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Vyhodnocení koloběhu hořčíku ve smíšeném porostu v oblasti Drahanské vrchoviny
Hartl, Vít
Magnesium is one of the major biogenic elements for both - plants and animals. It is involved in many metabolic processes concerning plants, and most importantly magnesium is associated with photosynthesis. This bachelor thesis evaluates the flows and stocks of magnesium on the level of the forest cover and of the soil in the Drahanská vrchovina Upland (location: 49 ° 28'2 .976 "N, 16 ° 41'18 .181" E) in a mixed forest cover (beech, spruce, silver, fir) on the modal oligotropic Cambisol of the silver/beech forest vegetation zone at the age of 130 years at an altitude of 610-620 m above the sea level. In the forest cover, there is accumulated 23 655 kg.Mg.ha-1 in the overlying humus and soil. The precipitations in open area make 0.93 kg.Mg.ha-1.year-1. The soil receives annually 2.55 kg.Mg.ha-1 by throughfall precipitations. The input of magnesium by the seepage waters under A0 horizon (forest floor) is calculated in the amount of 2.37 kg.Mg.ha-1. The obtained results are extending the knowledge of the flow and the occurrence of magnesium in the soil in mixed forest covers.

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