Results 1 to 10 of about 457,814 (191)

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   +11 more sources

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

Nat Commun
Soil 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. Here,
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   +6 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 CO2 into particulate organic carbon (POC). This POC sinks and is respired, releasing CO2 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   +6 more sources

Remineralization of particulate organic carbon in an ocean oxygen minimum zone. [PDF]

Nat Commun, 2017
Biological oceanic processes, principally the surface production, sinking and interior remineralization of organic particles, keep atmospheric CO2 lower than if the ocean was abiotic.
Cavan EL, Trimmer M, Shelley F, Sanders R.   +3 more
europepmc   +8 more sources

Particulate organic matter as a functional soil component for persistent soil organic carbon [PDF]

Nature Communications, 2021
The largest terrestrial organic carbon pool, carbon in soils, is regulated by an intricate connection between plant carbon inputs, microbial activity, and the soil matrix.
K. Witzgall, A. Vidal, David I. Schubert, C. Höschen, S. Schweizer, F. Buegger, Valérie Pouteau, C. Chenu, C. Mueller   +8 more
semanticscholar   +6 more sources

Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw

Nature Communications, 2022
Based on observations from thermokarst-impacted sites on the Tibetan Plateau, the authors find substantial particulate organic carbon loss but stable mineral-associated organic carbon and enriched iron-bound organic carbon upon permafrost thaw.
Futing Liu, Shuqi Qin, Kai Fang, Leiyi Chen, Yunfeng Peng, Pete Smith, Yuanhe Yang   +6 more
doaj   +2 more sources

Aridity drives the response of soil total and particulate organic carbon to drought in temperate grasslands and shrublands. [PDF]

Sci Adv
The increasing prevalence of drought events in grasslands and shrublands worldwide potentially has impacts on soil organic carbon (SOC). We leveraged the International Drought Experiment to study how SOC, including particulate organic carbon (POC) and ...
Shi B, Delgado-Baquerizo M, Knapp AK, Smith MD, Reed S, Osborne B, Carrillo Y, Maestre FT, Zhu Y, Chen A, Wilkins K, Holdrege MC, Kulmatiski A, Picon-Cochard C, Roscher C, Power S, Byrne KM, Churchill AC, Jentsch A, Henry HAL, Beard KH, Schuchardt MA, Eisenhauer N, Otfinowski R, Hautier Y, Shen H, Wang Y, Wang Z, Wang C, Cusack DF, Petraglia A, Carbognani M, Forte TGW, Flory S, Hou P, Zhang T, Gao W, Sun W.   +37 more
europepmc   +2 more sources

Krill faecal pellets drive hidden pulses of particulate organic carbon in the marginal ice zone. [PDF]

Nat Commun, 2019
The biological carbon pump drives a flux of particulate organic carbon (POC) through the ocean and affects atmospheric levels of carbon dioxide. Short term, episodic flux events are hard to capture with current observational techniques and may thus be ...
Belcher A, Henson SA, Manno C, Hill SL, Atkinson A, Thorpe SE, Fretwell P, Ireland L, Tarling GA.   +8 more
europepmc   +2 more sources

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

BMC Ecol, 2018
BackgroundRehabilitation of degraded rangelands through the establishment of enclosures (fencing grazing lands) is believed to improve soil quality and livelihoods, and enhance the sustainability of rangelands.
Oduor CO, Karanja NK, Onwonga RN, Mureithi SM, Pelster D, Nyberg G.   +5 more
europepmc   +2 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