Zobrazeno 1 - 10
of 10
pro vyhledávání: '"M. H. Garnett"'
Autor:
T. Roylands, R. G. Hilton, E. L. McClymont, M. H. Garnett, G. Soulet, S. Klotz, M. Degler, F. Napoleoni, C. Le Bouteiller
Publikováno v:
Earth Surface Dynamics, Vol 12, Pp 271-299 (2024)
Chemical weathering of sedimentary rocks can release carbon dioxide (CO2) and consume oxygen (O2) via the oxidation of petrogenic organic carbon and sulfide minerals. These pathways govern Earth's surface system and climate over geological timescales
Externí odkaz:
https://doaj.org/article/148621ea125044a09980832695b7e067
Autor:
A. Campeau, K. Bishop, N. Amvrosiadi, M. F. Billett, M. H. Garnett, H. Laudon, M. G. Öquist, M. B. Wallin
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
There is a growing consensus that groundwater inflow supplies most of the C load to streams, but the sources and timescales generating this flux are still unknown. Here, the authors demonstrate that soil respiration, derived from current forest carbo
Externí odkaz:
https://doaj.org/article/951075a44aa5426fbfee093c36137f41
Autor:
S. Cook, M. J. Whelan, C. D. Evans, V. Gauci, M. Peacock, M. H. Garnett, L. K. Kho, Y. A. Teh, S. E. Page
Publikováno v:
Biogeosciences, Vol 15, Pp 7435-7450 (2018)
Intact tropical peatlands are dense long-term stores of carbon. However, the future security of these ecosystems is at risk from land conversion and extensive peatland drainage. This can enhance peat oxidation and convert long-term carbon sinks in
Externí odkaz:
https://doaj.org/article/a735ed05fe3048f68b6585396396f4a6
Publikováno v:
Biogeosciences, Vol 15, Pp 4087-4102 (2018)
Oxidative weathering of sedimentary rocks can release carbon dioxide (CO2) to the atmosphere and is an important natural CO2 emission. Two mechanisms operate – the oxidation of sedimentary organic matter and the dissolution of carbonate minerals
Externí odkaz:
https://doaj.org/article/5e450bf29ee444169735bce2edea1c73
Publikováno v:
Biogeosciences, Vol 11, Iss 13, Pp 3635-3645 (2014)
Knowing the rate at which carbon is cycled is crucial to understanding the dynamics of carbon transfer pathways. Recent technical developments now support measurement of the 14C age of evaded CO2 from fluvial systems, which provides an important "fin
Externí odkaz:
https://doaj.org/article/fa93195170a342a5be75adf680e91105
Publikováno v:
Radiocarbon. :1-4
Radiocarbon (14C) measurements undertaken by the NERC Radiocarbon Laboratory using accelerator mass spectrometry (AMS) are now freely available on a new online database. The data presented covers measurement of the wide range of sample types that are
Autor:
S. L. Williams, E. Garrett, P. T. Moss, S. Dangendorf, F. D. Hibbert, N. R. Atkinson, V. Pashley, I. L. Millar, M. H. Garnett, A. Zawadzki, W. R. Gehrels
Publikováno v:
Journal of Quaternary Science, 2023 [Peer Reviewed Journal]
Rates of global and regional sea-level rise between ~1850 and 1950 were high compared to those in preceding centuries. The cause of this sea-level acceleration remains uncertain, but it appears to be pronounced in a small set of relative sea-level pr
Autor:
J F Dean, Y van der Velde, M H Garnett, K J Dinsmore, R Baxter, J S Lessels, P Smith, L E Street, J-A Subke, D Tetzlaff, I Washbourne, P A Wookey, M F Billett
Publikováno v:
Environmental Research Letters, Vol 13, Iss 3, p 034024 (2018)
Mobilization of soil/sediment organic carbon into inland waters constitutes a substantial, but poorly-constrained, component of the global carbon cycle. Radiocarbon ( ^14 C) analysis has proven a valuable tool in tracing the sources and fate of mobil
Externí odkaz:
https://doaj.org/article/de3aa43c018441e482fae1165a44a44c
Autor:
M H Garnett, C Murray
Publikováno v:
Radiocarbon. 55:410-415
Cartridges containing a zeolite molecular sieve are used for the field collection of CO2 from a variety of environments (e.g. atmosphere, soil respiration, evasion from surface waters) for accelerator mass spectrometry (AMS) radiocarbon analysis by t
Publikováno v:
Rapid communications in mass spectrometry : RCM. 24(12)
Studying ecosystem processes in the context of carbon cycling and climate change has never been more important. Stable carbon isotope studies of gas exchange within terrestrial ecosystems are commonly undertaken to determine sources and rates of carb