The Role of Lakes in Shaping the Runoff of Lakeland Rivers

Bajkiewicz-Grabowska, Elżbieta; Golus, Włodzimierz; Markowski, Maciej; Kwidzińska, Monika

doi:10.1007/978-3-030-12123-5_9

Cited by 9 publications

(4 citation statements)

References 1 publication

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“…SSL play a role in regional carbon processing, with burial in sediments and the emission of natural greenhouse gases [12], and are useful for carbon sequestration [13]. They retain part of watershed nutrients and contaminants [14,15], and influence river hydrology and hydromorphology [16]. Despite their economic importance and conservation value, SSL are largely neglected by the scientific community [17,18].…”

Section: Introductionmentioning

confidence: 99%

Principal Determinants of Aquatic Macrophyte Communities in Least-Impacted Small Shallow Lakes in France

Labat

Thiébaut

Piscart

2021

Water

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Small shallow lakes (SSL) support exceptionally high and original biodiversity, providing numerous ecosystem services. Their small size makes them especially sensitive to anthropic activities, which cause a shift to dysfunctional turbid states and induce loss of services and biodiversity. In this study we investigated the relationships between environmental factors and macrophyte communities. Macrophytes play a crucial role in maintaining functional clear states. Better understanding the factors determining the composition and richness of aquatic plant communities in least-impacted conditions may be useful to protect these shallow lakes. We inventoried macrophyte communities and collected chemical, climatic, and morphological data from 89 least-impacted SSL widely distributed in France. SSL were sampled across four climatic ecoregions, various geologies, and elevations. Hierarchical cluster analysis showed a clear separation of four macrophyte assemblages strongly associated with mineralization. Determinant factors identified by distance-based redundancy analysis (db-RDA) analysis were, in order of importance, geology, distance from source (DIS, a proxy for connectivity with river hydrosystems), surface area, climate, and hydroperiod (water permanency). Surprisingly, at a country-wide scale, climate and hydroperiod filter macrophyte composition weakly. Geology and DIS are the major determinants of community composition, whereas surface area determines floristic richness. DIS was identified as a determinant in freshwater lentic ecosystems for the first time.

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Section: Introductionmentioning

confidence: 99%

Principal Determinants of Aquatic Macrophyte Communities in Least-Impacted Small Shallow Lakes in France

Labat

Thiébaut

Piscart

2021

Water

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“…For the engineering-based actions, it seems that lakeland areas, where the network of outflow is formed of polygenetic fluvial-lacustrine systems, are particularly suited to the creation of small retention systems. However, the fact that many outflow systems of young glacial areas are in hydraulic connection with groundwaters of deeper circulation systems (via deep erosional valleys or deep lakes) [53] makes these systems highly sensitive to an increase in evaporation (and in particular to high evaporation in summer months). Due to the high inertia of groundwater circulation systems, the losses of water resources in a catchment area may only be observed after a delay of up to several decades, and may further intensify outflow deficits.…”

Section: Increase In Evaporation In North-western Poland In Light Of mentioning

confidence: 99%

Changes in Potential Evaporation in the Years 1952–2018 in North-Western Poland in Terms of the Impact of Climatic Changes on Hydrological and Hydrochemical Conditions

Okoniewska

Szumińska

2020

Water

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The paper analyses changes in potential evaporation E0 (mm) in north-western Poland in the years 1952–2018. E0 (mm) has been calculated according to Ivanov’s formula based on the monthly values of air temperature (t, °C) and relative air humidity (f, %) for six weather stations of the Institute of Meteorology and Water Management. The data were collected using the Statistica software ver. 13 and the QGIS software ver. 3.80. The results indicate statistically significant trends in the increase of E0 during the period 1952–2018, and that it is particularly high during the spring and summer months, which should be associated with a statistically significant increase in air temperature and a decrease in relative humidity at all examined stations. The results also indicate an exceptionally high increase in evaporation since the end of the 20th century and in the 21st century, which reflects a potentially higher risk of permanent changes in hydrological conditions. The research results point to the major role of climatic factors in the often-dramatic decreases in water resources observed in the 21st century, particularly in lakes and small watercourses. The progressing reduction of water resources may cause permanent changes in physical and chemical conditions in waterbodies.

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“…Reservoirs and rivers located in lowland areas, whose catchment areas are intensively used for agriculture, are particularly exposed to the eutrophication process. At the same time, these areas are dominated by river-lake systems (Saunders and Kalff, 2001;Foley et al, 2005;Dabrowska, 2008;Woli et al, 2008;Varanka and Luoto, 2012;Bajkiewicz-Grabowska et al, 2020). According to Kuriata-Potasznik (2018), in these systems, rivers act as transporters of nutrients while lakes serve as temporary retention sites.…”

Section: Introductionmentioning

confidence: 99%

Variability of Nitrogen and Phosphorus Content and Their Forms in Waters of a River-Lake System

Janicka

Kanclerz

Wiatrowska

et al. 2022

Front. Environ. Sci.

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River-lake systems in Central Europe represent the majority of surface water system forms. In these systems lakes play an important role in river water quality. Published reports on the quality of surface waters in Europe indicate progressive deterioration of their quality, resulting mainly from increasing eutrophication. This study analyzed the content of two biogenic elements—nitrogen and phosphorus—and their mineral forms in the Głuszynka river, representative for the river-lake systems of Central Europe. The research was conducted in the hydrological years 2016–2018. The ecological status of the Głuszynka river, due to the “poor” status of both biological elements and physicochemical elements (content of phosphorus and nitrogen compounds), was classified as “poor.” In the period analyzed an increase in the content of nitrogen compounds was recorded in the hydrological year 2018. However, during the growing period a significant decrease in the content of total and nitrate nitrogen was observed, which was related to the activity of primary producers. For phosphorus compounds a slight increase of their content was observed during this period. This was associated with high tourist and recreational pressure on the analyzed system. Analyzing the spatial variability of biogenic compounds it was observed that along the course of the river the content of nitrite and nitrate nitrogen as well as total nitrogen increased at successive sampling points. An opposite trend of change along the river course was observed for phosphorus compounds (content of P-PO4 and total phosphate decreased by 14 and 15.9%, respectively). Statistical analyses carried out highlighted the relationship between water quality and land use in the direct catchments of lakes included in the river-lake network. Arable land was associated with higher the content of orthophosphorus phosphate, grassland total nitrogen, nitrite and nitrate nitrogen, while urbanization was strongly associated with ammonium nitrogen.

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The Role of Lakes in Shaping the Runoff of Lakeland Rivers

Cited by 9 publications

References 1 publication

Principal Determinants of Aquatic Macrophyte Communities in Least-Impacted Small Shallow Lakes in France

Principal Determinants of Aquatic Macrophyte Communities in Least-Impacted Small Shallow Lakes in France

Changes in Potential Evaporation in the Years 1952–2018 in North-Western Poland in Terms of the Impact of Climatic Changes on Hydrological and Hydrochemical Conditions

Variability of Nitrogen and Phosphorus Content and Their Forms in Waters of a River-Lake System

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