Results 21 to 30 of about 4,386,581 (289)

Sorption and fractionation of dissolved organic matter and associated phosphorus in agricultural soil [PDF]

, 2007
Molibility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from oils to surface waters. To study the sorption an mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM ...
Hansen, H.C.B., Styczen, M., Hansen, S., Gjettermann, B., Borggaard, O.K.   +4 more
core   +2 more sources

Upper Jurassic–Lower Cretaceous Source Rocks in the North of Western Siberia: Comprehensive Geochemical Characterization and Reconstruction of Paleo-Sedimentation Conditions

Geosciences, 2021
The present work is devoted to geochemical studies of the Bazhenov Formation in the north of the West Siberian Petroleum Basin. The object is the Upper Jurassic–Lower Cretaceous section, characterized by significant variations in total organic carbon ...
Evgeniya Leushina, Timur Bulatov, Elena Kozlova, Ivan Panchenko, Andrey Voropaev, Tagir Karamov, Yakov Yermakov, Natalia Bogdanovich, Mikhail Spasennykh   +8 more
doaj   +1 more source

The role of sideration in the accumulation of organic matter

АгроЭкоИнфо, 2021
Data on the effect of long-term (18 years) use of crop sideration (white mustard), both separately and in combination with straw fertilizer, on the content of organic matter in sod-podzolic soil and crop productivity are presented. In the conditions of an acute shortage of organic fertilizers in agriculture in the central regions of the non-Chernozem ...
openaire   +1 more source

Enhanced rates of particulate organic matter remineralization by microzooplankton are diminished by added ballast minerals [PDF]

, 2013
To examine the potentially competing influences of microzooplankton and calcite mineral ballast on organic matter remineralization, we incubated diatoms in darkness in rolling tanks with and without added calcite minerals (coccoliths) and ...
Le Moigne, F.A.C., De La Rocha, C., De La Rocha, C. L., de La Rocha, Christina, L., Le Moigne, F., M. Gallinari, Le Moigne, Frédéric A.C., Laurenceau, E., C. L. De La Rocha, Gallinari, Morgane, F. A. C. Le Moigne, Le Moigne, Frederic A. C., Le Moigne, F. A. C., E. Laurenceau, De La Rocha, C.L., Gallinari, M.   +15 more
core   +2 more sources

Study of the trace metal ion influence on the turnover of soil organic matter in cultivated contaminated soils [PDF]

, 2006
The role of metals in the behaviour of soil organic matter (SOM) is not well documented. Therefore, we investigated the influence of metals (Pb, Zn, Cu and Cd) on the dynamic of SOM in contaminated soils where maize (C4 plant) replaced C3 cultures. Three
Quenea, Katelle, Toinen, S., Benedetti, M.F., Bermond, Alain, Benedetti, Marc F., Dumat, Camille, Quenea, K., Bermond, A.   +7 more
core   +1 more source

Depositional environment variations and organic matter accumulation of the first member of the Qingshankou formation in the southern Songliao Basin, China

Frontiers in Earth Science, 2023
The organic-rich shale in the first member of the Qingshankou Formation, which is located in the southern Songliao Basin, is regarded as a high-quality source rock in East China.
Yan Ma, Yan Ma, Yan Ma, Feng Jinlai
doaj   +1 more source

Possible role of organic matter in radiocaesium adsorption in soils [PDF]

, 2002
The aim of this review is to examine the hypothesis that organic matter decreases the adsorption of radiocaesium on clay minerals. The factors that determine radiocaesium mobility and bioavailability in soil are briefly outlined to show why a ...
Zsolnay, A., Dumat, C., Dumat, Camille, Staunton, Siobhan, Staunton, S.   +4 more
core   +1 more source

Fractions of particulate organic matter in soils depending upon farmyard manure and mineral fertilization [PDF]

, 2002
In a long-term fertilization trial particulate organic matter (POM) was investigated after 20 years of farmyard manure vs. mineral fertilization at different levels with the method of Meijboom et al. (1995).
Raupp, Dr Joachim, Oltmanns, Meike
core   +1 more source

Geochemical Characteristics of the Middle Devonian Dacaozi-Tanshanping Shale Strata in the Yanyuan Basin, Southwest China: Implications for Organic Matter Accumulation and Preservation

Geofluids, 2021
How the geochemical characteristics of organic matter shale for the carbonate platform facies remain uncertain, which restricts an integrated reconstruction of the model of organic matter accumulation and preservation.
Ziya Zhang, Wei Yang, Xingyu Li, Yan Song, Zhenxue Jiang, Qun Luo   +5 more
doaj   +1 more source

Organic geochemistry and controlling factors of alkaline source rocks within sequence stratigraphic framework in the Fengcheng Formation, Mahu sag, Junggar Basin, NW China

Energy Exploration & Exploitation, 2022
The Fengcheng Formation (P 1 f ) source rock, which was deposited in an alkaline water body, is one of the most significant source rocks in the Mahu sag, Junggar Basin.
Gangqiang Chen, Dongyong Wang, Fan Yang, Yuantao Tang, Xianli Zou, Wanyun Ma, Minhang Li   +6 more
doaj   +1 more source