Results 41 to 50 of about 461,590 (157)

Hydrology and oxygen addition drive nutrients, metals, and methylmercury cycling in a hypereutrophic water supply reservoir

Frontiers in Water
Impaired water quality in Mediterranean climate reservoirs is mainly associated with eutrophication and internal nutrient loading. To improve water quality in hypereutrophic Hodges Reservoir, California, United States, a hypolimnetic oxygenation system ...
Naivy Dennise Rodal-Morales, Marc Beutel, Byran Fuhrmann, Byran Fuhrmann, Shelby Defeo, Anne M. Hansen, Thomas Harmon, Sarah Brower, Jeffery Pasek   +8 more
doaj   +1 more source

Responses of an Agricultural Soil Microbiome to Flooding with Seawater after Managed Coastal Realignment

Microorganisms, 2018
Coastal areas have become more prone to flooding with seawater due to climate-change-induced sea-level rise and intensified storm surges. One way to cope with this issue is by “managed coastal realignment”, where low-lying coastal areas are no longer ...
Kamilla S. Sjøgaard, Thomas B. Valdemarsen, Alexander H. Treusch   +2 more
doaj   +1 more source

Newly Recognized Vital Nitrogen Cycle [PDF]

Proceedings of the National Academy of Sciences, 1972
Soil and sea bacteria produce a small amount of nitrous oxide (N 2 O); a small part of this N 2 O is photochemically converted to nitric oxide (NO) in the stratosphere. This process has recently been shown to be the principal source of the active oxides of nitrogen (NO and NO 2
openaire   +3 more sources

Inventories and scenarios of nitrous oxide emissions

Environmental Research Letters, 2014
Effective mitigation for N _2 O emissions, now the third most important anthropogenic greenhouse gas and the largest remaining anthropogenic source of stratospheric ozone depleting substances, requires understanding of the sources and how they may ...
Eric A Davidson, David Kanter
doaj   +1 more source

Photorespiratory nitrogen cycle

Nature, 1978
MOST temperate plants form phosphoglyceric acid as the first stable product of photosynthesis. These plants also photo-respire, that is, during CO2 fixation they simultaneously release CO2 to the atmosphere from the oxidation of an intermediate of the photosynthetic process1,2.
Keys, A. J., Bird, I. F., Cornelius, M. J., Lea, P. J., Wallsgrove, R. M., Miflin, B. J.   +5 more
openaire   +1 more source

Da escassez ao estresse do planeta: um século de mudanças no ciclo do nitrogênio

Química Nova, 2013
Heavy metals and pesticides are usually associated with the main problems humankind has created in the natural environment. However, compounds with characteristics of essential macronutrients are causing serious environmental changes that could intensify,
Gabriel Garcia, Arnaldo Alves Cardoso, Oalas Aparecido Morais dos Santos   +2 more
doaj   +1 more source

Riverine nutrient impact on global ocean nitrogen cycle feedbacks and marine primary production in an Earth system model [PDF]

Biogeosciences
Riverine nutrient export is an important process in marine coastal biogeochemistry and also impacts global marine biology. The nitrogen cycle is a key player here.
M. Tivig, M. Tivig, D. P. Keller, D. P. Keller, A. Oschlies   +4 more
doaj   +1 more source

The Nitrogen Cycle

, 2014
Contains fulltext : 111535.pdf (Publisher’s version ) (Open Access)
Martine A. R. Kox, Mike S. M. Jetten
openaire   +3 more sources

The Impact of Climate Forcing Biases and the Nitrogen Cycle on Land Carbon Balance Projections

Journal of Advances in Modeling Earth Systems
Earth System Models (ESMs) project that the terrestrial carbon sink will continue to grow as atmospheric CO2 increases, but this projection is uncertain due to biases in the simulated climate and how ESMs represent ecosystem processes. In particular, the
Christian Seiler, Sian Kou‐Giesbrecht, Vivek K. Arora, Joe R. Melton   +3 more
doaj   +1 more source

Minimizing the impacts of the ammonia economy on the nitrogen cycle and climate. [PDF]

Proc Natl Acad Sci U S A, 2023
Bertagni MB, Socolow RH, Martirez JMP, Carter EA, Greig C, Ju Y, Lieuwen T, Mueller ME, Sundaresan S, Wang R, Zondlo MA, Porporato A.   +11 more
europepmc   +1 more source