Results 21 to 30 of about 5,249 (199)

What can we learn from amino acids about oceanic organic matter cycling and degradation? [PDF]

Biogeosciences, 2022
Amino acids (AAs) mainly bound in proteins are major constituents of living biomass and non-living organic material in the oceanic particulate and dissolved organic matter pool. Uptake and cycling by heterotrophic organisms lead to characteristic changes
B. Gaye, N. Lahajnar, N. Harms, S. A. L. Paul, S. A. L. Paul, T. Rixen, T. Rixen, K.-C. Emeis   +7 more
doaj   +1 more source

Factors controlling the distribution of dissolved organic carbon and nitrogen in the coastal waters off Jeju Island

Frontiers in Marine Science, 2023
The composition of dissolved organic matter (DOM) in the coastal waters off Jeju Island, Korea, originates from a complex mixture of organic sources. This study examined the dynamics and sources of dissolved organic carbon (DOC) and dissolved organic ...
Young Kyoung Song, Jeonghyun Kim, Yong Hwa Oh, DongJoo Joung, Tae-Hoon Kim   +4 more
doaj   +1 more source

Tree‐DOM: Dissolved organic matter in throughfall and stemflow

Limnology and Oceanography Letters, 2018
AbstractRainfall onto trees entrains dissolved organic matter (tree‐DOM). Tree‐DOM is then exported down stems in stemflow and through leaves, branches, and gaps as throughfall. We synthesize tree‐DOM literature, presenting trends in and controls of tree‐DOM concentrations, fluxes, and chemistry. Tree‐DOM concentrations are higher in stemflow (7–482 mg‐
John T. Van Stan, Aron Stubbins
openaire   +2 more sources

Analytical dataset on the molecular compositional changes of dissolved organic matter during hyperthermophilic composting

Data in Brief, 2019
The aim of this research work was to determine the molecular compositional changes of dissolved organic matter (DOM) taken from different phases of the hyperthermophilic composting (HTC) process. The DOM samples were extracted by the standard protocol of
Zhen Yu, Xiaoming Liu, Changya Chen, Hanpeng Liao, Zhi Chen, Shungui Zhou   +5 more
doaj   +1 more source

The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter?

Agronomy, 2022
Dissolved organic matter (DOM) is a key soil quality property, indicative of the organic matter stored in the soil, which may also be a function of temporal variation.
Thulfiqar Al-Graiti, Gergely Jakab, Noémi Ujházy, Anna Vancsik, Nándor Fodor, Tamás Árendás, Balázs Madarász, Zoltán Barcza, Károly Márialigeti, Zoltán Szalai   +9 more
doaj   +1 more source

Seasonal hydrology drives rapid shifts in the flux and composition of dissolved and particulate organic carbon and major and trace ions in the Fraser River, Canada [PDF]

Biogeosciences, 2015
Rapid changes in the volume and sources of discharge during the spring freshet lead to pronounced variations in biogeochemical properties in snowmelt-dominated river basins.
B. M. Voss, B. Peucker-Ehrenbrink, T. I. Eglinton, R. G. M. Spencer, E. Bulygina, V. Galy, C. H. Lamborg, P. M. Ganguli, D. B. Montluçon, S. Marsh, S. L. Gillies, J. Fanslau, A. Epp, R. Luymes   +13 more
doaj   +1 more source

Organic Fertilization Enhances Microbial-Mediated Dissolved Organic Matter Composition and Transformation in Paddy Soil

Agriculture
Dissolved organic matter (DOM) is a crucial carbon source for soil microorganisms and plays a vital role in nutrient cycling and carbon (C) sequestration in soils.
Long Chen, Huajun Fang, Shulan Cheng, Hui Wang, Yifan Guo, Fangying Shi, Bingqian Liu, Haiguang Pu   +7 more
doaj   +1 more source

Biological early diagenesis and insolation-paced paleoproductivity signified in deep core sediment organic matter

Scientific Reports, 2017
The dynamics of a large stock of organic matter contained in deep sediments of marginal seas plays pivotal role in global carbon cycle, yet it is poorly constrained.
Meilian Chen, Ji-Hoon Kim, Jiyoung Choi, Yun Kyung Lee, Jin Hur   +4 more
doaj   +1 more source

Epiphytic Bacteria Are Essential for the Production and Transformation of Algae-Derived Carboxyl-Rich Alicyclic Molecule (CRAM)-like DOM

Microbiology Spectrum, 2021
The microbial carbon pump (MCP) provides a mechanistic illustration of transformation of recalcitrant dissolved organic matter (DOM) in the ocean. Here, we explored and demonstrated the key roles of algae-associated microorganisms (mainly heterotrophic ...
Yang Liu, Jinjun Kan, Chen He, Quan Shi, Yan-Xia Liu, Zhen-Chuan Fan, Jun Sun   +6 more
doaj   +1 more source

Humic, terrestrially derived dissolved organic matter is associated with higher methylmercury concentrations in prairie wetland ponds

FACETS
Dissolved organic matter (DOM) comprises most of the organic matter in the water column of surface waters, playing important roles in biogeochemical cycles, including that of mercury. We characterized DOM in surface water of wetlands ponds located in the
Faraz Khan, Zohra Zahir, Britt D. Hall
doaj   +1 more source