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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
The difference in the content of Ca and Mg of moss Hypnum cupressiforme on two types of rock, serpentinite and granulite
 Paštyka, David ; Kocourková, Jana (advisor) ; Chrastný, Vladislav (referee)
Most of plants are negatively affected by specific characteristics of serpentine. It is mainly due to the low ratio of Ca: Mg, drought and high content of heavy metals. Specific vegetation occurs on the serpentine thanks to these characteristics. Although many scientists looked into the topic of serpentine, mosses were not focused that much. This research is dedicated to the difference in the content of moss Hypnum cupressiforme on serpentine and granulite in south Bohemia. This theses found out that bryophytes of serpentine contained significantly higher amounts of magnesium. Ca: Mg ratio was lower in plants at serpentine sites than at control sites. Calcium has been accumulated by mosses on the serpentine and granulite almost equally, on serpentine, magnesium was accumulated 13 times less and nickel 7 times less. Serpentine plants contained significantly higher amounts of nickel and chromium than granulite. More accurate conclusions would probably bring chemical analyzes of individual parts of bryophytes and analysis of its subsoil. It would be interesting to include pleurocarp and acrocarp mosses and liverworts.
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