Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Paavo Ojanen"'
Autor:
Aleksi Lehtonen, Kyle Eyvindson, Kari Härkönen, Kersti Leppä, Aura Salmivaara, Mikko Peltoniemi, Olli Salminen, Sakari Sarkkola, Samuli Launiainen, Paavo Ojanen, Minna Räty, Raisa Mäkipää
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Land-based mitigation measures are needed to achieve climate targets. One option is the mitigation of currently high greenhouse gas (GHG) emissions of nutrient-rich drained peatland forest soils. Continuous cover forestry (CCF) has been prop
Externí odkaz:
https://doaj.org/article/864e2026b0a14e789e668c606bbf811f
Autor:
Maija Lampela, Kari Minkkinen, Petra Straková, Rabbil Bhuiyan, Wei He, Päivi Mäkiranta, Paavo Ojanen, Timo Penttilä, Raija Laiho
Publikováno v:
Frontiers in Forests and Global Change, Vol 6 (2023)
IntroductionPeatlands are terrestrial-carbon hotspots, where changes in carbon pools and fluxes potentially caused by drying or warming may have significant feedbacks to climate change. In forested peatlands, fine-root biomass (FRB), and production (
Externí odkaz:
https://doaj.org/article/8426419b40664ae283efb57dd1f193c6
Autor:
Antti J. Rissanen, Paavo Ojanen, Leena Stenberg, Tuula Larmola, Jani Anttila, Sakari Tuominen, Kari Minkkinen, Markku Koskinen, Raisa Mäkipää
Publikováno v:
Frontiers in Environmental Science, Vol 11 (2023)
Ditches of forestry-drained peatlands are an important source of methane (CH4) to the atmosphere. These CH4 emissions are currently estimated using the IPCC Tier 1 emission factor (21.7 g CH4 m−2 y−1), which is based on a limited number of observ
Externí odkaz:
https://doaj.org/article/e3378558c1294000b1e58a7cf158227e
Publikováno v:
Metsätieteen aikakauskirja, Vol 2020 (2020)
Metsätaloutta on pidetty valtakunnallisesti melko vähäisenä vesistökuormittajana. Tämä perustui käsitykseen, että metsäojituksen ja muiden metsätalouden toimenpiteiden vaikutukset vesistökuormitukseen ovat suhteellisen lyhytaikaisia; 10
Externí odkaz:
https://doaj.org/article/4614873aedca49bf8d1bcfb904d5227c
Publikováno v:
Forests, Vol 10, Iss 4, p 307 (2019)
Disturbances such as storm events and bark beetle outbreaks can have a major influence on forest soil carbon (C) cycling. Both autotrophic and heterotrophic soil respiration may be affected by the increase in tree mortality. We studied the effect of
Externí odkaz:
https://doaj.org/article/5d5c1f166dba4028861b2ea3ebabae8b
Autor:
Jaakko Hautanen, Paavo Ojanen
Publikováno v:
Metsätieteen aikakauskirja, Vol 2014, Iss 1 (2014)
Tässä työssä tutkittiin hiilidioksidin (CO), metaanin (CH4) ja typpioksiduulin (N2O) sekä maanmuokkauksen, lannoituksen ja hakkuutähteiden korjuun merkitystä metsien maaperän ja puuston tämänhetkisessä kasvihuonekaasutaseessa. Tase laskett
Externí odkaz:
https://doaj.org/article/da7e60304ade40a59ee61e370619cc7d
Autor:
Aleksi Lehtonen, Kyle Eyvindson, Kari Härkönen, Kersti Leppä, Aura Salmivaara, Mikko Peltoniemi, Olli Salminen, Sakari Sarkkola, Samuli Launiainen, Paavo Ojanen, Minna Räty, Raisa Mäkipää
Land-based mitigation measures are needed to achieve climate targets. One option is mitigation of currently high greenhouse gas (GHG) emissions of nutrient-rich drained peatland forest soils. Continuous cover forestry (CCF) has been proposed as a mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7c7bb39629a77b3353edb126ee5c04e
https://doi.org/10.21203/rs.3.rs-2943040/v1
https://doi.org/10.21203/rs.3.rs-2943040/v1
Autor:
Iuliia Burdun, Michel Bechtold, Mika Aurela, Gabrielle De Lannoy, Ankur R. Desai, Elyn Humphreys, Santtu Kareksela, Viacheslav Komisarenko, Maarit Liimatainen, Hannu Marttila, Kari Minkkinen, Mats B. Nilsson, Paavo Ojanen, Sini-Selina Salko, Eeva-Stiina Tuittila, Evelyn Uuemaa, Miina Rautiainen
Water table constitutes a master control of the general biogeochemistry in northern peatlands. The performance of peatland simulations in global ecosystem models is strongly hampered by the accuracy of the water table predictions. We examined the app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7343bd77e476c7618c574948b52249d
https://doi.org/10.5194/egusphere-egu23-4279
https://doi.org/10.5194/egusphere-egu23-4279
Autor:
Mikko Peltoniemi, Qian Li, Pauliina Turunen, Boris Tupek, Päivi Mäkiranta, Kersti Leppä, Mitro Müller, Antti J. Rissanen, Raija Laiho, Jani Anttila, Markku Koskinen, Aleksi Lehtonen, Paavo Ojanen, Mari Pihlatie, Sakari Sarkkola, Elisa Vainio, Raisa Mäkipää
Greenhouse gas (GHG) emissions from peatland forest soils are associated with ground water table (WT) level, which controls the vertical distribution of aerobic and anaerobic processes in soil. It has been suggested that transition from rotation fore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de0346928fd184128eeb2bf1cf605ff6
https://doi.org/10.5194/egusphere-egu23-7536
https://doi.org/10.5194/egusphere-egu23-7536
In drained peatland forests, drainage ditches cover ca. 3% of the area, but contribute to up to 100% of methane (CH4) emission. The drained peat soils, in contrast, can act as a CH4 sink especially under efficient drainage. Therefore, emissions from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0a2018636d7ae5aa639a6da15389d89
https://doi.org/10.5194/egusphere-egu23-1382
https://doi.org/10.5194/egusphere-egu23-1382