Results 51 to 60 of about 650,176 (246)

Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions

Science Advances, 2021
Rhizodeposition and roots play opposite but complementary roles for building mineral-associated and particulate organic carbon. Soil organic carbon formation remains poorly understood despite its importance for human livelihoods. Uncertainties remain for
S. Villarino, Priscila Pinto, R. B. Jackson, G. Piñeiro   +3 more
semanticscholar   +1 more source

A liquid chromatography tandem mass spectrometry method for simultaneous analysis of 46 atmospheric particulate-phase persistent organic pollutants and comparison with gas chromatography/mass spectrometry, [PDF]

, 2017
A novel multi-analyte method for the simultaneous determination of 46 compounds of environmental concern, most of them belonging to the category of persistent organic pollutants, was developed using high-performance liquid chromatography and the results ...
Buiarelli, Francesca, Di Filippo, Patrizia, Pomata, Donatella, Riccardi, Carmela, Bartocci, Martina   +4 more
core   +1 more source

Organic Matter Controls of Iron Incorporation in Growing Sea Ice

Frontiers in Earth Science, 2018
This study presents the first laboratory-controlled sea-ice growth experiment conducted under trace metal clean conditions. The role played by organic matter in the incorporation of iron (Fe) into sea ice was investigated by means of laboratory ice ...
Julie Janssens, Julie Janssens, Julie Janssens, Klaus M. Meiners, Klaus M. Meiners, Ashley T. Townsend, Delphine Lannuzel, Delphine Lannuzel   +7 more
doaj   +1 more source

Rapid Cycling of Bacterial Particulate Organic Matter in the Upper Layer of the Western Pacific Warm Pool

Geophysical Research Letters, 2023
Bacterial metabolism largely drives the sequestration of refractory organic matter in the ocean. However, a lack of understanding exists regarding the abundance and reactivity of bacterial particulate organic matter (POM).
Jinqiang Guo, Bu Zhou, Eric P. Achterberg, Huamao Yuan, Jinming Song, Liqin Duan, Xuegang Li   +6 more
doaj   +1 more source

Sorption of polycyclic aromatic hydrocarbons on particulate organic matters [PDF]

Journal of Hazardous Materials, 2010
Particulate organic matter (POM) is a key organic matter fraction which can influence soil fertility. Its interactions with hydrophobic organic pollutants (HOCs) have not been characterized and the mechanisms of retention of HOCs by POM remain unclear. In the present study, sorption behaviors of polycyclic aromatic hydrocarbons (PAHs) naphthalene (NAP),
Xueyan, Guo, Lei, Luo, Yibing, Ma, Shuzhen, Zhang   +3 more
openaire   +2 more sources

Frações lábeis e estáveis da matéria orgânica do solo sob sistemas de manejo e cerrado nativo [PDF]

, 2010
A matéria orgânica do solo pode ser estudada por meio de suas diferentes frações. Alterações dos teores de matéria orgânica, ocasionadas pelo uso do solo, podem ser mais bem compreendidas pelas mudanças nos seus diferentes compartimentos.
Carneiro, Marco Aurélio Carbone, Figueiredo, Cícero Célio de, Resck, Dimas Vital Siqueira   +2 more
core   +3 more sources

The unique biogeochemical role of carbonate-associated organic matter in a subtropical seagrass meadow

Communications Earth & Environment
The particulate organic matter buried in carbonate-rich seagrass ecosystems is an important blue carbon reservoir. While carbonate sediments are affected by alkalinity produced or consumed in seagrass-mediated biogeochemical processes, little is known ...
Mary A. Zeller, Bryce R. Van Dam, Christian Lopes, Amy M. McKenna, Christopher L. Osburn, James W. Fourqurean, John S. Kominoski, Michael Ernst Böttcher   +7 more
doaj   +1 more source

Contrasting seasonality in optical-biogeochemical properties of the Baltic Sea [PDF]

, 2017
Optical-biogeochemical relationships of particulate and dissolved organic matter are presented in support of remote sensing of the Baltic Sea pelagic. This system exhibits strong seasonality in phytoplankton community composition and wide gradients of ...
Kallio, KY, Kutser, T, Simis, SGH, Spilling, K, Ylöstalo, P   +4 more
core   +1 more source

Biological Formation of Organic Substances from Particulate Organic Matter

Canadian Chemical Transactions, 2015
Biological degradation of terrestrially derived macromolecules including lignin and cellulose has been shown to produce a large number of environmentally relevant phenolic compounds. It has demonstrated that extracellular superoxide (O2  ) is produced by heterotrophic bacteria that are common in lakes, soil, hydrothermal vents, marine sediments ...
Mostofa, Khan M. G., Liu, Cong Qiang, MINELLA, Marco, VIONE, Davide Vittorio   +3 more
openaire   +2 more sources

Particulate and water-soluble carbon measured in recent snow at Summit, Greenland [PDF]

, 2007
Water-soluble organic carbon (WSOC), waterinsoluble particulate organic carbon (WIOC), and particulate elemental carbon (EC) were measured simultaneously for the first time on the Greenland Ice Sheet in surface snow and in a 3-meter snow pit.
Anderson, Casey, Bergin, M, Dibb, Jack E., Hagler, Gayle S.W., Smith, Eugene A, Steig, Eric J   +5 more
core   +2 more sources