Diversity of the Tsi Indicators of the Middle-Forest Small Retention Reservoir

Szczykowska, Joanna; Siemieniuk, Anna; Wiater, J.

doi:10.12911/22998993/60454

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…The mean value of the TSI points to the mesotrophy of Niwa I and the eutrophy of Niwa II, which, however, should be discussed in the context of the differences in partial TSI indices carrying additional valuable information on the functioning of the ecosystem in terms of the conditions of the primary production [Szczykowska et al 2015]. These variations may point to the early stage of the reservoir development and the role, especially in Niwa II, of the abiotic factors in restraining the phytoplankton development.…”

Section: Discussionmentioning

confidence: 99%

Trophic State Indexes and Phytoplankton in the Trophic Status Assessment of Waters of a Small Retention Reservoir at an Early Stage of Operation

2017

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This paper will focus on determining the trophic status of the two basins of the Niwa Reservoir -Niwa I and Niwa II (Sawin commune, Lubelskie Province, SE Poland) at the sixth year of operation, by using partial TSI indexes -TSI(SD), TSI(TP), TSI(chl-a), as well as qualitative and quantitative structures of phytoplankton. As a supplementary, index TSI(TOC) was employed. We show that the phytoplankton abundance, as well as TSI(chl-a) and TSI(TP) were relatively low and typical for mesotrophic waters (with the exception of July TSI(TP) values for the Niwa II basin), although the evaluation of trophy based on other partial TSI indexes -TSI(SD), TSI(TOC) pointed to a eutrophic or even a hypertrophic water characteristic. The obtained results were discussed in detail and referenced to other, non-nutrient related trophy factors: morphometric features and geology of the basins, as well as the physicochemical properties of its water.

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Section: Discussionmentioning

confidence: 99%

Trophic State Indexes and Phytoplankton in the Trophic Status Assessment of Waters of a Small Retention Reservoir at an Early Stage of Operation

2017

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“…If the capacity of the reservoir is larger than 5 million m3, then the retention could be acknowledged as large. A classification of the various forms of finer reservoirs is presented in Figure 4, including all the micro and small reservoirs, which usually have a positive or minimal negative impact on the environment (Mioduszewski 2003;Szczykowska et al 2015), while having no or little impact on the amount of power produced by an existing or planned hydroelectric plant. Worldwide, hydropower accounts for about 16% of the electricity production (Anderson et al 2014), which is more than in the case of any other renewable source.…”

Section: Introductionmentioning

confidence: 99%

Hydroelectric Power Plants and River Morphodynamic Processes

Kiraga¹

2021

J. Ecol. Eng.

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Hydropower is one of the renewable energy sources. Hydropower plants generate electricity using the kinetic energy of flowing water. Although hydroelectric power plants are not as prominent as solar or wind farms, it should be noted that they generate the most significant amount of the power. They are also the most technically advanced projects. Power plants are built with different technical parameters of turbines, different sizes of dams or weirs and different ways of exploiting the energy of flowing water. A common feature, however, is the significant impact of hydroelectric power plants on the functioning of adjacent regions. The paper divides this impact into economic and local development, landscape, and ecological functions, emphasizing the interaction of these influences. The paper discusses the hydromorphological changes taking place in the immediate vicinity of the structure, as a consequence of channel development. The processes of aggradation and degradation of the channel are the answer to hydrodynamic equilibrium loss. These hydrodynamic processes are associated with the subsequent ecological response of the habitat. The most important of these include the dynamic equilibrium loss by the river and the subsequent morphological parameters striving to restore it according to Lane's relation, known as the most important principle in the fluvial morphology science. The impact of the hydropower plant on the fluvial environment results, first of all, from a significant environmental impact of the damming of the river itself. If the structure is correctly designed, maintained, and operated, it allows controlling the water conditions upstream and downstream with simultaneous energy production. Due to several geometric, hydraulic, and granulometric changes, and further, the resultant economic, landscape, and natural changes that significantly affect the operation of a region, these should be considered as early as the design stage and should be an integral part of any hydroelectric project.

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Dynamics of Nitrogen and Phosphorus Forms Content in Dojlidy Retention Reservoire

2017

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The Dojlidy Ponds, which include Dojlidy water dam, are located within Bialystok city limits in Podlasie area, Poland. The reservoir with a water surface of 34 ha and average depth of 1.75 m was constructed in 1962 as a result of Biala River damming. The researches were conducted in July, October and December 2014 as well as in March 2015. Each time five test samples were collected from spots located along the reservoir. Water samples were tested for the presence of ammonia nitrogen, nitrite nitrogen, organic nitrogen, phosphates and organic phosphorus. The values of nutrient indicators exhibited high variability during the study period. The highest concentration of nitrite and nitrate nitrogen were observed in July, while the lowest in Octobernitrite nitrogen, and in December -nitrate nitrogen. Different situation was observed after the analysis of phosphorus forms -the highest concentrations of organic phosphorus and phosphates were observed in December and the lowest in July. Relatively high concentrations of nitrogen and phosphorus forms identified in water samples were most likely caused by tributaries, due to the pollution from the reservoir catchment. Technical parameters of the object and location of the reservoir have undoubtedly an impact on the tested parameters contents.

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Diversity of the Tsi Indicators of the Middle-Forest Small Retention Reservoir

Cited by 4 publications

References 5 publications

Trophic State Indexes and Phytoplankton in the Trophic Status Assessment of Waters of a Small Retention Reservoir at an Early Stage of Operation

Trophic State Indexes and Phytoplankton in the Trophic Status Assessment of Waters of a Small Retention Reservoir at an Early Stage of Operation

Hydroelectric Power Plants and River Morphodynamic Processes

Dynamics of Nitrogen and Phosphorus Forms Content in Dojlidy Retention Reservoire

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