Results 71 to 80 of about 54,041 (296)

N2O production in the eastern South Atlantic: analysis of N2O stable isotopic and concentration data [PDF]

, 2014
The stable isotopic composition of dissolved nitrous oxide (N2O) is a tracer for the production, transport, and consumption of this greenhouse gas in the ocean.
Nevison, Cynthia, Frame, Caitlin, Karen L. Casciotti, Casciotti, Karen, Deal, Eric, Caitlin H. Frame, Eric Deal, Cynthia D. Nevison   +7 more
core   +1 more source

Food Security Versus Environmental Health: The Nitrogen Dilemma

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Nitrogen is an essential element for plant growth and, consequently, crop production. However, the cycling of nitrogen in the environment can have negative effects. Here, we review the historical development of scientific and public awareness of these effects and the influence this has had on political action to control them.
Henrike Mielenz, Norbert Bischoff, Klaus Butterbach‐Bahl, Uwe Häußermann, Kurt‐Christian Kersebaum, Karin Rather, Burkhard Stever‐Schoo, Reinhard Well, Claas Nendel   +8 more
wiley   +1 more source

Year-round N2O production by benthic NOx reduction in a monomictic south-alpine lake [PDF]

, 2013
Nitrous oxide (N2O) is a potent greenhouse gas, generated through microbial nitrogen (N) turnover processes, such as nitrification, nitrifier denitrification, and denitrification.
Frame, C. H., Lehmann, M. F., C. H. Frame, Freymond, C. V., Wenk, Christine B., C. V. Freymond, Freymond, Chantal V., Wenk, C. B., C. B. Wenk, M. F. Lehmann, Frame, Caitlin H., Lehmann, Moritz Felix   +11 more
core   +2 more sources

Soil Type Controls the Effects of the Nitrification Inhibitor DMPP on Nitrate Leaching and Mineral N Retention Under Simulated Heavy Rainfall

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Nitrate (NO3−) leaching is a major nitrogen (N) loss pathway in agriculture and may increase with more frequent heavy rainfall. Nitrification inhibitors, such as 3,4‐dimethylpyrazole phosphate (DMPP), can reduce these losses, but their effectiveness under frequent heavy rainfall events remains unclear, which limits their targeted ...
Felix Ohmann, Klaus Dittert, Hans‐Werner Olfs   +2 more
wiley   +1 more source

In situ mixing of organic matter decreases hydraulic conductivity of denitrification walls in sand aquifers [PDF]

, 2008
In a previous study, a denitrification wall was constructed in a sand aquifer using sawdust as the carbon substrate. Ground water bypassed around this sawdust wall due to reduced hydraulic conductivity.
Schipper, Louis A., Barkle, Gregory F., Painter, Brett D.M., Burgess, Craig P.   +3 more
core   +1 more source

Microbial communities and functional diversity in seafood

JSFA reports, EarlyView.
Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi, Samuel Ayeh Osei, Grace Afumwaa Boamah, Gertrude Dzifa Mensah   +3 more
wiley   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Virtual Sensing of Nitrite: A Novel Control for Safe Denitrification in Recirculating Aquaculture Systems (RASs)

Fishes
Recirculating aquaculture system (RAS) technology is seen worldwide as a solution for sustainable fish production. However, there are still deficiencies in the process technology imperiling consistent operation and thus economic results.
Anneliese Ernst, Christian Steinbach, Kai Wagner, Uwe Waller   +3 more
doaj   +1 more source

Nitrogen transformation pathways, rates, and isotopic signatures in Lake Lugano [PDF]

, 2014
The consequences of detrimental alterations caused to the natural nitrogen (N) cycle are manifold. To tackle problems, such as eutrophication of coastal marine and lacustrine environments, or increasing emissions of greenhouse gas nitrous oxide (N2O ...
Wenk, Christine B.
core   +1 more source

Denitrification within the sediments and epiphyton of tropical macrophyte stands

, 2021
Excess nitrogen (N) is one of the most widespread and serious pollutants in the environment, but wetlands can reduce N loads, ameliorating its damaging effects downstream.
Buford, Michelle, Ronan, Mike, Farahani, Bahareh Shahrabi, Salinas, Cristian, Waltham, Nathan, Adame, Maria Fernanda, Adame, Maria, Waltham, Nathan J, Burford, Michele, Iram, Naima   +9 more
core   +1 more source