Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kai Hämäläinen"'
Autor:
Kai Hämäläinen, Tatiana Trubnikova, Pertti J. Martikainen, Christina Biasi, Simo Jokinen, Markku Oinonen, Maija E. Marushchak
Publikováno v:
Ecosystems. 17:112-126
Knowledge on soil microbial respiration (SMR) rates and thus soil-related CO2 losses from Arctic soils is vital because of the crucial importance of this ecosystem within the global carbon (C) cycle and climate system. Here, we measured SMR from vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7de93ffbca2a8b347ebaa6f9e4bed4
https://doi.org/10.1007/s10021-013-9710-z
https://doi.org/10.1007/s10021-013-9710-z
Publikováno v:
Biomass and Bioenergy. 42:219-223
The purpose of the study was to compare torrefaction to partial pyrolysis conducted with a fast heat treatment process. Both torrefaction and the fast heat treatment tests were performed in a bubbling fluidized bed reactor. The study investigated the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b286eb4d8dd42fb2155a83f8a8c60f50
https://doi.org/10.1016/j.biombioe.2012.03.008
https://doi.org/10.1016/j.biombioe.2012.03.008
Autor:
Christina Biasi, Markku Oinonen, Simo Jokinen, Niina M. Tavi, Kai Hämäläinen, Högne Jungner, Pertti J. Martikainen, Narasinha J. Shurpali
Publikováno v:
Soil Biology and Biochemistry. 43:2406-2409
We tested here a plant-soil system to separate recent, plant-derived and native, soil-derived carbon in soil respiration. The approach uses a perennial crop cultivated on an organic soil where upper soil layers have been removed as a result of peat e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c8eb2843e8d86327f6e18cf041452d8
https://doi.org/10.1016/j.soilbio.2011.08.003
https://doi.org/10.1016/j.soilbio.2011.08.003
Autor:
Mikko Tuomi, Eloni Sonninen, Peter Spetz, Högne Jungner, Pekka Vanhala, Kai Hämäläinen, Hannu Fritze, Kristiina Karhu, Markku Oinonen, Jari Liski, Veikko Kitunen
Publikováno v:
Ecology. 91:370-376
Feedback to climate warming from the carbon balance of terrestrial ecosystems depends critically on the temperature sensitivity of soil organic carbon (SOC) decomposition. Still, the temperature sensitivity is not known for the majority of the SOC, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cffea424e471738d5d167f5d85e4a574
https://doi.org/10.1890/09-0478.1
https://doi.org/10.1890/09-0478.1
Publikováno v:
Hämäläinen, K, Jungner, H, Antson, O, Räsänen, J, Tormonen, K & Roine, J 2007, ' Measurement of biocarbon in flue gases using 14C ', Radiocarbon, vol. 49, no. 2, pp. 325-330 . https://doi.org/10.1017/S0033822200042259
A preliminary investigation of the biocarbon fraction in carbon dioxide emissions of power plants using both fossil- and biobased fuels is presented. Calculation of the biocarbon fraction is based on radiocarbon content measured in power plant flue g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5df7bcb6d44cce2260532179ed90c62
https://doi.org/10.1017/s0033822200042259
https://doi.org/10.1017/s0033822200042259
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:1117-1119
Within the context of expanding use of biofuels in transport worldwide, a need has emerged to accurately determine biofuel proportions of fuels. In this study, the radiocarbon method by AMS has been used to study the fuel mixtures containing 2%, 5% a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87aca48fdac423abc126da095a388f95
https://doi.org/10.1016/j.nimb.2009.10.113
https://doi.org/10.1016/j.nimb.2009.10.113
Autor:
Högne Jungner, Mikko Tuomi, Hannu Fritze, Kristiina Karhu, Markku Oinonen, Jari Liski, Eloni Sonninen, Peter Spetz, Pekka Vanhala, Kai Hämäläinen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:1067-1069
K. Hamalainen, H. Fritze, H. Jungner, K. arhu, M. Oinonen, E. Sonninen, P. Spetz, M. Tuomi, P. Vanhala, and J. Liski, 'Molecular sieve sampling of CO2 from decomposition of soil organic matter for AMS radiocarbon measurements', Nuclear Instruments an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51690c8fbbcaefe5dd37e6462322aa41
https://doi.org/10.1016/j.nimb.2009.10.099
https://doi.org/10.1016/j.nimb.2009.10.099
Autor:
Antson, Olli, Hongisto, Mikko, Kai, Hämäläinen, Jungner, Högne, Knuuttila, Matti, Roine, Johannes, Räsänen, Jakko, Tormonen, Kauko, Tsupari, Eemeli
Publikováno v:
Antson, O, Hongisto, M, Kai, H, Jungner, H, Knuuttila, M, Roine, J, Räsänen, J, Tormonen, K & Tsupari, E 2007, Biohiilen mittaus savukaasusta hiili14 menetelmällä . in J Jussila (ed.), Ilmastonmuutoksen hillinnän liiketoimintamahdollisuudet : ClimBus-teknologiaohjelman katsaus 2007 . TEKES, Teknologiakatsaus, no. 211 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::c2fb42fd27b6801d4c91666558e8ecb3
https://cris.vtt.fi/en/publications/e42986e1-2e94-4c3f-8329-7c40051f92f2
https://cris.vtt.fi/en/publications/e42986e1-2e94-4c3f-8329-7c40051f92f2
