The effect of tree age, daily sap volume and date of sap collection on the content of minerals and heavy metals in silver birch (Betula pendula Roth) tree sap

• Paweł Staniszewski ,

  Contributed equally to this work with: Paweł Staniszewski, Maciej Bilek, Wojciech Szwerc, Robert Tomusiak

  Roles Conceptualization, Data curation, Methodology, Writing – original draft

  Affiliation Department of Forest Utilization, Institute of Forest Sciences, Warsaw University of Life Sciences–SGGW, Warsaw, Poland

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• Maciej Bilek ,

  Contributed equally to this work with: Paweł Staniszewski, Maciej Bilek, Wojciech Szwerc, Robert Tomusiak

  Roles Conceptualization, Investigation, Methodology, Writing – original draft

  Affiliation Department of Agroecology, Institute of Agricultural Sciences, Land Management and Environmental Protection, University of Rzeszów, Rzeszów, Poland

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• Wojciech Szwerc ,

  Contributed equally to this work with: Paweł Staniszewski, Maciej Bilek, Wojciech Szwerc, Robert Tomusiak

  Roles Formal analysis

  Affiliation Chemistry Department of Analytical Chemistry, Medical University of Lublin, Lublin, Poland

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• Robert Tomusiak ,

  Contributed equally to this work with: Paweł Staniszewski, Maciej Bilek, Wojciech Szwerc, Robert Tomusiak

  Roles Formal analysis, Visualization, Writing – original draft

  Affiliation Department of Forest Management Planning, Dendrometry and Forest Economics, Institute of Forest Sciences, Warsaw University of Life Sciences–SGGW, Warsaw, Poland

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• Paweł Osiak ,

  Roles Investigation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Forestry Students’ Scientific Association, Warsaw University of Life Sciences–SGGW, Warsaw, Poland

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• Ryszard Kocjan ,

  Roles Investigation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Chemistry Department of Analytical Chemistry, Medical University of Lublin, Lublin, Poland

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• Tadeusz Moskalik

  Roles Writing – review & editing

  * E-mail: tadeusz.moskalik@wl.sggw.pl

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Forest Utilization, Institute of Forest Sciences, Warsaw University of Life Sciences–SGGW, Warsaw, Poland

  https://orcid.org/0000-0003-1215-5272

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