Results 21 to 30 of about 4,986 (198)

Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters

Environmental Research Letters, 2021
Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent decades. Here, we assess a database of 426 undisturbed headwater lakes and streams in Europe and North
Heleen A de Wit, John L Stoddard, Donald T Monteith, James E Sample, Kari Austnes, Suzanne Couture, Jens Fölster, Scott N Higgins, Daniel Houle, Jakub Hruška, Pavel Krám, Jiří Kopáček, Andrew M Paterson, Salar Valinia, Herman Van Dam, Jussi Vuorenmaa, Chris D Evans   +16 more
doaj   +1 more source

Upcycling Water Pollutants Into Long‐Chain Polymers via Synergistic Interfacial Dechlorination and Organic Radical Stabilization

Angewandte Chemie, EarlyView.
HEO‐regulated electronic structure drives nonradical PI activation, promoting ETP‐mediated polymerization of 4CP into high‐molecular‐weight products with enhanced surface enrichment. Concurrent dechlorination occurs via radical coupling and •OHads attack, enabling efficient carbon retention and selective product evolution at the liquid–solid interface.
Ziwei Yao, Yidi Chen, Penghui Shao, Jian Liu, Xiaodan Wang, Kunsheng Hu, Xubiao Luo, Nanqi Ren, Xiaoguang Duan   +8 more
wiley   +2 more sources

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

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

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

Dissolved Organic Matter (DOM) in a Warm-Temperate Forested Watershed—A Possibility of Ultraviolet Absorbance as an Indicator of DOM

Forests, 2022
We investigated changes in the quantity and quality of dissolved organic matter (DOM) from rain to stream water in a forested watershed at Yamashiro Experimental Forest (YMS) in southern Kyoto prefecture. The dissolved organic carbon (DOC) concentration and specific UV absorbance at 254 nm (SUVA254) in rainwater increased in the order of bulk rain ...
Shinji Kaneko, Hitomi Furusawa, Toru Okamoto, Yasuhiro Hirano   +3 more
openaire   +1 more source