Results 41 to 50 of about 338,113 (255)

Past, Present, and Future Atmospheric Nitrogen Deposition

Journal of the Atmospheric Sciences, 2016
Abstract Reactive nitrogen emissions into the atmosphere are increasing as a result of human activities, affecting nitrogen deposition to the surface and impacting the productivity of terrestrial and marine ecosystems. An atmospheric chemistry–transport model [Tracer Model 4 of the Environmental Chemical Processes Laboratory (TM4-ECPL ...
Kanakidou, Maria, Myriokefalitakis, Stelios, Daskalakis, Nikos, Fanourgakis, G., Nenes, Athanasios, Baker, Alexander, Tsigaridis, Kostas, Mihalopoulos, Nikos   +7 more
openaire   +4 more sources

Atmospheric nitrogen deposition: A review of quantification methods and its spatial pattern derived from the global monitoring networks

Ecotoxicology and Environmental Safety, 2021
Atmospheric nitrogen (N) deposition is a vital component of the global N cycle. Excessive N deposition on the Earth’s surface has adverse impacts on ecosystems and humans.
Qi Zhang, Yanan Li, Mengru Wang, Kai Wang, Fanlei Meng, Lei Liu, Yuanhong Zhao, Lin Ma, Qichao Zhu, Wen Xu, Fusuo Zhang   +10 more
doaj   +1 more source

Effects of nitrogen deposition on the rhizosphere nitrogen-fixing bacterial community structure and assembly mechanisms in Camellia oleifera plantations

Frontiers in Microbiology
Increased nitrogen deposition is a key feature of global climate change, however, its effects on the structure and assembling mechanisms of the nitrogen-fixing bacteria present at the root surface remain to be elucidated.
Caixia Liu, Caixia Liu, Zhilong He, Zhilong He, Yongzhong Chen, Yongzhong Chen, Yanming Xu, Yanming Xu, Wei Tang, Wei Tang, Longsheng Chen, Longsheng Chen   +11 more
doaj   +1 more source

Nitrogen deposition and its impact on forest ecosystems in the Czech Republic - change in soil chemistry and ground vegetation

iForest - Biogeosciences and Forestry, 2017
A repeated soil survey (1995 and 2006) on 66 ICP Forests pair plots in the Czech Republic revealed a significant relationship between modeled nitrogen deposition and nitrogen concentration in the soil.
Novotný R, Buriánek V, Šrámek V, Hunová I, Skorepová I, Zapletal M, Lomský B   +6 more
doaj   +1 more source

Global assessment of nitrogen deposition effects on terrestrial plant diversity : a synthesis [PDF]

, 2009
Atmospheric nitrogen (N) deposition is it recognized threat to plant diversity ill temperate and northern parts of Europe and North America. This paper assesses evidence from field experiments for N deposition effects and thresholds for terrestrial plant
Alkemade, R., Ashmore, M., Bobbink, R., Bustamante, M., Cinderby, S., Davidson, E., De Vries, W., Dentener, F., Emmett, B., Erisman, J. -W., Fenn, M., Galloway, J., Gilliam, F., Hicks, K., Nordin, A., Pardo, L., Spranger, T.   +16 more
core   +7 more sources

Dry deposition of reduced nitrogen [PDF]

Tellus B: Chemical and Physical Meteorology, 1994
The paper reviews the results of measurements of ammonia (NH3) exchange and considers the application of this information in approaches to modelling atmospheric NH3 inputs to ecosystems. Ammonia dry deposition is seen to be highly dependent on land management and the magnitude of agricultural nitrogen inputs.
SUTTON, M. A., ASMAN, W. A. H., SCHJØRRING, J. K.   +2 more
openaire   +2 more sources

Shifts in nitrogen deposition across an urban-rural-forest gradient

Earth Critical Zone
Atmospheric nitrogen deposition (N) significantly influences ecosystem structure and biodiversity conservation, and is largely driven by anthropogenic activities. This study investigated the effects of anthropogenic impact on nitrogen deposition across a
Yueqiang He, Yuanyuan Chen, Jiang Liu, Rong Huang, Ting Lan, Xuesong Gao, Ouping Deng   +6 more
doaj   +1 more source

Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway [PDF]

, 2001
Elevated carbon dioxide levels, caused by anthropogenic emissions of carbon dioxide to the atmosphere, and higher temperature may lead to increased plant growth and uptake to nitrogen, but increased temperature may lead to increased nitrogen ...
Kros, H., Mol-Dijkstra, J.P.
core   +2 more sources

Time resolved measurement of film growth during reactive high power pulsed magnetron sputtering (HIPIMS) of titanium nitride [PDF]

, 2013
The growth rate during reactive high power pulsed magnetron sputtering (HIPIMS) of titanium nitride is measured with a temporal resolution of up to 25 us using a rotating shutter concept. According to that concept a 200 um slit is rotated in front of the
Benedikt, Jan, Maszl, Christian, Mitschker, Felix, Prenzel, Marina, von Keudell, Achim   +4 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source