Results 21 to 30 of about 3,175 (213)

Characteristics and Influencing Factors of Soil CH4 and N2O Fluxes in Typical Broad-leaved Forests in the Yangtze River Delta Region, China

Shuitu Baochi Xuebao
[Objective] The forest coverage rate in the Yangtze River Delta region reaches 33.4%, and the underlying surface soil may have an important impact on the regional greenhouse gas budget.
JIA Qinqi, XU Fei, CHEN Bingjiang, LU Yanran, CHEN Lihan, HU Jiahao, GUO Na, FANG Shuangxi   +7 more
doaj   +1 more source

Spatial variability of nitrous oxide in the Minho and Lima estuaries (Portugal)

Scientia Marina, 2017
Nitrous oxide (N2O) is a potent long-lived greenhouse gas and estuaries represent potentially important sources of this biogas to the atmosphere. In this work, we analyse the first N2O data obtained in the Minho and Lima estuaries, and the processes and ...
Célia Gonçalves, Maria José Brogueira
doaj   +1 more source

Distributions, sources, and air-sea fluxes of nitrous oxide in Bohai Bay, China

Frontiers in Marine Science, 2023
IntroductionPolluted bays are one of the critical areas for the production and emissions of marine nitrous oxide (N2O), which has a strong effect on global warming and plays a critical role in stratospheric ozone depletion.MethodsIn 2020, the ...
Zhi Wang, Zhi Wang, Ting Gu, Ting Gu, Ting Gu, Yujian Wen, Yujian Wen, XuDong Cui, XuDong Cui, Dai Jia, Dai Jia, Jun Sun, Jun Sun, Jun Sun   +13 more
doaj   +1 more source

Nitrous Oxide Emissions from Smallholders’ Cropping Systems in Sub-Saharan Africa

Advances in Agriculture, 2021
Increased concentration of atmospheric nitrous oxide (N2O), a potent greenhouse gas (GHG), is of great concern due to its impact on ozone layer depletion leading to climate change. Ozone layer depletion allows penetration of ultraviolet radiations, which
Shaankua E. Lemarpe, Collins M. Musafiri, Joseph M. Macharia, Milka N. Kiboi, Onesmus K. Ng’etich, Chris A. Shisanya, Jeremiah Okeyo, Elizabeth A. Okwuosa, Felix K. Ngetich   +8 more
doaj   +1 more source

The Optimization of Hypobromite Oxidation Combined with Sodium Azide Chemical Methods and Determination of the Nitrogen Isotopic Composition of Dissolved Ammonium in Seawater

Journal of Isotopes
Ammonium is a key dissolved inorganic nitrogen (DIN) in the biogeochemical cycle of nitrogen in the ocean. Depending on the environment，the 15N natural abundance (δ15Nair ) of NH4+ can provide insights into N sources and mechanisms of N transformations ...
Haili YANG
doaj   +1 more source

Soil N2O emissions and N2O/(N2O+N2) ratio as affected by different fertilization practices and soil moisture

Biology and Fertility of Soils, 2008
The objective of this work was to evaluate the effect of the chemical nature and application frequency of N fertilizers at different moisture contents on soil N2O emissions and N2O/(N2O+N2) ratio. The research was based on five fertilization treatments: unfertilized control, a single application of 80 kg ha−1 N-urea, five split applications of 16 kg ha−
Ciarlo, Esteban Ariel, Conti, Marta Elvira, Bartoloni, N., Rubio, Gerardo   +3 more
openaire   +2 more sources

Extreme emission of N2O from tropical wetland soil (Pantanal, South America)

Frontiers in Microbiology, 2013
Nitrous oxide (N2O) is an important greenhouse gas and ozone depleter, but the global budget of N2O remains unbalanced. Currently, ~25% of the global N2O emission is ascribed to uncultivated tropical soils, but the exact locations and controlling ...
Lars eLiengaard, Lars Peter eNielsen, Niels Peter eRevsbech, Anders ePriemé, Bo eElberling, Alex eEnrich-Prast, Michael eKühl, Michael eKühl, Michael eKühl   +8 more
doaj   +1 more source

Inland Waters can Act as Nitrous Oxide Sinks: Observation and Modeling Reveal that Nitrous Oxide Undersaturation May Partially Offset Emissions

Geophysical Research Letters, 2023
Inland waters are significant, yet highly uncertain, natural sources of nitrous oxide (N2O). Many emission models assume that N2O is only emitted from freshwaters, and that N2O sink behavior is negligible. However, observational studies have reported N2O
K. S. Aho, T. Maavara, K. M. Cawley, P. A. Raymond   +3 more
doaj   +1 more source

Carbon‐Confined Fe3C/Fe3N Janus Interfaces for Selective Nitric Oxide‐to‐Ammonia Electroreduction

Angewandte Chemie, EarlyView.
A defect‐rich, graphitic‐carbon‐confined Fe3C/Fe3N Janus catalyst integrates NO transport, adsorption/activation, and interfacial H supply for efficient nitric oxide electroreduction to ammonia. Built from earth‐abundant elements, this architecture enables high‐yield and high‐efficiency NH3 synthesis while valorizing industrial NO emissions.
Jialing Song, Ziqi Wei, Haotian Huang, Lupeng Han, Biyi Huang, Evangelina Pensa, Sam Fong Yau Li, Eslam Hamed, Fun Man Fung, Emiliano Cortés, Dengsong Zhang   +10 more
wiley   +2 more sources

Marine N2O cycling from high spatial resolution concentration, stable isotopic and isotopomer measurements along a meridional transect in the eastern Pacific Ocean

Frontiers in Marine Science, 2023
Nitrous oxide (N2O) is a potent greenhouse gas and ozone depleting substance, with the ocean accounting for about one third of global emissions. In marine environments, a significant amount of N2O is produced by biological processes in Oxygen Deficient ...
Annie Bourbonnais, Bonnie X. Chang, Rolf E. Sonnerup, Scott C. Doney, Mark A. Altabet   +4 more
doaj   +1 more source