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Phosphorus in sediments of small rivers
Zborovská, Jarmila ; Hrich, Karel (referee) ; Malá, Jitka (advisor)
This thesis deals with assessment of two small water courses Leskava and Troubsky brook. Streams are evaluated from two aspects: content of three forms of phosphorus TP, Panorg and Porg and hydromorphological assessment. Total phosphorus was determined by sample mineralization by H2SO4+H2O2. Pinorg and Porg were determined by a method published by Pardo. Hydromorphological assessment was done by methodology Králová at al.
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Hodnocení stavu lesních vodotečí na území polesí Cikháj v majetku KINSKÝ Žďár, a.s.
Haluza, Vojtěch
This master's thesis summarizes the current state of forest watercourses and partial watersheds of in the Městecký stream watershed and the Stružný stream watershed. Within each watershed, a detailed terrain survey of watercourses was conducted. Identified damages and their extent to the watercourses, as well as the objects of the watercourse and their technical parameters were recorded. This way, 36 points were mapped altogether, of which 17 points show signs of damage or are in a state of endangerment. For each of these 17 points, a catalogue sheet was created. All essential information can be found in this sheet. Based on the results and publications, it was evaluated that the watercourses, in their natural state, are in a good condition. In general, the same can be said about partial watersheds. In order to improve the retention capacity of the locality, one area was distinguished in the melioration system for the construction of a small pond. The most frequently encountered issues from the identified points are clogged and damaged culvert that transfer watercourses under forest roads. Another significant phenomenon is damaged and endangered fords, highly deepened channels, bank erosion, or the violation of forest unpaved roads by driven tracks. These phenomena are more of the owner concern. This thesis thus serves as a basis for further decision-making and planning in the regional administration of watercourses in the area of interest.
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Impact of urban drainage on heavy metal concentration in aquatic ecosystems
Darmovzalová, Marie ; Komínková, Dana (advisor) ; Hořická, Zuzana (referee)
Urban streams are influenced by number of human activities. Diploma thesis discusses the impact of urban drainage (specifically storm water drains) on toxic metal concentrations, of, in one of Prague's minor creeks - Zátišský Creek. Zátišský Creek flows from the right side to the Vltava River. The creek is 3080 m long with a natural flow 1.9 m3 /s. The creek is affected by seven storm water drains and three rain settling tanks. The creek was monitored from April 2009 to June 2010 during this period six sampling campaign was conducted. The samples were collected from seven remote sampling points, located both upstream and downstream from the storm water drains and rain settling tanks. The impact of storm water drains was assessed based on monitoring of toxic metals content in different parts of the aquatic environments, samples of water, sediment and aquatic biota (benthic organisms and attached algae) were collected and analyzed. The sediment samples and organisms were dried by lyophilisation (freeze dry), and digested in a microwave oven using a solution of nitric acid and hydrogen peroxide. Metal concentrations were determined by Atomic Absorption Spectrometry utilizing instrument Solaar S. Overall nine metals were identified: cadmium, lead, nickel, chromium, copper, zinc, aluminum, manganese...
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Impact of urban drainage on heavy metal concentration in aquatic ecosystems
Darmovzalová, Marie ; Komínková, Dana (advisor) ; Hořická, Zuzana (referee)
Urban streams are influenced by number of human activities. Diploma thesis discusses the impact of urban drainage (specifically storm water drains) on toxic metal concentrations, of, in one of Prague's minor creeks - Zátišský Creek. Zátišský Creek flows from the right side to the Vltava River. The creek is 3080 m long with a natural flow 1.9 m3 /s. The creek is affected by seven storm water drains and three rain settling tanks. The creek was monitored from April 2009 to June 2010 during this period six sampling campaign was conducted. The samples were collected from seven remote sampling points, located both upstream and downstream from the storm water drains and rain settling tanks. The impact of storm water drains was assessed based on monitoring of toxic metals content in different parts of the aquatic environments, samples of water, sediment and aquatic biota (benthic organisms and attached algae) were collected and analyzed. The sediment samples and organisms were dried by lyophilisation (freeze dry), and digested in a microwave oven using a solution of nitric acid and hydrogen peroxide. Metal concentrations were determined by Atomic Absorption Spectrometry utilizing instrument Solaar S. Overall nine metals were identified: cadmium, lead, nickel, chromium, copper, zinc, aluminum, manganese...
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Impact of antropogenic activities on ecological status of the Meredský creek
Rosypalová, Hana ; Komínková, Dana (advisor) ; Libuše, Libuše (referee)
The presented thesis deals with the evaluation of the ecological status of small watercourse Meredský creek situated in Central Bohemia. Meredský creek springs in the village of Záborná Lhota, runs through the village of Chotilsko and behind the village of Čím empties into the river Vltava. This creek is affected by the urbanization, in the catchment area there is continual livestock grazing and there are several bigger water areas and smaller ponds situated on the creek. The landscape is completed by the mixed and coniferous forests and meadows.
The evaluation rate of the pollution was determined according to the selected physical and chemical indicators of the water quality directly in the flow or evaluated in the laboratory conditions, biological status was determined by the community of aquatic macroinvertebrates (saprobity index, ASPT index, BMWP score, Margalef´s diversity index) and hydromorpohological status (average status) was evaluated too.
The final ecological status was evaluated according to the Czech State Standard 75 7221 and requirements given by the environmental quality standards. Concentrations of ammonia, total phosphorus, nitrates, chlorides, dissolved oxygen were accomplished as not meeting environmental quality standards. According to the saprobity index, ASPT index, BMWP score water quality is average. Meredský creek reached the 3rd Class of hydromorphological status. According to the chemical status final ecological status is established as not meeting the requirements of the environmental quality standards and general measures leading to the better ecological status are suggested.
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Phosphorus in sediments of small rivers
Zborovská, Jarmila ; Hrich, Karel (referee) ; Malá, Jitka (advisor)
This thesis deals with assessment of two small water courses Leskava and Troubsky brook. Streams are evaluated from two aspects: content of three forms of phosphorus TP, Panorg and Porg and hydromorphological assessment. Total phosphorus was determined by sample mineralization by H2SO4+H2O2. Pinorg and Porg were determined by a method published by Pardo. Hydromorphological assessment was done by methodology Králová at al.
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Revize pasportů DVT ve správě VLS ČR, s.p., divize Plumlov, LS Rychtářov
Zajícová, Zuzana
The thesis deals with inventory and review previously created inventories on small watercourses in properties found in the cadastral areas of communes Doubrava u Březiny Krásensko, Podomí, Ruprechtov and Rychtářov that are managed by state enterprise Vojenské lesy a statky, Divizion Plumlov. The aim of inventory consists of field inspections on watercourses, targeting position of aimed points, description of troughs current state or description of objects and noticing its fundamental technical parameters. The inventory revision compares current state of technical objects to its previous state and evaluates implemented modifications. In this way 34 small watercourses belonging to the basin of significant small watercourse Malá Haná were inventoried. Its total length is 41.3 km on the area of 40.9 km2. Based on the results it is claimed these watercourses are in good condition, their troughs have been only minimally modified. The most common problem is non-functional blocked culverts that transfer forest paths across the watercourses. The second phenomenon occurring very often is bank ripping which threatens bodies of forest paths in many cases. It was recommended to stabilize these stressed spots in the proposals. Main purpose of this thesis is to become essential documentation for decisions and planning actions in the field of watercourses management in the aimed area.
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