Results 31 to 40 of about 52,957 (305)

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

open access: yesFrontiers 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   +8 more
doaj   +1 more source

New organic matter degradation proxies: Valid in lake systems? [PDF]

open access: yes, 2004
We determined concentrations and diagenetic state of organic matter in two cores from Lake Zug, Switzerland. To obtain a general picture of organic matter decay in the lake, we measured bulk parameters such as total organic carbon, total nitrogen, and ...
C. J. Schubert   +9 more
core   +1 more source

Carbon cycling and POC turnover in the mesopelagic zone of the ocean: Insights from a simple model [PDF]

open access: yes, 2010
Carbon budgets of the mesopelagic zone are poorly constrained, highlighting our lack of understanding of the biota that inhabit this environment and their role in the cycling and sequestering of carbon in the deep ocean.
Tang, Kam W., Anderson, Thomas R.
core   +1 more source

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

open access: yes, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (δ13CPOC) and associated biogeochemical parameters in sea ice and surface waters provides an insight into the factors affecting δ13CPOC in the ...
Carson, D. S.   +26 more
core   +1 more source

Biocatalytic quantification of α‐glucan in marine particulate organic matter

open access: yesMicrobiologyOpen, 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   +3 more
doaj   +1 more source

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

open access: yesKnowledge 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

open access: yes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

Assessing Soil Organic Carbon Stocks and Particle-Size Fractions across Cropping Systems in the Kiti Sub-Watershed in Central Benin

open access: yesC, 2022
Soil organic carbon storage in agricultural soil constitutes a crucial potential for sustainable agricultural productivity and climate change mitigation.
Arcadius Martinien Agassin Ahogle   +4 more
doaj   +1 more source

Particulate organic carbon: Sampling variability [PDF]

open access: yesLimnology 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

Efecto de diferentes tipos de uso de la tierra en las fracciones del carbono orgánico del suelo

open access: yesPastos y Forrajes, 2023
Objectives: To evaluate the effect of different types of land use on the organic carbon fractions of a chromic vertisol soil. Materials and Methods: The research was developed in a permanent observation point, located in Holguin province. Soil samples
George Martín-Gutiérrez   +4 more
doaj  

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