Results 1 to 10 of about 34,938 (143)

Particulate Organic Carbon Deconstructed: Molecular and Chemical Composition of Particulate Organic Carbon in the Ocean [PDF]

Frontiers in Marine Science, 2020
The dynamics of the particulate organic carbon (POC) pool in the ocean are central to the marine carbon cycle. POC is the link between surface primary production, the deep ocean, and sediments.
Jenan J. Kharbush, Hilary G. Close, Benjamin A. S. Van Mooy, Carol Arnosti, Rienk H. Smittenberg, Frédéric A. C. Le Moigne, Gesine Mollenhauer, Gesine Mollenhauer, Barbara Scholz-Böttcher, Igor Obreht, Boris P. Koch, Kevin W. Becker, Morten H. Iversen, Morten H. Iversen, Wiebke Mohr   +14 more
doaj   +6 more sources

Review on Dissolved Organic Carbon and Particulate Organic Carbon in Marine Environment

Ilmu Kelautan, 2018
Quantification the Dissolved and Particulate organic carbon in marine waters is an essential step towards ecosystem modeling and understanding carbon sequestration processes.
Radha Karuna Kumari, P. M. Mohan
doaj   +2 more sources

Shallow particulate organic carbon regeneration in the South Pacific Ocean. [PDF]

Proc Natl Acad Sci U S A, 2019
Significance Plankton in the sunlit surface ocean photosynthesize, fixing dissolved CO 2 into particulate organic carbon (POC). This POC sinks and is respired, releasing CO 2 into subsurface waters that are sequestered from the atmosphere.
Pavia FJ, Anderson RF, Lam PJ, Cael BB, Vivancos SM, Fleisher MQ, Lu Y, Zhang P, Cheng H, Cheng H, Edwards RL.   +10 more
europepmc   +5 more sources

Global turnover of soil mineral-associated and particulate organic carbon. [PDF]

Nat Commun
AbstractSoil organic carbon (SOC) persistence is predominantly governed by mineral protection, consequently, soil mineral-associated (MAOC) and particulate organic carbon (POC) turnovers have different impacts on the vulnerability of SOC to climate change.
Zhou Z, Ren C, Wang C, Delgado-Baquerizo M, Luo Y, Luo Z, Du Z, Zhu B, Yang Y, Jiao S, Zhao F, Cai A, Yang G, Wei G.   +13 more
europepmc   +4 more sources

Modelling carbon overconsumption and the formation of extracellular particulate organic carbon [PDF]

Biogeosciences, 2007
During phytoplankton growth a fraction of dissolved inorganic carbon (DIC) assimilated by phytoplankton is exuded in the form of dissolved organic carbon (DOC), which can be transformed into extracellular particulate organic carbon (POC).
C. Völker, D. Wolf-Gladrow, S. Thoms, A. Engel, J. Schröter, M. Schartau   +5 more
doaj   +9 more sources

Enhancing soil organic carbon, particulate organic carbon and microbial biomass in semi-arid rangeland using pasture enclosures. [PDF]

BMC Ecol, 2018
La réhabilitation des pâturages dégradés par la mise en place d'enclos (clôtures de pâturages) est censée améliorer la qualité des sols et les moyens de subsistance, et améliorer la durabilité des pâturages. L'enclos dominé par le pâturage (GDE) et l'enclos de pâturage contractuel (CGE) sont les systèmes de gestion d'enclos courants dans le comté de ...
Oduor CO, Karanja NK, Onwonga RN, Mureithi SM, Pelster D, Nyberg G.   +5 more
europepmc   +6 more sources

Estimating soil particulate organic carbon through total soil organic carbon

Ciencia del Suelo
Particulate soil organic carbon (POC) is sensitive to management changes, and a good soil health indicator. However, its determination is tedious and time consuming. Given POC changes represent most of total organic carbon (TOC) variation due to soil use,
Natalia Veronica Diovisalvi, Guillermo Alberto Studdert, Nahuel Ignacio Reussi Calvo, Germán Franco Dominguez, Angel Berardo   +4 more
doaj   +1 more source

Bacteria and Archaea Regulate Particulate Organic Matter Export in Suspended and Sinking Marine Particle Fractions

mSphere, 2023
The biological carbon pump (BCP) in the Southern Ocean is driven by phytoplankton productivity and is a significant organic matter sink. However, the role of particle-attached (PA) and free-living (FL) prokaryotes (bacteria and archaea) and their ...
Choaro D. Dithugoe, Oliver K. I. Bezuidt, Emma L. Cavan, William P. Froneman, Sandy J. Thomalla, Thulani P. Makhalanyane   +5 more
doaj   +1 more source

Soil organic carbon and particulate carbon in water in riparian systems under different land use

Terra Latinoamericana, 2021
Overexploitation of hydric resources and lack knowledge of interactions between riparian vegetation, water and soil, generates loss of environmental services and ecological degradation in many mountainous riparian environments. In order to characterizing
Eloísa A. Guerra-Hernández, Gerardo Cruz-Flores, Jorge D. Etchevers-Barra3   +2 more
doaj   +1 more source

River Organic Carbon Fluxes Modulated by Hydrodynamic Sorting of Particulate Organic Matter [PDF]

Geophysical Research Letters, 2022
AbstractRivers regulate the global carbon cycle by transferring particulate organic carbon (POC) from terrestrial landscapes to marine sedimentary basins, but the processes controlling the amount and composition of fluvially exported POC are poorly understood. We propose that hydrodynamic sorting processes modify POC fluxes during fluvial transit.
Marisa Repasch, Joel S. Scheingross, Niels Hovius, Andrea Vieth‐Hillebrand, Carsten W. Mueller, Carmen Höschen, Ricardo N. Szupiany, Dirk Sachse   +7 more
openaire   +6 more sources