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Assessment of load of small watercourses sediments with phosphorus
Pavlíková, Marcela ; Maršálek,, Blahoslav (referee) ; Hlavčová,, Kamila (referee) ; Malá, Jitka (advisor)
The issue of phosphorus in sediments of small watercourses and phosphorus forms are often out of interest, unlike phosphorus and its forms in sediments of water reservoirs. The thesis is focused on the development and evaluation of methods for the determination of total phosphorus by modifying commonly used methods and evaluation of methods for the determination of selected forms of phosphorus in small watercourses sediments. Over 1,152 analyses of sediment samples collected in four seasons and four locations and in three paralell determinations were done. The total phosphorus in the sediments was assessed by four methods, further 7 other forms of phosphorus were evaluated by one to three methods, according to different forms of phosphorus. The data file was subjected to statistical analysis. The aim of statistical analysis was to evaluate phosphorus concentrations, depending on the used method. Additional aim of statistical analysis was to observe dependencies of phosphorus concentrations on metals and identify the impact of periods and locations on the concentration of phosphorus.
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Assessment of load of small watercourses sediments with phosphorus
Pavlíková, Marcela ; Maršálek,, Blahoslav (referee) ; Hlavčová,, Kamila (referee) ; Malá, Jitka (advisor)
The issue of phosphorus in sediments of small watercourses and phosphorus forms are often out of interest, unlike phosphorus and its forms in sediments of water reservoirs. The thesis is focused on the development and evaluation of methods for the determination of total phosphorus by modifying commonly used methods and evaluation of methods for the determination of selected forms of phosphorus in small watercourses sediments. Over 1,152 analyses of sediment samples collected in four seasons and four locations and in three paralell determinations were done. The total phosphorus in the sediments was assessed by four methods, further 7 other forms of phosphorus were evaluated by one to three methods, according to different forms of phosphorus. The data file was subjected to statistical analysis. The aim of statistical analysis was to evaluate phosphorus concentrations, depending on the used method. Additional aim of statistical analysis was to observe dependencies of phosphorus concentrations on metals and identify the impact of periods and locations on the concentration of phosphorus.
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Forms of phosphorus in soils basin acidified mountain lakes
ČISLAKOVÁ, Patricie
The thesis focuses on the availability of phosphorus in soils basin acidified lakes in Šumava by Mehlich III extraction method. Compares the measured results of soil samples, collected in 2010 from the watersheds of Čertovo and Plešné Lake and evaluates the suitability of this extraction method for the determination of phosphorus availability in acidified forest soils.
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