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Wood processing by-products treated with the lignin-based conditioner as mulch for soil protection

    Galia Shulga Affiliation
    ; Talrits Betkers Affiliation
    ; Sanita Vitolina Affiliation
    ; Brigita Neiberte Affiliation
    ; Anrijs Verovkins Affiliation
    ; Olga Anne Affiliation
    ; Dalia Ambrazaitiene Affiliation
    ; Audrone Zukauskaite Affiliation

Abstract

Wood processing by-products such as bark of different wood species and hydrolysis lignin were applied as soil mulch. The lignin-based soil conditioner (LSC) representing a lignin-based polyelectrolyte complex with the different composition (a lignin/polymer mass ratio) was obtained under laboratory conditions and was intended to protect sandy soil from erosion by simultaneous application of a soil conditioner as an adhesive, mulch and plant seeds by hydroseeding. The study revealed the pronounced dependence of the properties of the treated wood-originated mulch on the wood species as well as on the composition, the applied concentration and the application rate of LSC. A comparison of the obtained results showed that the treated hydrolysis lignin was characterised by higher compressive strength, higher water resistance and lower moisture losses from sandy soil for a given LSC composition and application rate than the bark-based mulch. The conditioner concentrations don't have negative impact on the germination of seeds plants of the coastal dune zone.


First published online: 21 Oct 2015

Keyword : bark, hydrolysis lignin, lignin-based soil conditioner, mulch, soil erosion, seed germination

How to Cite
Shulga, G., Betkers, T., Vitolina, S., Neiberte, B., Verovkins, A., Anne, O., Ambrazaitiene, D., & Zukauskaite, A. (2015). Wood processing by-products treated with the lignin-based conditioner as mulch for soil protection. Journal of Environmental Engineering and Landscape Management, 23(4), 279–287. https://doi.org/10.3846/16486897.2015.1018267
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Nov 29, 2015
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