This page has only limited features, please log in for full access.

Dr. Michał Fiedler
Poznan University of Life Sciences

Basic Info


Research Keywords & Expertise

0 GIS & Environmental Modelling
0 Water & soil quality monitoring
0 Hydrologic and ecosystems monitoring and modeling
0 Hydrology and remote sensing
0 Remote Sensing application in Forestry and Ecology

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

Poznan University of Life Sciences, Faculty of Environmental and Mechanical Engineering

Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 02 June 2021 in Land
Reads 0
Downloads 0

Changes in the environment, aiming at agricultural intensification, progressive urbanisation and other forms of anthropopression, may cause an increase in soil erosion and a resulting increase in the pollution inflow to surface water. At the same time, this results in increased nutrient pollution of bottom sediments. In this study, the concentrations of total nitrogen (TN), total phosphorus (TP), total organic carbon (TOC), calcium (Ca), iron (Fe) and potassium (K) were analysed using bottom sediment samples collected at 39 sites located along the entire length of the Warta River and its tributaries. Agricultural use of land adjacent to rivers was found to significantly degrade sediment quality, while anthropogenic land use (as defined by Corine Land Cover classification—CLC), unlike previous studies, reduces the pollution loads in the bottom sediments. Forest use also contributes to the reduction of the pollution load in sediments. It was found that the significance of the relationship between pollutant concentrations and land use depends on the length of the river–land interface. According to the analyses, the level of correlation between the analysed constituents depends on the use of land adjacent to rivers. The impact of agricultural land use has the strongest effect in the 1 km zone and 5 km in the case of anthropogenic land use. The results showed that the variability of total phosphorus TP concentrations is strongly correlated with the variability of iron concentrations. SPI values indicate that the risk to sediment quality is low due to TOC and Fe concentrations. In contrast, the risk of sediment pollution by TN and TP shows greater differentiation. Although the risk is negligible for 40% of the samples, at the same time, for 33% of the samples, a very high risk of pollution with both TN and TP was found.

ACS Style

Michał Fiedler. The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland. Land 2021, 10, 589 .

AMA Style

Michał Fiedler. The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland. Land. 2021; 10 (6):589.

Chicago/Turabian Style

Michał Fiedler. 2021. "The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland." Land 10, no. 6: 589.

Journal article
Published: 21 March 2021 in Minerals
Reads 0
Downloads 0

Pollution of river bottom sediments with heavy metals (HMs) has emerged as a main environmental issue related to intensive anthropopressure on the water environment. In this context, the risk of harmful effects of the HMs presence in the bottom sediments of the Warta River, the third longest river in Poland, has been assessed. The concentrations of Cr, Ni, Cu, Zn, Cd, and Pb in the river bottom sediments collected at 24 sample collection stations along the whole river length have been measured and analyzed. Moreover, in the GIS environment, a method predicting variation of HMs concentrations along the whole river length, not at particular sites, has been proposed. Analysis of the Warta River bottom sediment pollution with heavy metals in terms of the indices: the Geoaccumulation Index (Igeo), Enrichment Factor (EF), Pollution Load Index (PLI), and Metal Pollution Index (MPI), has proved that, in 2016, the pollution was heavier than in 2017. Assessment of the potential toxic effects of HMs accumulated in bottom sediments, made on the basis of Threshold Effect Concentration (TEC), Midpoint Effect Concentration (MEC), and Probable Effect Concentration (PEC) values, and the Toxic Risk Index (TRI), has shown that the ecological hazard in 2017 was much lower. Cluster analysis revealed two main groups of sample collection stations at which bottom sediments showed similar chemical properties. Changes in classification of particular sample collection stations into the two groups analyzed over a period of two subsequent years indicated that the main impact on the concentrations of HMs could have their point sources in urbanized areas and river fluvial process.

ACS Style

Joanna Jaskuła; Mariusz Sojka; Michał Fiedler; Rafał Wróżyński. Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland. Minerals 2021, 11, 327 .

AMA Style

Joanna Jaskuła, Mariusz Sojka, Michał Fiedler, Rafał Wróżyński. Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland. Minerals. 2021; 11 (3):327.

