EXPERIMENTS INVESTIGATING NA-CA EXCHANGE ON PEAT TO UNDERSTAND ROAD SALT RETENTION IN A CALCAREOUS FEN

Abstract Occurrence of increasing chloride concentrations in urban streams of cold climates, mainly due to road salt application, has raised concerns on its adverse effects on aquatic and terrestrial ecosystems. Therefore, there is a need for a better understanding of processes associated with road salt application and subsequent discharge into the environment in order to develop management practices to minimize detrimental effects of chlorides. The chloride mass analysis for the Highland Creek watershed based on four years of hourly monitoring data indicates that approximately 60% of the chlorides applied on the watershed enter streams prior to subsequent salting period, 85% of which occurs during the period between November and March. Contribution of private de-icing operations on chloride mass input within Highland Creek watershed was estimated to be approximately 38%, indicating its significance in overall chloride mass balance. Salt application rates, as well as chloride output in the streams, vary spatially based on land use, influencing chloride concentrations in surface waters. The estimated groundwater chloride concentration of 275 mg/L indicates that some aquatic organisms in Highland Creek would potentially be at risk even outside the winter period under dry weather flow conditions.

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THE INFLUENCE OF ROAD SALT DEICERS ON URBAN KETTLE LAKES

10.1130/abs/2016am-276940 ◽

2016 ◽

Author(s):

Carla M. Koretsky ◽

◽

Ryan Sibert ◽

Davina A. Wyman ◽

Danielle Dupuis

Keyword(s):

Road Salt

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SEASONAL VARIATION OF CHLORIDE INPUTS FROM ROAD SALT APPLICATION IN A MIXED URBAN/AGRICULTURAL WATERSHED IN CENTRAL ILLINOIS

10.1130/abs/2016am-287247 ◽

2016 ◽

Cited By ~ 1

Author(s):

Lucas P. Chabela ◽

◽

Eric W. Peterson ◽

Joseph Miller

Keyword(s):

Seasonal Variation ◽

Road Salt ◽

Agricultural Watershed ◽

Central Illinois

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INVESTIGATING ROAD SALT CONTAMINATION USING GEOPHYSICS AND GEOCHEMISTRY

10.1130/abs/2016ne-272828 ◽

2016 ◽

Author(s):

Todd W. Rayne ◽

◽

Nora C. Boylan ◽

Mary Margaret Allen ◽

Julianna S. Horgan

Keyword(s):

Road Salt

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Characteristics of Liparis loeselii (L.) Rich. populations in selected Natura 2000 areas in eastern Poland

Folia Geobotanica ◽

10.1007/s12224-020-09371-7 ◽

2020 ◽

Vol 55 (3) ◽

pp. 151-162

Author(s):

Danuta Urban ◽

Joanna Sender ◽

Ewelina Tokarz ◽

Andrzej Różycki

Keyword(s):

Natura 2000 ◽

Total Carbon ◽

Habitat Conditions ◽

Total Carbon Content ◽

Poor Fen ◽

Calcareous Fen ◽

Liparis Loeselii ◽

The Individual ◽

Insight Into

AbstractIn view of the sensitivity of Liparis loeselii to changes in habitat conditions, we carried out a study with the aim to monitor population numbers, identify the individual features of the Liparis loeselii population, analyse habitat conditions, identify threats and propose conservation measures to preserve the species. The investigations were conducted in seven unmanaged objects located in three Natura 2000 areas in eastern Poland. The results of this study provide a new insight into Liparis loeselii ecology. The analysed populations inhabited some habitat types: extremely poor fen, transitional mire, rich fen, calcareous fen, spring-fed fen. The content of nutrients was similar in all the habitats. A CCA analysis revealed that the total carbon content, pH, and redox potential of the substrate determine differences between the habitats analysed. Juvenile individuals represented a maximum of 12% of the analysed populations and were the least abundant group of these plants. The flowering was primarily influenced by hydrological conditions. Based on the long-term observations reported in this article, it can be assumed that the species stands a chance of surviving at the localities analysed, provided that the habitat conditions do not change dramatically.

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