Fluorescent characteristics of dissolved organic matter released from biochar and paddy soil incorporated with biochar.

ABSTRACT: Dissolved organic matter (DOM) plays a critical part in many processes of the ecological environment due to its mobility and reactivity in the soil and water interface. In the presented study, excitation-emission matrices (EEM) coupled with parallel factor analyses (PARAFAC) and UV-visible spectroscopy were introduced to investigate the variation of DOM derived from wheat straw biochar produced at different pyrolysis temperatures (300 °C, 500 °C and 700 °C), qualitatively and quantitatively. The dissolved organic matter (DOM) content of 700 °C biochar achieved a maximum of 1.45 g kg^-1, while a minimum of 0.61 g kg^-1 was found at 500 °C. Components consisting of protein and tryptophan-like, UVA humic acid-like and UVC humic acid-like substances were extracted from the

SUBMITTER: Gao J 

PROVIDER: S-EPMC9049491 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature