Results 171 to 180 of about 650,176 (246)

Management practices differently affect particulate and mineral-associated organic matter and their precursors in arable soils

, 2020
Our understanding of soil organic matter (SOM) formation and stabilization mechanisms has evolved recently. The SOM is considered as a continuum from coarse fresh and decomposing plant residues (particulate organic matter, >53 μm; POM) to fine and ...
Marie-Élise Samson, M. Chantigny, A. Vanasse, S. Menasseri-Aubry, Isabelle Royer, D. Angers   +5 more
semanticscholar   +1 more source

Carbon and nitrogen isotopic composition of particulate organic matter in the Pearl River Estuary and the adjacent shelf

Estuarine, Coastal and Shelf Science, 2020
The isotopic composition (δ13C and δ15N), organic carbon and nitrogen contents and C/N ratios of suspended particulate organic matter (POM) collected from the Pearl River Estuary and the adjacent shelf during spring and summer of 2017 were determined to ...
Chao Huang, Fajin Chen, Shuwen Zhang, Chunqing Chen, Yafei Meng, Qingmei Zhu, Zhiguang Song   +6 more
semanticscholar   +1 more source

Release of dissolved and particulate organic matter by marine macroalgae and its biogeochemical implications

, 2020
Understanding the release of organic matter by macroalgae provides insight into carbon and nutrient cycling in ecosystems. However, there is little information on how the various fractions of dissolved and particulate organic matter released from ...
Si Chen, Kai Xu, De-hua Ji, Wenlei Wang, Yan Xu, Chang-sheng Chen, Chaotian Xie   +6 more
semanticscholar   +1 more source

Electron accepting capacity of dissolved and particulate organic matter control CO2 and CH4 formation in peat soils

Geochimica et Cosmochimica Acta, 2019
Peatlands are a major source of atmospheric CH4. The availability of terminal electron acceptors largely affects the ratio of CO2 to CH4 formation under water-logged anoxic conditions in these systems. Although the importance of peat organic matter as an
Chuanyu Gao, M. Sander, Svenja Agethen, K. Knorr   +3 more
semanticscholar   +1 more source

Decomposition: Particulate Organic Matter

1991
Decomposition completes the biogeochemical cycles that photosynthesis initiates. Thus, complete decomposition results in the conversion of the organic (reduced) products of photosynthesis back into the inorganic (generally oxidized) constituents used as the reactants for photosynthesis (see Exercise 14).
Robert G. Wetzel, Gene E. Likens
openaire   +1 more source

Electrostatic Method to Remove Particulate Organic Matter from Soil

Journal of Visualized Experiments, 2021
Estimations of soil organic carbon are dependent on soil processing methods including removal of undecomposed plant material. Inadequate separation of roots and plant material from soil can result in highly variable carbon measurements. Methods to remove the plant material are often limited to the largest, most visible plant materials.
Stewart B, Wuest, Catherine L, Reardon
openaire   +2 more sources

The organic constituents of atmospheric particulate matter

Atmospheric Environment (1967), 1976
Abstract The ether soluble fraction of atmospheric aerosol particles was separated into the following groups of compounds: organic acids and phenols, organic bases, aliphatic hydrocarbons, aromatic hydrocarbons and neutral compounds. These groups in turn were analyzed for individual constituents.
Grigorios Ketseridis, Jürgen Hahn, Ruprecht Jaenicke, Christian Junge   +3 more
openaire   +2 more sources

Particulate Organic Matter along the Northern Sea Route

Океанология, 2015
The comparative evaluation of the content of particulate organic carbon (POC) in surface seawater along the Northern Sea Route from Norway to the East Siberian Sea (the southern track) during the summer seasons of 2004–2011 was carried out based on the authors’ data. The content and distribution of organic component in particulate matter were estimated,
A. A. Vetrov, M. S. Ponyaev, N. A. Belyaev, E. A. Romankevich   +3 more
openaire   +1 more source

Fine sediment and particulate organic matter: A review and case study on ridge-to-reef transport, transformations, fates, and impacts on marine ecosystems.

Marine Pollution Bulletin, 2018
Studies documenting the effects of land-derived suspended particulate matter (SPM, i.e., particulate organic matter and mineral sediment) on marine ecosystems are typically disconnected from terrestrial studies that determine their origin, transport and ...
Zoë T. Bainbridge, S. Lewis, Rebecca Bartley, Katharina E. Fabricius, C. Collier, J. Waterhouse, A. Garzon-Garcia, Barbara J. Robson, J. M. Burton, Amelia S. Wenger, J. Brodie   +10 more
semanticscholar   +1 more source

Particulate matter–bound organic compounds: levels, mutagenicity, and health risks

Environmental Science and Pollution Research, 2022
Increased industrialization and consumption of fossil fuels in the Metropolitan Region of São Paulo (MRSP), Brazil, have caused a growth of the particulate matter emissions to the atmosphere and an increase in population health problems. Particulate and gaseous phase samples were collected in different short campaigns (2015, 2016, and 2017) near an ...
Sofia Caumo, Aleinnys B. Yera, Ana Vicente, Célia Alves, Deborah A. Roubicek, Pérola de Castro Vasconcellos   +5 more
openaire   +3 more sources