Results 31 to 40 of about 457,814 (191)

Agro-residue biochar and N fertilizer addition mitigates CO2-C emission and stabilized soil organic carbon pools in a rain-fed agricultural cropland

International Soil and Water Conservation Research, 2021
Scarce carbon dioxide (CO2) emission data, soil organic carbon (Corg) and labile Corg pool index for croplands in sub-Saharan Africa (SSA) limits our ability to define regional CO2 flux and mitigation prospects provided by biochar amendment.
Segun O. Oladele, Adewole T. Adetunji
doaj   +1 more source

How is particulate organic carbon transported through the river-fed submarine Congo Canyon to the deep sea? [PDF]

Biogeosciences
The transfer of carbon from land to the near-coastal ocean is increasingly being recognized in global carbon budgets. However, a more direct transfer of terrestrial organic carbon to the deep sea is comparatively overlooked.
S. Hage, M. L. Baker, N. Babonneau, G. Soulet, B. Dennielou, R. Silva Jacinto, R. G. Hilton, V. Galy, F. Baudin, C. Rabouille, C. Vic, S. Sahin, S. Açikalin, P. J. Talling   +13 more
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Microbial-mediated contribution of kelp detritus to different forms of oceanic carbon sequestration

Ecological Indicators, 2022
Kelp is one of the most important primary producers in the coastal oceans. When it matures or begins to decay, a substantial amount of detritus sinks and is degraded by microorganisms.
Xiuting Feng, Hongmei Li, Zenghu Zhang, Tianqi Xiong, Xiaoyong Shi, Chen He, Quan Shi, Nianzhi Jiao, Yongyu Zhang   +8 more
doaj   +1 more source

THE MEASUREMENT OF DISSOLVED ORGANIC AND PARTICULATE CARBON IN SEAWATER1 [PDF]

Limnology and Oceanography, 1964
A method is described for the rapid determination of dissolved organic carbon in seawater in concentrations between 0.1 and 20 mg/liter. The oxidation is carried out in sealed glass ampoules using K2S2O8 as an oxidizing agent after the sample has been freed of inorganic carbon. The resulting CO2 is passed through a nondispersive infrared analyzer using
David W. Menzel, Ralph F. Vaccaro
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Influence of Algal Production and Decomposition on the Carbon Isotope Signature of Labile Particulate Organic Matter on a Productive Continental Shelf Under the Stress of Coastal Hypoxia

Frontiers in Marine Science, 2020
To better understand the sources and recycling of labile organic matter in coastal water, we studied the carbon isotope signature of particulate organic carbon (POC) and particulate amino acids, a major group of labile organic compounds, on the shelf of ...
Zixiang Yang, Zixiang Yang, Han Zhang, Peihong Kang, Peihong Kang, Yangyang Zhao, Yangyang Zhao, Tiantian Tang, Tiantian Tang   +8 more
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Biocatalytic quantification of α‐glucan in marine particulate organic matter

MicrobiologyOpen, 2022
Marine algae drive the marine carbon cycle, converting carbon dioxide into organic material. A major component of this produced biomass is a variety of glycans. Marine α‐glucans include a range of storage glycans from red and green algae, bacteria, fungi,
Nicola Steinke, Silvia Vidal‐Melgosa, Mikkel Schultz‐Johansen, Jan‐Hendrik Hehemann   +3 more
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Nitrogen increases soil organic carbon accrual and alters its functionality

Global Change Biology, 2023
Nitrogen (N) availability has been considered as a critical factor for the cycling and storage of soil organic carbon (SOC), but effects of N enrichment on the SOC pool appear highly variable.
Bo Tang, K. Rocci, A. Lehmann, M. Rillig
semanticscholar   +1 more source

Zooplankton response to organic carbon level in lakes of differing trophic states

Knowledge and Management of Aquatic Ecosystems, 2014
Water eutrophication is associated with an increase in the organic carbon content (both particulate and dissolved forms), which may affect the functioning of the zooplankton community.
Bowszys M., Dunalska J.A., Jaworska B.
doaj   +1 more source

Distribution characters of particulate organic carbon and black carbon in soils under different forestry vegetations

浙江大学学报. 农业与生命科学版, 2011
To understand the effects of vegetation types on soil particulate organic carbon and black carbon, samples of soil profiles under six types of forestry vegetations were collected from Wuyanling nature reserve, Taishun County, Zhejiang Province.
WANG Yang, ZHANG Ming-kui
doaj   +1 more source

Particulate organic carbon: Sampling variability [PDF]

Limnology and Oceanography, 1974
Replicate sampling for particulate organic carbon (POC) in the open ocean indicates that at any given position and depth the POC distribution consists of a homogeneous background concentration on which are superimposed occasional small patches containing two to five times as much organic carbon as is present in the background. The 95% confidence limits
openaire   +1 more source