Jiang, Tao
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences
- Southwest University
Abstract
This study aimed at evaluating the variability of the optical properties including UV-Vis and fluorescence characteristics of dissolved organic matter (DOM) from rainwater in summer and winter seasons. UV-Vis and fluorescence spectroscopy, together with Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model and fire events map, were conducted to characterize DOM and investigate its sources and contributions. The results showed that as compared with aquatic and soil DOM, rainwater DOM showed similar spectral characteristics, suggesting DOM in precipitation was also an important contributor to DOM pool in terrestrial and aquatic systems. The concentrations of DOC in rainwater were 0.88-12.80 mg·L-1, and the CDOM concentrations were 3.17-21.11 mg·L-1. Differences of DOM samples between summer and winter were significant (P
Keywords
Backward trajectory model; Dissolved organic matter; Fluorescence spectra; Natural organic matter; Rainwater; UV-Vis absorption spectra
Published in
Huan Jing Ke Xue
2015, volume: 36, pages: 888-897
Publisher: Science Press
SLU Authors
UKÄ Subject classification
Meteorology and Atmospheric Sciences
Publication identifier
- DOI: https://doi.org/10.13227/j.hjkx.2015.03.018
Permanent link to this page (URI)
https://res.slu.se/id/publ/132070