Výsledky vyhledávání - "Jari T. Huttunen"

Methane dynamics in different boreal lake types

Autor: Sari Juutinen, Pertti J. Martikainen, Miitta Rantakari, Jari T. Huttunen, Jouko Silvola, Jukka Alm, Pirkko Kortelainen, Tuula Larmola

Publikováno v: Biogeosciences, Vol 6, Iss 2, Pp 209-223 (2009)
Scopus-Elsevier

This study explores the variability in concentrations of dissolved CH4 and annual flux estimates in the pelagic zone in a statistically defined sample of 207 lakes in Finland. The lakes were situated in the boreal zone, in an area where the mean annu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c1bc307b1f3a6223c4474d13e70c1f1
https://www.biogeosciences.net/6/209/2009/

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Greenhouse gas balances of managed peatlands in the Nordic countries – present knowledge and gaps

Autor: Jari T. Huttunen, J. Guðmundsson, Bjarni D. Sigurdsson, Marja Maljanen, Hlynur Óskarsson, Pertti J. Martikainen

Publikováno v: Biogeosciences, Vol 7, Iss 9, Pp 2711-2738 (2010)

This article provides an overview of the effects of land-use on the fluxes of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) and from peatlands in the Nordic countries based on the field data from about 100 studies. In addition, this rev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::632c8ced4a3e8a5bd1192f243462bc4b
https://www.biogeosciences.net/7/2711/2010/

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Fluxes of nitrous oxide and methane on an abandoned peat extraction site: Effect of reed canary grass cultivation

Autor: Jari T. Huttunen, Niina M. Tavi, Niina Hyvönen, Maija E. Repo, Pertti J. Martikainen, Narasinha J. Shurpali

Publikováno v: Bioresource Technology. 100:4723-4730

Drained organic soils are among the most risky soil types as far as their greenhouse gas emissions are considered. Reed canary grass (RCG) is a potential bioenergy crop in the boreal region, but the atmospheric impact of its cultivation is unknown. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::016c31fcb66ff7ba9195131e26903d03
https://doi.org/10.1016/j.biortech.2009.04.043

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Cultivation of a perennial grass for bioenergy on a boreal organic soil - carbon sink or source?

Autor: Jari T. Huttunen, Robert Clement, Narasinha J. Shurpali, Niina Hyvönen, Christina Biasi, Hannu Nykänen, Pertti J. Martikainen, Markus Reichstein

Publikováno v: GCB Bioenergy. 1:35-50

The area under the cultivation of perennial bioenergy crops on organic soils in the northern countries is fast increasing. To understand the impact of reed canary grass (RCG, Phalaris arundinaceae L.) cultivation on the carbon dioxide (CO2) balance o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c435ceb11dc6df292092efb5f4b9b4ea
https://doi.org/10.1111/j.1757-1707.2009.01003.x

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Direct experimental evidence for the contribution of lime to CO2 release from managed peat soil

Autor: Jari T. Huttunen, Narasinha J. Shurpali, Maija E. Repo, Saara E. Lind, Pertti J. Martikainen, Christina Biasi, Niina M. Pekkarinen, Niina Hyvönen

Publikováno v: Soil Biology and Biochemistry. 40:2660-2669

Liming is a common management practice used to achieve optimum pH for plant growth in agricultural soils. Addition of lime to the soil, however, may cause CO2 release when the carbonates in lime dissolve in water. Although lime may thereby constitute

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1decc71de48a451f67c79bcfec12da02
https://doi.org/10.1016/j.soilbio.2008.07.011

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Sediment respiration and lake trophic state are important predictors of large CO2 evasion from small boreal lakes

Autor: Tuula Larmola, Pirkko Kortelainen, Miitta Rantakari, Jukka Alm, Jari T. Huttunen, Tuija Mattsson, Jouko Silvola, Pertti J. Martikainen, Sari Juutinen

Publikováno v: Global Change Biology. 12:1554-1567

We show that sediment respiration is one of the key factors contributing to the high CO2 supersaturation in and evasion from Finnish lakes, and evidently also over large areas in the boreal landscape, where the majority of the lakes are small and sha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d25db0762e788a753149cc1fd202cd59
https://doi.org/10.1111/j.1365-2486.2006.01167.x

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Temporal and seasonal changes in greenhouse gas emissions from a constructed wetland purifying peat mining runoff waters

Autor: Satu Maaria Karjalainen, Hannu Nykänen, Jari T. Huttunen, Anu Liikanen, Pertti J. Martikainen, Kaisa Heikkinen, Tero Väisänen

Publikováno v: Ecological Engineering. 26:241-251

Constructed wetlands (CW), widely used to remove nutrients from runoff waters, transform some of the carbon and nitrogen they receive into greenhouse gases, carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O), and may therefore have ad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::364cecb5d055a69f74f2603fac6e83f6
https://doi.org/10.1016/j.ecoleng.2005.10.005

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Long-term effects of boreal reservoirs on the landscape-atmosphere N2O exchange

Autor: Pertti J. Martikainen, Jari T. Huttunen

Publikováno v: SIL Proceedings, 1922-2010. 29:607-611

(2005). Long-term effects of boreal reservoirs on the landscape-atmosphere N2O exchange. SIL Proceedings, 1922-2010: Vol. 29, No. 2, pp. 607-611.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c699295448ab565c9410a8b3f5f0f3a9
https://doi.org/10.1080/03680770.2005.11902750

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Methane (CH4 ) release from littoral wetlands of Boreal lakes during an extended flooding period

Autor: Micaela Morero, Jari T. Huttunen, Pertti J. Martikainen, Sanna Saarnio, Jouko Silvola, Jukka Alm, Sari Juutinen, Tuula Larmola

Publikováno v: Global Change Biology. 9:413-424

Lake littoral zones have a transitional nature and dynamic conditions, which are reflected in their CH4 emissions. Thus, detailed studies are needed to assess the littoral CH4 emissions in a regional scale. In this study, CH4 fluxes were followed dur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5bcabcba4ae97fde5f538d3c1bb3c60b
https://doi.org/10.1046/j.1365-2486.2003.00595.x

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