Dairy cow excreta patches change the boreal grass swards from sink to source of methane

Autor: Marja Elisa Maljanen, Perttu Virkajärvi, Pertti J. Martikainen

Publikováno v: Agricultural and Food Science, Vol 21, Iss 2 (2012)

We studied methane (CH4) flux rates from experimental excreta patches on a dairy pasture with a chamber technique during snow free seasons and with a gas gradient technique during winter from timothy-meadow fescue sward with mineral N fertilization (

Externí odkaz: https://doaj.org/article/069785d347c04e9e82f65ebcd92d5994

A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils—changing the paradigm

Autor: Elisabeth Ramm, Chunyan Liu, Per Ambus, Klaus Butterbach-Bahl, Bin Hu, Pertti J Martikainen, Maija E Marushchak, Carsten W Mueller, Heinz Rennenberg, Michael Schloter, Henri M P Siljanen, Carolina Voigt, Christian Werner, Christina Biasi, Michael Dannenmann

Publikováno v: Environmental Research Letters, Vol 17, Iss 1, p 013004 (2022)

The paradigm that permafrost-affected soils show restricted mineral nitrogen (N) cycling in favor of organic N compounds is based on the observation that net N mineralization rates in these cold climates are negligible. However, we find here that thi

Externí odkaz: https://doaj.org/article/260f0ab89038450986f38e3b0b96e970

Sources of nitrous oxide and fate of mineral nitrogen in sub-Arctic permafrost peat soils

Autor: Alexander Novakovskiy, Tibisay Pérez, Christina Biasi, Tobias Rütting, Tatiana Trubnikova, Maija E. Marushchak, Dmitry Kaverin, Pertti J. Martikainen, J. Gil, Elizabeth M. Baggs

Publikováno v: Gil, J, Marushchak, M E, Rütting, T, Baggs, L, Pérez, T, Novakovskiy, A, Trubnikova, T, Kaverin, D, Martikainen, P J & Biasi, C 2022, ' Sources of nitrous oxide and fate of mineral nitrogen in sub-Arctic permafrost peat soils ', Biogeosciences, vol. 19, pp. 2683-2698 . https://doi.org/10.5194/bg-19-2683-2022

Nitrous oxide (N2O) emissions from permafrost-affected terrestrial ecosystems have received little attention, largely because they have been thought to be negligible. Recent studies, however, have shown that there are habitats in subarctic tundra emi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cc194cbfac4e82b4bdf64d7dcbcb7e9
https://hdl.handle.net/20.500.11820/90f7b118-b0c0-4dae-8e6f-3b86082d396b

Atmospheric impact of nitrous oxide uptake by boreal forest soils can be comparable to that of methane uptake

Autor: Carolina Voigt, Nina Welti, Christina Biasi, Pertti J. Martikainen, Juha Heiskanen, Henri M.P. Siljanen

Publikováno v: Plant and Soil. 454:121-138

Aims Environmental factors controlling nitrous oxide (N2O) uptake in forest soils are poorly known, and the atmospheric impact of the forest N2O sink is not well constrained compared to that of methane (CH4). Methods We compared nitrous oxide (N2O) a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5093cf48e1a9fb1dbb464420b2aded69
https://doi.org/10.1007/s11104-020-04638-6

Half-a-century effects of a slow-release nitrogen fertilizer, ureaformaldehyde, on stand growth and soil processes in a Scots pine stand

Autor: Aino Smolander, Pertti J. Martikainen, Helena M. Henttonen

Publikováno v: Forest Ecology and Management. 519:120320

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16547478212a74d33e96f198d4484202
https://doi.org/10.1016/j.foreco.2022.120320