Results 1 to 10 of about 2,662,632 (251)

Fixed-Nitrogen Loss Associated with Sinking Zooplankton Carcasses in a Coastal Oxygen Minimum Zone (Golfo Dulce, Costa Rica)

Frontiers in Marine Science, 2017
Oxygen minimum zones (OMZs) in the ocean are of key importance for pelagic fixed-nitrogen loss (N-loss) through microbial denitrification and anaerobic ammonium oxidation (anammox). Recent studies document that zooplankton is surprisingly abundant in and
Peter Stief, Ann Sofie B. Lundgaard, Álvaro Morales-Ramírez, Bo Thamdrup, Ronnie N. Glud, Ronnie N. Glud, Ronnie N. Glud   +6 more
doaj   +1 more source

Metabolic Network Analysis Reveals Human Impact on Urban Nitrogen Cycles

Land
Human interactions have led to the emergence of a higher complexity of urban metabolic networks; hence, traditional natural- or agriculture-oriented biogeochemical models might not be transferred well to urban environments.
Yong Min, Hong Li, Ying Ge, Jie Chang
doaj   +1 more source

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

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

The Nitrogen Cycle in Nature [PDF]

Nature, 1949
G R, CLEMO, G A, SWAN
openaire   +2 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

Effects of Differentiation Plasmodiophora brassicae Physiological Races on the Rhizosphere Microbial Community Structure of Oilseed Rape

Microorganisms
Clubroot caused by Plasmodiophora brassicae is a devastating soil-borne disease of oilseed rape, and physiological race differentiation of the pathogen greatly hinders disease control. The differential regulatory mechanisms of different P.
Zijin Hu, Zhongmei Zhang, Xiaoqin Huang, Yaoying Yu, Yue Deng, Pei Song, Yong Liu, Lei Zhang, Xiaoxiang Yang   +8 more
doaj   +1 more source

Research on N-bearing micro-nanoparticles in the earth’s deep interior: new forms of existence and migration in the nitrogen cycle

Frontiers in Earth Science
Nitrogen (N) is vital for life and widely distributed in Earth’s crust, mantle, and core. Current knowledge is largely limited to surficial biological N cycling, with poorly constrained deep geological cycling and its carrier forms.
Yunfeng Zhang, Yunfeng Zhang, Shanming Wei, Shanming Wei, Huijuan Wang, Xiaobo Tan, Xiaobo Tan, Xubo Man, Xubo Man, Chenkai Zhang, Chenkai Zhang, Jiaxin Dong, Qiang Wang, Yaru Zhao, Benyu Bo, Rui Liu   +15 more
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Optimizing nitrogen use efficiency in forest plantations: mechanistic insights from Arabidopsis, crops, and natural forestry ecosystems

Forestry Research
Forest plantations, such as poplar and eucalyptus, exhibit high nitrogen requirements that are vital for growth, biomass accumulation, and the production of high-quality timber.
Debin Qin, Ruqian Wu, Linlin Niu, Bo Jiang, Yiwei Li, Guohua Chai, Jie Luo, Xinmin An   +7 more
doaj   +1 more source