permanent research plots established in 1976–1980 to document the dynamics of radial increment of Norway spruce ( Picea abies [L.] Karst.). The objective was to determine the effect of SO 2 , NO X and O 3 concentrations and precipitation and temperatures on spruce radial growth in climax forests, waterlogged forests and cultivated forests. The results document the strong depression of diameter increment in the period 1979–1991 caused by synergism of climatic extremes and high SO 2 pollution in the 80s and 90s of the 20 th century. After 2000 climate had prevailing effect on radial growth. Spruce increment was in positive correlation with temperature, particularly with temperature in the growing season and annual temperature of the current year. In general, temperature had a more significant effect on increment than precipitation, mainly in climax and peaty spruce stands. Diameter increment was in significant negative correlation with SO 2 and NO X concentrations in all types of stands. Overall, peaty spruce stands were the most vulnerable to air pollution stress. Low radial increments were caused also by climate extremes, historically by strong frosts and winter desiccation in early spring, nowadays in time of climatic changes by extreme drought. Spruce stands have the ability of quickly responding by tree-ring width to both negative and positive impulses related with air pollution and climate.
  • Editor: Zvolen: De Gruyter Poland
  • Idioma: Inglês;Tcheco;Eslovaco
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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