Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Børresen, Trond"

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Effect of biochar on crust formation, penetration resistance and hydraulic properties of two coarse-textured tropical soils

Obia, Alfred; Børresen, Trond; Martinsen, Vegard; Cornelissen, Gerard; Mulder, Jan (Peer reviewed; Journal article, 2017)

Biochar (BC) has been reported to improve a number of soil structural and hydraulic properties but detailed studies are scant on how BC affects crust formation, penetration resistance, water repellency and saturated hydraulic ...
Vertical and lateral transport of biochar in light-textured tropical soils

Obia, Alfred; Børresen, Trond; Martinsen, Vegard; Cornelissen, Gerard; Mulder, Jan (Peer reviewed; Journal article, 2016)

Field experiments were conducted in Arenosols (loamy fine sand) and Acrisols (sandy loam) in Zambia to quantify vertical and lateral transport of biochar (BC) using the BC and soil 13C isotope signatures and total organic ...