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Altered nitrogen transformation pathways and a legacy of sediment organic matter enrichment
Marine Pollution Bulletin, 2022Estuaries are ecologically valuable ecosystems that process nutrients through complex biogeochemical processes. Here we identify drivers and inhibitors of nitrogen removal in unvegetated intertidal sandflats at six sites in Manukau Harbour (37° 2.00'S 174° 42.00'E) to quantify the exchange of solutes across the sediment-water interface, with nitrogen ...
Grady L, Petersen +3 more
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Enrichment of organic matter of some Egyptian black shales
Mineral Processing and Extractive Metallurgy, 2007AbstractThe present paper focuses on obtaining concentrates enriched with organic matter that could be suitable for a retorting process from two different types of black shales; these are oil shale from the Safaga area on the Red Sea Coast, and carbonaceous shale from the Abu-Zenima area, west Central Sinai.
M. K. Abd El-Rahman, M. I. Al-Wakeel
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Fractionation of nitrogen-enriched dissolved organic matter in water
Separation and Purification Technology, 2013Abstract Dissolved organic nitrogen (DON) in water is associated with disinfection by-products (DBPs) formation especially for nitrogenous DBPs (N-DBPs), which possess stronger adverse health effects than traditional carbonaceous DBPs (C-DBPs). DON characteristics affect not only the amount but also the speciation of DBPs formation.
Huihsien Chang, Genshuh Wang
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Parent materials enriched in organic matter in the northeast of Russia
Eurasian Soil Science, 2010The distribution, development, and properties of the sedimentary parent materials in the northeastern sector of the Russian Arctic and Subarctic regions are discussed. Vast areas in this sector are occupied by deposits of the Ice Complex that were formed in the Late Pleistocene and have been preserved in the frozen state up to the present time.
S. V. Gubin, A. A. Veremeeva
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Aquatic Toxicology, 2014
Several studies have demonstrated that organic matter enrichment may be associated to aquaculture, leading to impoverished benthic communities and species succession with loss of biodiversity, but very few studies have investigated biochemical and physiological alterations that species affected by aquaculture activities undergo.
Carregosa, Vanessa +5 more
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Several studies have demonstrated that organic matter enrichment may be associated to aquaculture, leading to impoverished benthic communities and species succession with loss of biodiversity, but very few studies have investigated biochemical and physiological alterations that species affected by aquaculture activities undergo.
Carregosa, Vanessa +5 more
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A re‐evaluation of the enriched labile soil organic matter fraction
European Journal of Soil Science, 2000Summary Identifying ‘functional' pools of soil organic matter and understanding their response to tillage remains elusive. We have studied the effect of tillage on the enriched labile fraction, thought to derive from microbes and having an intermediate turnover time. Four soils, each under three regimes, long‐term
J. Six +4 more
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Unique Coevolution of Organic Matter and Selenium Enrichment in Cold Region Mollisols
Environmental Science & TechnologyMollisols enriched with organic matter (OM) and selenium (Se) are a critical resource supporting global food security. Nonetheless, concerns arise as climate change and agricultural practices threaten Mollisol sustainability. Particularly, how the environmental conditions and biogeochemical processes constrain coevolution of OM and Se in Mollisols of ...
Kunfu Pi +6 more
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[Enrichment of organic matter and nitrogen in eroded bedloads].
Ying yong sheng tai xue bao = The journal of applied ecology, 2001Under natural rainfall, the influences of rainfall, slope gradient, tillage and fertilization on the enrichment ratio(ER) of organic matter(OM) and total nitrogen(TN) in eroded bedloads and the relationship between the ER and the composition of eroded bedloads was analyzed.
X, Zhang, M, Shao
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RADIOCARBON ENRICHMENT OF SOIL ORGANIC MATTER FRACTIONS IN NEW ZEALAND SOILS
Soil Science, 1977Soil organic matter was extracted using the classical procedure and fractionated into humin (nonextractable), humic acid, and fulvic acid. The masses of total organic carbon in the whole soil samples and in the fractions, together with their /sup 14/C content and /sup 13/C//sup 12/C ratios, were also determined.
K. M. GOH, J. D. STOUT, T. A. RAFTER
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Biological Agriculture & Horticulture, 1987
ABSTRACT The effect of nitrogen, phosphorus and molasses enrichment on the decomposition of organic matter during composting of ligno-cellulosic waste was studied. The loss of organic matter increased with decrease in C:N ratio of the waste through the addition of inorganic nitrogen but the loss of this added nitrogen was very high when the C:N ratio ...
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ABSTRACT The effect of nitrogen, phosphorus and molasses enrichment on the decomposition of organic matter during composting of ligno-cellulosic waste was studied. The loss of organic matter increased with decrease in C:N ratio of the waste through the addition of inorganic nitrogen but the loss of this added nitrogen was very high when the C:N ratio ...
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