Results 21 to 30 of about 10,511 (238)

Distribution, spectral characteristics, and seasonal variation of dissolved organic matter in the northern Beibu Gulf, South China Sea

Frontiers in Marine Science, 2022
Dissolved organic matter (DOM) in the land–ocean interface plays a critical role in the global carbon cycle, yet its dynamic is not well understood. Dissolved organic carbon (DOC) in the northern Beibu Gulf was measured seasonally from April 2020 to ...
Zuhao Zhu, Zuhao Zhu, Huihua Wei, Yao Guan, Yao Guan, Li Zhang, Li Zhang, Renming Jia, Renming Jia, Pengfei Sun, Pengfei Sun, Yang Yang, Yang Yang, Zhen Zhang, Zhen Zhang, Qiufeng Zhang   +15 more
doaj   +1 more source

The importance of the dissolved organic matter pool for the carbon sequestration potential of artificial upwelling

Frontiers in Marine Science, 2022
In the face of climate change there is a need to reduce atmospheric CO2 concentrations. Artificial upwelling of nutrient-rich deep waters has been proposed as a method to enhance the biological carbon pump in oligotrophic oceanic regions in order to ...
Markel Gómez-Letona, Marta Sebastián, Isabel Baños, María Fernanda Montero, Clàudia Pérez Barrancos, Clàudia Pérez Barrancos, Moritz Baumann, Ulf Riebesell, Javier Arístegui   +8 more
doaj   +1 more source

In situ fluorescence measurements of dissolved organic matter: A review [PDF]

Science of The Total Environment, 2020
There is a need for an inexpensive, reliable and fast monitoring tool to detect contaminants in a short time, for quick mitigation of pollution sources and site remediation, and for characterization of natural dissolved organic matter (DOM). Fluorescence spectroscopy has proven to be an excellent technique in quantifying aquatic DOM, from autochthonous,
Elfrida M. Carstea, Cristina L. Popa, Andy Baker, John Bridgeman   +3 more
openaire   +4 more sources

Sources, spectral characteristics, and fluxes of dissolved organic matter in coastal groundwater and river water in western Guangdong, China

Frontiers in Environmental Science, 2022
Groundwater discharge and river runoff are two important ways for allochthonous dissolved organic matter (DOM) to enter the ocean, but they vary spatially.
Chao Wang, Chao Wang, Chao Wang, Chao Wang, Xuanyu Hu, Yilin Liu, Guangzhe Jin, Guangzhe Jin, Guangzhe Jin   +8 more
doaj   +1 more source

Effect of Pyrolysis Temperature on the Characterisation of Dissolved Organic Matter from Pyroligneous Acid

Molecules, 2021
Dissolved organic matter (DOM) greatly influences the transformation of nutrients and pollutants in the environment. To investigate the effects of pyrolysis temperatures on the composition and evolution of pyroligneous acid (PA)-derived DOM, DOM ...
Genmao Guo, Qingqing Wang, Qing Huang, Qionglin Fu, Yin Liu, Junfeng Wang, Shan Hu, Ondřej Mašek, Luya Wang, Ju Zhang   +9 more
doaj   +1 more source

Origin of dissolved organic carbon under phosphorus-limited coastal-bay conditions revealed by fluorescent dissolved organic matter

Frontiers in Marine Science, 2022
To determine the origins of dissolved organic carbon (DOC) in a bay of volcanic Jeju Island, where the discharge of fresh groundwater (FGW) is dominant, we measured fluorescent dissolved organic matter (FDOM) and implemented a parallel factor analysis ...
Jeonghyun Kim, Byung-Chan Song, Byung-Chan Song, Tae-Hoon Kim   +3 more
doaj   +1 more source

Solid phase extraction of ocean dissolved organic matter with PPL cartridges: efficiency and selectivity

Frontiers in Marine Science, 2023
Our current knowledge of the chemical composition of ocean dissolved organic matter (DOM) is limited, mainly because of its extreme molecular diversity, low concentration of individual compounds and the elevated ionic strength of ocean waters.
E. Jerusalén-Lleó, E. Jerusalén-Lleó, M. Nieto-Cid, M. Nieto-Cid, I. Fuentes-Santos, Thorsten Dittmar, Thorsten Dittmar, X. A. Álvarez-Salgado   +7 more
doaj   +1 more source

Characteristics of Dissolved Organic Matter in a Semi-closed Bay in Summer: Insights from Stable Isotope and Optical Analyses

Frontiers in Marine Science, 2022
Dissolved organic matter (DOM) serves as the most active and sensitive organic component in the bay, and its biogeochemical characteristics and reactivity are affected by the properties of terrestrial and marine substances significantly.
Yafeng Zhong, Gang Pan, Gang Pan, Hui Zhao, Hui Zhao, Chao Wang, Chao Wang, Chao Wang   +7 more
doaj   +1 more source

Inner filter correction of dissolved organic matter fluorescence [PDF]

Limnology and Oceanography: Methods, 2013
The fluorescence of dissolved organic matter (DOM) is suppressed by a phenomenon of self‐quenching known as the inner filter effect (IFE). Despite widespread use of fluorescence to characterize DOM in surface waters, the advantages and constraints of IFE correction are poorly defined.
Dolly N. Kothawala, Kathleen R. Murphy, Colin A. Stedmon, Gesa A. Weyhenmeyer, Lars J. Tranvik   +4 more
openaire   +1 more source

Coupling Between Carbon and Nitrogen Metabolic Processes Mediated by Coastal Microbes in Synechococcus-Derived Organic Matter Addition Incubations

Frontiers in Microbiology, 2020
Phytoplankton are major contributors to labile organic matter in the upper ocean. Diverse heterotrophic bacteria successively metabolize these labile compounds and drive elemental biogeochemical cycling.
Rui Xie, Rui Xie, Yu Wang, Yu Wang, Yu Wang, Qi Chen, Qi Chen, Weidong Guo, Weidong Guo, Nianzhi Jiao, Nianzhi Jiao, Qiang Zheng, Qiang Zheng   +12 more
doaj   +1 more source