HSR Vol.13（2017）
- Transformation of soil fulvic acid by immobilized laccase from Trametes villosa：Y. Yanagi et al.(p5-12)
- Carbon content and macroelements content in Cryosols : L. Pospisilova et al.(p13-18)
- Changes in several properties of humic acids after application of exogenous organic materials : L. Pospisilova et al.(p19-24)
- Quantification of humic substances fractions insoils under different tree stands plantation in tropical rain forest, Nigeria: S.I. Adebola et al.(p25-30)