Results 51 to 60 of about 34,958 (163)

Components of organic carbon pool and profile distribution of δ¹³C values in typical stagnic anthrosols from Hangzhou-Jiaxing-Huzhou Plain

浙江大学学报. 农业与生命科学版, 2010
Three typical stagnic anthrosols, including silty-clayey yellow mottled paddy soil on fluvialmarine, blue clayey paddy soil, and gleyed blue clayey paddy soil, were collected from the Hangzhou-Jiaxing-Huzhou Plain to characterize vertical distribution of
LIU Zhao-yun, ZHANG Ming-kui
doaj   +1 more source

Temperature Dependence of Photodegradation of Dissolved Organic Matter to Dissolved Inorganic Carbon and Particulate Organic Carbon

PLOS ONE, 2015
Photochemical transformation of dissolved organic matter (DOM) has been studied for more than two decades. Usually, laboratory or "in-situ" experiments are used to determine photodegradation variables. A common problem with these experiments is that the photodegradation experiments are done at higher than ambient temperature.
Petr Porcal, Peter J Dillon, Lewis A Molot   +2 more
openaire   +4 more sources

The Nature of Carbon Flux in Gunungsewu Karst, Java-Indonesia

Acta Carsologica, 2016
The research documented here aims to clarify the transport and fate of carbon species that evolved in a typical conical karst system in Gunungsewu. Special interest is attributed to the estimate of carbon flux by considering the conical karst as a whole ...
Eko Haryono, Danardono Danardono, Sekti Mulatsih, Sutanto Trijuni Putro, Tjahyo Nugroho Adji   +4 more
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Dissolved and particulate organic carbon in Icelandic proglacial streams [PDF]

, 2018
Abstract. Here for the first time, we analyze the concentration of dissolved (DOC) and particulate organic carbon (POC), as well as its optical properties (absorbance and fluorescence) in proglacial streams of Iceland, location of Europe's largest nonpolar ice cap. DOC and POC concentrations range from 0.11 mg L−1 to 0.94 mg L−1 and from 0.67 mg L−1 to
Chifflard, Peter, Fasching, Christina, Reiss, Martin, Ditzel, Lukas   +3 more
openaire   +2 more sources

Bacterial-viral interactions in the sea surface microlayer of a black carbon-dominated tropical coastal ecosystem (Halong Bay, Vietnam)

Elementa: Science of the Anthropocene, 2018
Increasing human activity has raised concerns about the impact of deposition of anthropogenic combustion aerosols (i.e., black carbon; BC) on marine processes. The sea surface microlayer (SML) is a key gate for the introduction of atmospheric BC into the
A. S. Pradeep Ram, X. Mari, J. Brune, J. P. Torréton, V. T. Chu, P. Raimbault, J. Niggemann, T. Sime-Ngando   +7 more
doaj   +1 more source

Carbonaceous Aerosols in Fine Particulate Matter of Santiago Metropolitan Area, Chile

The Scientific World Journal, 2014
Measurements of carbonaceous aerosols in South American cities are limited, and most existing data are of short term and limited to only a few locations.
Richard Toro Araya, Robert Flocchini, Rául G. E. Morales Segura, Manuel A. Leiva Guzmán   +3 more
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Chlorophyll a, Particulate Organic Carbon and Particulate Organic Nitrogen in Sessile Algal Communities of Nepalese Mountain Rivers

Japanese Journal of Limnology (Rikusuigaku Zasshi), 1982
Amounts of chlorophyll a, particulate organic carbon and nitrogen of sessile algal communities in Nepalese mountain rivers were estimated. Samplings were performed at 34 points in the three main river systems of the east, middle and west Nepal from December 1978 to June 1979. Chlorophyll a amounts ranged from 1.3-189.6 mg·m-2 (average, 18.6). The ratio
Akira TERASHIMA, Masami NAKANISHI
openaire   +2 more sources

Carbon in an Arctic fjord: sea ice carbon transformations and CO2 linkages

Frontiers in Marine Science
IntroductionThe biogeochemical processes underlying carbon cycling in Arctic coastal systems are rapidly evolving due to intensified ice loss. (Aim) This study examined the distinct contributions of dissolved organic carbon (DOC) and particulate carbon ...
Ximena Aguilar-Vega, Agneta Fransson, Melissa Chierici, Ian Washbourne, Evangelos Spyrakos   +4 more
doaj   +1 more source

Particulate dominance of organic carbon mobilization from thaw slumps on the Peel Plateau, NT: Quantification and implications for stream systems and permafrost carbon release

Environmental Research Letters, 2020
Climate change is increasing the frequency and intensity of thermokarst, and accelerating the delivery of terrestrial organic material from previously sequestered sources to aquatic systems, where it is subject to further biochemical alteration.
S Shakil, S E Tank, S V Kokelj, J E Vonk, S Zolkos   +4 more
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Soil depth distribution of particulate organic carbon and nitrogen in the southeastern United States

Agricultural & Environmental Letters
Particulate organic matter may be an important component feeding soil microbial activity. This study described population‐level statistics of particulate organic carbon (C) and nitrogen (N) in predominately Ultisols across 181 farms throughout North ...
Alan J. Franzluebbers
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