| Name of article: | Stopa imisní kalamity v anatomických znacích dřeva smrku (Picea abies (L.) Karst.) v oblasti Klínovce (Krušné hory) |
|---|---|
| Number: | 2 |
| Year: | 2018 |
| Author: | Martin Lexa, Monika Vejpustková, Alina Samusevich, Aleš Zeidler |
Anatomical parameters can be considered as a sensitive indicator of environmental changes on the intra-annual level. Methods of quantitative wood anatomy were used to study the dynamics of xylem traits for spruce growing in so called „Black Triangle“ region where the fossil fuel emissions caused one of the globally highest pollutant depositions (SO2, NOx, F) in the 1970s and 1980s. The Klínovec study area was selected as a model area considering the combination of harsh climate and long-term air pollution load. The series of anatomical features such as number of tracheids, lumen area and cell wall thickness together with ring widths were examined for the entire tree life span. In the result we obtained a unique, more than hundred years long sequence of anatomical parameters covering the period before, during and after the extreme air pollution load. Number of cells and tree-ring widths were detected as the most responsive features, while lumen area and cell-wall thickness were only slightly affected during the peak time of pollution concentration. For the future research, we suggest studying the anatomical features of early wood and late wood cells separately to verify the differences in their response.
