116 0

Biodegradability of algal-derived organic matter in a large artificial lake by using stable isotope tracers

Title
Biodegradability of algal-derived organic matter in a large artificial lake by using stable isotope tracers
Author
신경훈
Keywords
Non-biodegradable organic matter; Stable isotope labeling; Phytoplankton; Periphytic algae; Biodegradability; PARAFAC; FLUORESCENCE SPECTROSCOPY; MARINE-PHYTOPLANKTON; EARLY DIAGENESIS; SOIL CARBON; WASTE-WATER; DEGRADATION; BACTERIA; DOM; MINERALIZATION; DECOMPOSITION
Issue Date
2016-01
Publisher
SPRINGER HEIDELBERG
Citation
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, v. 23, No. 9, Page. 8358-8366
Abstract
In order to understand the biodegradability of algal-derived organic matter, biodegradation experiments were conducted with C-13 and N-15-labeled natural phytoplankton and periphytic algal populations in experimental conditions for 60 days. Qualitative changes in the dissolved organic matter were also determined using parallel factor analysis and the stable carbon isotopic composition of the hydrophobic dissolved organic matter through the experimental period. Although algal-derived organic matter is considered to be easily biodegradable, the initial amounts of total organic carbon newly produced by phytoplankton and periphytic algae remained approximately 16 and 44 % after 60 days, respectively, and about 22 and 43 % of newly produced particulate nitrogen remained. Further, the dissolved organic carbon derived from both algal populations increased significantly after 60 days. Although the dissolved organic matter gradually became refractory, the contributions of the algal-derived organic matter to the dissolved organic matter and hydrophobic dissolved organic matter increased. Our laboratory experimental results suggest that algal-derived organic matter produced by phytoplankton and periphytic algae could contribute significantly to the non-biodegradable organic matter through microbial transformations.
URI
https://link.springer.com/article/10.1007/s11356-016-6046-1http://hdl.handle.net/20.500.11754/48451
ISSN
0944-1344; 1614-7499
DOI
10.1007/s11356-016-6046-1
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > ETC
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE