Results 21 to 30 of about 1,110,939 (298)

Nitrification amplifies the decreasing trends of atmospheric oxygen and implies a larger land carbon uptake [PDF]

, 2007
[1] Atmospheric O-2 trend measurements are used to partition global oceanic and land biotic carbon sinks on a multiannual basis. The underlying principle is that a terrestrial uptake or release of CO2 is accompanied by an opposite flux of O-2.
Bopp, L, Ciais, P, Manning, AC, Reichstein, M, Zaehle, S   +4 more
core   +2 more sources

Changes in the photosynthetic performance, the activity of enzymes of nitrogen metabolism, and proline content in the leaves of wheat plants after exposure to low CO2 concentration

Photosynthetica, 2023
The changes in photosynthetic activity, as well as the activity of nitrogen-metabolism enzymes, the intensity of lipid peroxidation, and proline content were studied in Triticum aestivum L.
A. IVANOV, A. KOSOBRYUKHOV, V. KRESLAVSKI, S.I. ALLAKHVERDIEV   +3 more
doaj   +1 more source

Equilibration of the terrestrial water, nitrogen, and carbon cycles [PDF]

, 1997
Recent advances in biologically based ecosystem models of the coupled terrestrial, hydrological, carbon, and nutrient cycles have provided new perspectives on the terrestrial biosphere’s behavior globally, over a range of time scales.
Braswell, Rob, Parton, W J, Schimel, David S   +2 more
core   +2 more sources

The microbial nitrogen cycle [PDF]

Environmental Microbiology, 2008
Summary This special issue highlights several recent discoveries in the microbial nitrogen cycle including the diversity of nitrogen‐fixing bacteria in special habitats, distribution and contribution of aerobic ammonium oxidation by bacteria and crenarchaea in various aquatic and terrestrial ecosystems, regulation of metabolism in ...
openaire   +2 more sources

Urea Amendment Decreases Microbial Diversity and Selects for Specific Nitrifying Strains in Eight Contrasting Agricultural Soils

Frontiers in Microbiology, 2018
Application of nitrogen (N) fertilizers, predominantly as urea, is a major source of reactive N in the environment, with wide ranging effects including increased greenhouse gas accumulation in the atmosphere and aquatic eutrophication. The soil microbial
Christopher Staley, Florence Breuillin-Sessoms, Ping Wang, Thomas Kaiser, Rodney T. Venterea, Rodney T. Venterea, Michael J. Sadowsky, Michael J. Sadowsky, Michael J. Sadowsky   +8 more
doaj   +1 more source

Moderate Nitrogen Reduction Increases Nitrogen Use Efficiency and Positively Affects Microbial Communities in Agricultural Soils

Agriculture, 2023
Excessive nitrogen fertilizer usage in agricultural often leads to negative ecological and production gains. Alterations in the physical and chemical properties and microbial community structure of agricultural soils are both the cause and consequence of
Jianghua Tang, Lili Su, Yanfei Fang, Chen Wang, Linyi Meng, Jiayong Wang, Junyao Zhang, Wenxiu Xu   +7 more
doaj   +1 more source

EarthN: A new Earth System Nitrogen Model [PDF]

, 2018
The amount of nitrogen in the atmosphere, oceans, crust, and mantle have important ramifications for Earth's biologic and geologic history. Despite this importance, the history and cycling of nitrogen in the Earth system is poorly constrained over time ...
Condie K. C., Delwiche C., Garcia H., German C., Gruber N., Halama R., Haynes W., Rudnick R., Winter J. D.   +8 more
core   +3 more sources

How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water

Frontiers in Microbiology, 2022
Nutrient pollution in the coastal environment has been accelerated by progressively intensifying aquaculture activities. Excessive nutrients can lead to coastal eutrophication with serious economic and ecological consequences.
Linus Shing Him Lo, Linus Shing Him Lo, Zhimeng Xu, Zhimeng Xu, Sangwook Scott Lee, Sangwook Scott Lee, Wing Keung Lau, Jian-Wen Qiu, Jian-Wen Qiu, Hongbin Liu, Hongbin Liu, Pei-Yuan Qian, Pei-Yuan Qian, Jinping Cheng, Jinping Cheng   +14 more
doaj   +1 more source

Rooted in richness: unearthing the economic and ecological synergy of crop rotation

Frontiers in Sustainable Food Systems, 2023
IntroductionThis study deals with agricultural practices and their implications on soil health and crop yield using economic optimization. Specifically, the research focuses on the impact of different crops, such as canola, wheat, and meadow clover, on ...
Jaroslav Cerveny, Petr Prochazka, Jana Soukupova, Jana Soukupova, Roman Svoboda, Lucie Severova, Lubos Smutka, Inna Cabelkova, Marek Dvorak   +8 more
doaj   +1 more source

Global Distribution of Anaerobic Ammonia Oxidation (Anammox) Bacteria – Field Surveys in Wetland, Dryland, Groundwater Aquifer and Snow

Frontiers in Microbiology, 2019
The discovery of anaerobic ammonia oxidation (anammox) expanded our knowledge on the microbial nitrogen cycle. Previous studies report that anammox bacteria are distributed in a wide range of habitats and plays significant roles in the global nitrogen ...
Yu Wang, Yu Wang, Liya Xu, Shanyun Wang, Fei Ye, Guibing Zhu   +5 more
doaj   +1 more source