Zobrazeno 1 - 10
of 20
pro vyhledávání: '"M. F. Lehman"'
Autor:
O. A. Sherwood, S. H. Davin, N. Lehmann, C. Buchwald, E. N. Edinger, M. F. Lehmann, M. Kienast
Publikováno v:
Biogeosciences, Vol 18, Pp 4491-4510 (2021)
The flow of Pacific water to the North Atlantic exerts a globally significant control on nutrient balances between the two ocean basins and strongly influences biological productivity in the northwest Atlantic. Nutrient ratios of nitrate (NO3-) versu
Externí odkaz:
https://doaj.org/article/2509a9a1fbb043078d4d4f03bf5a599b
Autor:
Y. Chang, Y.-L. Zhang, S. Kawichai, Q. Wang, M. Van Damme, L. Clarisse, T. Prapamontol, M. F. Lehmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 7187-7198 (2021)
Ammonia (NH3) is an important agent involved in atmospheric chemistry and nitrogen cycling. Current estimates of NH3 emissions from biomass burning (BB) differ by more than a factor of 2, impeding a reliable assessment of their environmental conseque
Externí odkaz:
https://doaj.org/article/dc56fab76344430fb5a86c68d087ccd0
Publikováno v:
Biogeosciences, Vol 18, Pp 3087-3101 (2021)
Small boreal lakes are known to contribute significantly to global CH4 emissions. Lake Lovojärvi is a eutrophic lake in southern Finland with bottom water CH4 concentrations up to 2 mM. However, the surface water concentration, and thus the diffusiv
Externí odkaz:
https://doaj.org/article/6528e21892c44004b08bd474f47b5596
Autor:
Wendy D. Smith, Claude H. Yoder, Beth L. Buckwalter, C. D. Jun. Schaeffer, K. J. Sullivan, M. F. Lehman
Publikováno v:
ChemInform. 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc74eeb9b4f912f6ca33a7b7dab4509d
https://doi.org/10.1002/chin.199544028
https://doi.org/10.1002/chin.199544028
Publikováno v:
Biogeosciences, Vol 17, Pp 4355-4374 (2020)
Anaerobic nitrate-dependent Fe(II) oxidation (NDFeO) is widespread in various aquatic environments and plays a major role in iron and nitrogen redox dynamics. However, evidence for truly enzymatic, autotrophic NDFeO remains limited, with alternative
Externí odkaz:
https://doaj.org/article/2dd4e56227f9421d95fc87c1bbf9de8f
Publikováno v:
Biogeosciences, Vol 16, Pp 4705-4718 (2019)
Lacustrine sediments are important sites of fixed-nitrogen (N) elimination through the reduction of nitrate to N2 by denitrifying bacteria, and they are thus critical for the mitigation of anthropogenic loading of fixed N in lakes. In contrast, dissi
Externí odkaz:
https://doaj.org/article/fdd8bc9dd36f4d229e1ab71751ce0a22
Autor:
Y. Chang, Y.-L. Zhang, J. Li, C. Tian, L. Song, X. Zhai, W. Zhang, T. Huang, Y.-C. Lin, C. Zhu, Y. Fang, M. F. Lehmann, J. Chen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 12221-12234 (2019)
Predicting tropospheric cloud formation and subsequent nutrient deposition relies on understanding the sources and processes affecting aerosol constituents of the atmosphere that are preserved in cloud water. However, this challenge is difficult to a
Externí odkaz:
https://doaj.org/article/e072311178d5429aa8a496033546145a
Autor:
H. Yao, W.-L. Hong, G. Panieri, S. Sauer, M. E. Torres, M. F. Lehmann, F. Gründger, H. Niemann
Publikováno v:
Biogeosciences, Vol 16, Pp 2221-2232 (2019)
We report a rare observation of a mini-fracture in near-surface sediments (30 cm below the seafloor) visualized using a rotational scanning X-ray of a core recovered from the Lomvi pockmark, Vestnesa Ridge, west of Svalbard (1200 m water depth).
Externí odkaz:
https://doaj.org/article/74816df4d4b3456482851b09744e2a3b
Publikováno v:
Biogeosciences, Vol 15, Pp 7043-7057 (2018)
Semi-terrestrial soils such as floodplain soils are considered potential hot spots of nitrous oxide (N2O) emissions. Microhabitats in the soil – such as within and outside of aggregates, in the detritusphere, and/or in the rhizosphere – are consi
Externí odkaz:
https://doaj.org/article/e03a754e111447219b3a7f74350600a3
Autor:
Y. Chang, Y. Zhang, C. Tian, S. Zhang, X. Ma, F. Cao, X. Liu, W. Zhang, T. Kuhn, M. F. Lehmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 11647-11661 (2018)
Atmospheric fine-particle (PM2.5) pollution is frequently associated with the formation of particulate nitrate (pNO3−), the end product of the oxidation of NOx gases (NO + NO2) in the upper troposphere. The application of stable nitrogen (N
Externí odkaz:
https://doaj.org/article/98ca6d5d682f4b8fb90cf3488d65bd99