Chicago/Turabian Style

Joanna Jaskuła; Mariusz Sojka; Michał Fiedler; Rafał Wróżyński. 2021. "Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland." Minerals 11, no. 3: 327.

Journal article
Published: 01 January 2018 in Studia i Prace WNEiZ
Reads 0
Downloads 0
ACS Style

Magdalena Antkowiak; Adam Zydroń; Mateusz Iwiński; Michał Fiedler. The impact of investment of Volkswagen on the socio-economic development of wrzesiński district. Studia i Prace WNEiZ 2018, 51, 33 -45.

AMA Style

Magdalena Antkowiak, Adam Zydroń, Mateusz Iwiński, Michał Fiedler. The impact of investment of Volkswagen on the socio-economic development of wrzesiński district. Studia i Prace WNEiZ. 2018; 51 ():33-45.

Chicago/Turabian Style

Magdalena Antkowiak; Adam Zydroń; Mateusz Iwiński; Michał Fiedler. 2018. "The impact of investment of Volkswagen on the socio-economic development of wrzesiński district." Studia i Prace WNEiZ 51, no. : 33-45.

Journal article
Published: 01 November 2017 in Journal of Ecological Engineering
Reads 0
Downloads 0

Small midfield ponds have important functions in hydrology and ecology of hummocky areas of Poland. Because of their sensitivity to meteorological conditions they undergo changes in number and hydroperiod as a result of climate changes and agriculture pressure. Accurate estimate of the pond area...

ACS Style

Michał Fiedler; Magdalena Antkowiak; Anna Oliskiewicz-Krzywicka; Anna Zbierska. Model for the Volume-Area-Depth Relations of Midfield Ponds using LiDAR. Journal of Ecological Engineering 2017, 18, 36 -42.

AMA Style

Michał Fiedler, Magdalena Antkowiak, Anna Oliskiewicz-Krzywicka, Anna Zbierska. Model for the Volume-Area-Depth Relations of Midfield Ponds using LiDAR. Journal of Ecological Engineering. 2017; 18 (6):36-42.

Chicago/Turabian Style

Michał Fiedler; Magdalena Antkowiak; Anna Oliskiewicz-Krzywicka; Anna Zbierska. 2017. "Model for the Volume-Area-Depth Relations of Midfield Ponds using LiDAR." Journal of Ecological Engineering 18, no. 6: 36-42.

Journal article
Published: 01 January 2017 in Studia i Prace WNEiZ
Reads 0
Downloads 0
ACS Style

Piotr Szczepański; Michał Fiedler; Adam Zydroń. Evaluation of the sustainability of selected communes in Poznań agglomeration using the analytic hierarchy process. Studia i Prace WNEiZ 2017, 47, 109 -121.

AMA Style

Piotr Szczepański, Michał Fiedler, Adam Zydroń. Evaluation of the sustainability of selected communes in Poznań agglomeration using the analytic hierarchy process. Studia i Prace WNEiZ. 2017; 47 ():109-121.

Chicago/Turabian Style

Piotr Szczepański; Michał Fiedler; Adam Zydroń. 2017. "Evaluation of the sustainability of selected communes in Poznań agglomeration using the analytic hierarchy process." Studia i Prace WNEiZ 47, no. : 109-121.

Journal article
Published: 30 June 2015 in Nauka Przyroda Technologie
Reads 0
Downloads 0
ACS Style

Piotr Stachowski; Kształtowania Środowiska i Geodezji Instytut Melioracji; Daniel Liberacki; Michał Fiedler. Assessment of the increase in retention in the forest habitats covered by the Natura 2000 programme. Nauka Przyroda Technologie 2015, 9, 1 .

AMA Style

Piotr Stachowski, Kształtowania Środowiska i Geodezji Instytut Melioracji, Daniel Liberacki, Michał Fiedler. Assessment of the increase in retention in the forest habitats covered by the Natura 2000 programme. Nauka Przyroda Technologie. 2015; 9 (2):1.

Chicago/Turabian Style

Piotr Stachowski; Kształtowania Środowiska i Geodezji Instytut Melioracji; Daniel Liberacki; Michał Fiedler. 2015. "Assessment of the increase in retention in the forest habitats covered by the Natura 2000 programme." Nauka Przyroda Technologie 9, no. 2: 1.