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

Your account

login

Search

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

Abstract

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.

Citations

  • 7

    CrossRef

  • 0

    Web of Science

  • 9

    Scopus

Authors (9)

Cite as

Full text

download paper
downloaded 47 times
Publication version
Accepted or Published Version
License
Creative Commons: CC-BY open in new tab

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
PeerJ no. 9,
ISSN: 2167-8359
Language:
English
Publication year:
2021
Bibliographic description:
Wielgat P., Kalinowska D., Szymkiewicz A., Zima P., Jaworska-Szulc B., Wojciechowska E., Nawrot N., Matej-Łukowicz K., Dzierzbicka-Glowacka L. A.: Towards a multi-basin SWAT model for the migration of nutrients and pesticides to Puck Bay (Southern Baltic Sea)// PeerJ -Vol. 9, (2021), s.e10938-
DOI:
Digital Object Identifier (open in new tab) 10.7717/peerj.10938
Sources of funding:
Verified by:
Gdańsk University of Technology

seen 137 times

Recommended for you

Model of Nutrient and Pesticide Outflow with Surface Water to Puck Bay (Southern Baltic Sea)

2020

A New Approach for Investigating the Impact of Pesticides and Nutrient Flux from Agricultural Holdings and Land-Use Structures on Baltic Sea Coastal Waters

2019

Integrated information and prediction Web Service WaterPUCK General concept

2018

Seasonal changes of the concentrations of mineral forms of nitrogen and phosphorus in watercourses in the agricultural catchment area (Bay of Puck, Baltic Sea, Poland)

2019
Meta Tags