Effect of biochar on the physicochemical properties and nitrogen transport of podzolic soil in a boreal ecosystem

Saha, Ratnajit (2020) Effect of biochar on the physicochemical properties and nitrogen transport of podzolic soil in a boreal ecosystem. Masters thesis, Memorial University of Newfoundland.

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This study is aimed at investigating the effects of biochar on the physicochemical properties and nitrogen transport in podzolic soils. Soil samples were collected from a research site in Pasadena, Newfoundland, Canada. Experimental treatments consisted of three types of soils {top, E-horizon and mixed soil (topsoil 2: E-horizon soil 1)}, two biochar types (granular and powder) and four biochar application rates (0%, 0.5%, 1% and 2% on a weight basis). A total of 210 most relevant and latest research articles were reviewed. Ten important physicochemical parameters of soil were investigated through a total of 72 experimental units and 54 leaching column experiments. Metadata analysis showed that only a few studies were conducted on the boreal podzolic soil. Soil porosity, field capacity and plant available water increased by 2.8%, 10%, and 12.9%, respectively compared to control when the soil was treated with powdered biochar. Nitrate leaching was reduced by 36% compared to control soil. Granular and powdered biochar were found to be hydrophobic and hydrophilic, respectively. A 2% biochar application rate showed greater impact in terms of improving hydraulic properties and reducing nitrogen leaching. The findings would be helpful to improve agricultural practices in the boreal podzolic soil.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/15210
Item ID: 15210
Additional Information: Includes bibliographical references.
Keywords: Granular biochar, Powder biochar, Biochar rates, Topsoil, E-horizon soil, Mixed soil, Physicochemical properties of soil, Nitrogen transportation, Leaching column experiment, Hydraulic properties of soil, Podzolic soil, Boreal ecosystem
Department(s): Science, Faculty of > Environmental Science
Date: August 2020
Date Type: Submission
Digital Object Identifier (DOI): https://doi.org/10.48336/vtae-dv33
Library of Congress Subject Heading: Biochar; Podzol; Soils--Nitrogen content; Forest soils.

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