Evaluation of the Influence of Farming Practices and Land Use on Groundwater Resources in a Coastal Multi-Aquifer System in Puck Region (Northern Poland)

Szymkiewicz, Adam; Potrykus, Dawid; Jaworska-Szulc, Beata; Gumuła-Kawęcka, Anna; Pruszkowska-Caceres, Małgorzata; Dzierzbicka-Głowacka, Lidia

doi:10.3390/w12041042

Cited by 16 publications

(15 citation statements)

References 52 publications

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“…Virtasalo et al (2019) observed the melted spots on the sea ice along the shoreline during spring, which could be caused by the discharge of warmer groundwater (average temperature of 7°C). A similar situation was described by Szymkiewicz et al (2020), where the rate of SGD varies seasonally and in relation to recharge, with peaks in late winter to early spring. In this study, the measurement of EC and temperature at the sea bottom along the shoreline was carried out in summer when the groundwater level and recharge are low.…”

Section: Discussionsupporting

confidence: 67%

Geological and groundwater flow model of a submarine groundwater discharge site at Hanko (Finland), northern Baltic Sea

et al. 2021

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Three-dimensional geological and groundwater flow models of a submarine groundwater discharge (SGD) site at Hanko (Finland), in the northern Baltic Sea, have been developed to provide a geological framework and a tool for the estimation of SGD rates into the coastal sea. The dataset used consists of gravimetric, ground-penetrating radar and shallow seismic surveys, drill logs, groundwater level monitoring data, field observations, and a LiDAR digital elevation model. The geological model is constrained by the local geometry of late Pleistocene and Holocene deposits, including till, glacial coarse-grained and fine-grained sediments, post-glacial mud, and coarse-grained littoral and aeolian deposits. The coarse-grained aquifer sediments form a shallow shore platform that extends approximately 100–250 m offshore, where the unit slopes steeply seawards and becomes covered by glacial and post-glacial muds. Groundwater flow preferentially takes place in channel-fill outwash coarse-grained sediments and sand and gravel interbeds that provide conduits of higher hydraulic conductivity, and have led to the formation of pockmarks on the seafloor in areas of thin or absent mud cover. The groundwater flow model estimated the average SGD rate per square meter of the seafloor at 0.22 cm day−1 in autumn 2017. The average SGD rate increased to 0.28 cm day−1 as a response to an approximately 30% increase in recharge in spring 2020. Sensitivity analysis shows that recharge has a larger influence on SGD rate compared with aquifer hydraulic conductivity and the seafloor conductance. An increase in recharge in this region will cause more SGD into the Baltic Sea.

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Section: Discussionsupporting

confidence: 67%

Geological and groundwater flow model of a submarine groundwater discharge site at Hanko (Finland), northern Baltic Sea

et al. 2021

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“…Due to the lack of sufficient data on stream discharge, it was decided to perform calibration by a manual trial-and-error procedure ( Szymkiewicz et al, 2020 ). For calibration, meteorological data from the years 2000–2009 were used.…”

Section: Methodsmentioning

confidence: 99%

Towards a multi-basin SWAT model for the migration of nutrients and pesticides to Puck Bay (Southern Baltic Sea)

Wielgat

Kalinowska

Szymkiewicz

et al. 2021

PeerJ

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Background This paper analyzes the impact of changes in fertilization on crop yields and the runoff of nutrients from a small agricultural catchment (176 km2) to a shallow bay, using the SWAT model. Puck Bay is part of the Gulf of Gdansk and belongs to the Baltic Sea. The whole area of Puck Bay (364 km2) is protected (Natura 2000) yet despite this it suffers from eutrophication problems due to the relatively minimal depth and difficult water exchange. Methods The paper presents a comparison of the calculated yields and the runoff of nutrients and pesticides in the SWAT model, for a small agricultural coastal catchment. Calculations were made for 13 crop scenarios with weather data from 2011 to 2019. For each crop, an agriculture calendar was made. Two variants of fertilization were considered (autofertilization mode and according to the calendar). The nutrient runoff was calculated depending on the adopted scenario. In addition, the fate of selected pesticides was simulated. Results Depending on the crop, the annual load of NO3into the stream ranged from 0.74 to 3.65 kg ha−1. The annual load of organic phosphorous into the stream was between 0.686 and 3.64 kg ha−1. This is lower than in the majority of EU or Baltic countries. The surface runoff of dissolved Glyphosate was equal to 286 mg ha−1. The annual loads of nutrients from the catchment area are equivalent in both fertilization modes. Regardless of the selected fertilization mode, in addition to the dosage, the form of nutrients is important for the model.

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“…The results quoted here refer to the current conditions of land use and agricultural practices as obtained from the survey of Puck area. Modelling studies showed that changes in land use and agricultural practices have considerable influence on groundwater flow rates and nitrate loads at the land-sea interface [6].…”

Section: Groundwater Dischargementioning

confidence: 99%

“…• two calculators for farms in the Puck Commune as an interactive applications [4,5], • a numerical model of groundwater flow based on Modflow [6], • a comprehensive model of surface water runoff based on Soil & Water Assessment Tool (SWAT) [7], • a three-dimensional numerical model of the Puck Bay ecosystem consisting of a hydrodynamic [1] and biochemical part with a nutrient spread module (this paper).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Impact of Chemical Loads from Agriculture Holdings on the Puck Bay Environment with the High-Resolution Ecosystem Model of the Puck Bay, Southern Baltic Sea

Dybowski

Janecki

Nowicki

et al. 2020

Water

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This paper describes the ecohydrodynamic predictive model EcoPuckBay—the ecosystem part—for assessing the state of the Puck Bay coastal environment and its ecosystem. We coupled the EcoPuckBay model with the land water flow models (Soil and Water Assessment Tool (SWAT) for surface water and Modflow for groundwater). To evaluate the quality of the results obtained from the EcoPuckBay model, a set of basic statistical measures for dissolved oxygen, chlorophyll-a, nitrates, and phosphates were calculated, such as mean, Pearson correlation coefficient (r), root-mean-square-error (RMSE), and standard deviation (STD). The analysis presented in this paper shows that the EcoPuckBay model produces reliable results. In addition, we developed a nutrient spread module to show the impact of agricultural activity on the waters of the Puck Bay. The EcoPuckBay model is also available in operational mode where users can access 60-h forecasts via the website of the WaterPUCK Project through the “Products” tab.

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Evaluation of the Influence of Farming Practices and Land Use on Groundwater Resources in a Coastal Multi-Aquifer System in Puck Region (Northern Poland)

Cited by 16 publications

References 52 publications

Geological and groundwater flow model of a submarine groundwater discharge site at Hanko (Finland), northern Baltic Sea

Geological and groundwater flow model of a submarine groundwater discharge site at Hanko (Finland), northern Baltic Sea

Towards a multi-basin SWAT model for the migration of nutrients and pesticides to Puck Bay (Southern Baltic Sea)

Assessing the Impact of Chemical Loads from Agriculture Holdings on the Puck Bay Environment with the High-Resolution Ecosystem Model of the Puck Bay, Southern Baltic Sea

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