Open AccessWOOD PROCESSING BY-PRODUCTS TREATED WITH THE LIGNIN-BASED CONDITIONER AS MULCH FOR SOIL PROTECTION
Author(s) -
Galia Shulga,
Tālrīts Betkers,
Sanita Vītoliņa,
Brigita Neiberte,
Anrijs Verovkins,
Olga Anne,
Dalia Ambrazaitienė,
Audronė Žukauskaitė
Publication year - 2015
Publication title -
journal of environmental engineering and landscape management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.514
H-Index - 28
eISSN - 1822-4199
pISSN - 1648-6897
DOI - 10.3846/16486897.2015.1018267
Subject(s) - mulch , lignin , bark (sound) , water content , soil conditioner , moisture , hydrolysis , composition (language) , chemistry , pulp and paper industry , environmental science , soil water , agronomy , soil science , biology , ecology , geology , organic chemistry , linguistics , philosophy , geotechnical engineering , engineering
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.