Search Results - "LAIHO, RAIJA"

Decomposition in peatlands: Reconciling seemingly contrasting results on the impacts of lowered water levels by Laiho, Raija

“…Northern peatlands represent about 30% of the global soil C pools. The C pool in peat is a result of a relatively small imbalance between production and decay…”
Get full text

Effect of N addition on root exudation and associated microbial N transformation under Sibiraea angustata in an alpine shrubland by He, Wei, Yuan, Yuanshuang, Zhang, Ziliang, Xiao, Juan, Liu, Qing, Laiho, Raija, Yin, Huajun

“…Background and aim Root exudates are generally known to play an important role in ecosystem carbon (C) and nitrogen (N) cycling. We aimed to quantify the…”
Get full text

Effects of short- and long-term water-level drawdown on the populations and activity of aerobic decomposers in a boreal peatland by JAATINEN, KRISTA, FRITZE, HANNU, LAINE, JUKKA, LAIHO, RAIJA

“…We analysed the response of microbial communities, characterized by phospholipid fatty acids (PLFAs), to changing hydrological conditions at sites with…”
Get full text

Estimating fine-root production by tree species and understorey functional groups in two contrasting peatland forests by Bhuiyan, Rabbil, Minkkinen, Kari, Helmisaari, Heljä-Sisko, Ojanen, Paavo, Penttilä, Timo, Laiho, Raija

“…Background and aims: Estimation of root-mediated carbon fluxes in forested peatlands is needed for understanding ecosystem functioning and supporting…”
Get full text

High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation by Bragazza, Luca, Buttler, Alexandre, Habermacher, Jonathan, Brancaleoni, Lisa, Gerdol, Renato, Fritze, Hannu, Hanajík, Peter, Laiho, Raija, Johnson, David

“…Bogs are globally important sinks of atmospheric carbon (C) due to the accumulation of partially decomposed litter that forms peat. Because bogs receive their…”
Get full text

Carbon and nitrogen release from decomposing Scots pine, Norway spruce and silver birch stumps by Palviainen, Marjo, Finér, Leena, Laiho, Raija, Shorohova, Ekaterina, Kapitsa, Ekaterina, Vanha-Majamaa, Ilkka

“…Stumps are the largest coarse woody debris component in managed forests, but their role in nutrient cycling is poorly understood. We studied carbon (C) and…”
Get full text

Effects of Water Table Drawdown on Root Production and Aboveground Biomass in a Boreal Bog by Murphy, Meaghan, Laiho, Raija, Moore, Tim R

“…We studied the effect of long-term water table drawdown on the vascular plant community in an ombrotrophic bog in central Finland by measuring aboveground…”
Get full text

Indirect regulation of heterotrophic peat soil respiration by water level via microbial community structure and temperature sensitivity by Mäkiranta, Päivi, Laiho, Raija, Fritze, Hannu, Hytönen, Jyrki, Laine, Jukka, Minkkinen, Kari

“…Northern peatlands contain a considerable share of the terrestrial carbon (C) pool, which climate change will likely affect in the future. The magnitude of…”
Get full text

Quantification of Plant Root Species Composition in Peatlands Using FTIR Spectroscopy by Straková, Petra, Larmola, Tuula, Andrés, Javier, Ilola, Noora, Launiainen, Piia, Edwards, Keith, Minkkinen, Kari, Laiho, Raija

“…Evidence of plant root biomass and production in peatlands at the level of species or plant functional type (PFT) is needed for defining ecosystem functioning…”
Get full text

Drainage and Stand Growth Response in Peatland Forests—Description, Testing, and Application of Mechanistic Peatland Simulator SUSI by Ari Laurén, Marjo Palviainen, Samuli Launiainen, Kersti Leppä, Leena Stenberg, Iñaki Urzainki, Mika Nieminen, Raija Laiho, Hannu Hökkä

“…Drainage is an essential prerequisite in peatland forest management, which generally, but not always, increases stand growth. Growth response depends on…”
Get full text

How does management affect soil C sequestration and greenhouse gas fluxes in boreal and temperate forests? – A review by Mäkipää, Raisa, Abramoff, Rose, Adamczyk, Bartosz, Baldy, Virginie, Biryol, Charlotte, Bosela, Michal, Casals, Pere, Yuste, Jorge Curiel, Dondini, Marta, Filipek, Sara, Garcia-Pausas, Jordi, Gros, Raphael, Gömöryová, Erika, Hashimoto, Shoji, Hassegawa, Mariana, Immonen, Peter, Laiho, Raija, Li, Honghong, Li, Qian, Luyssaert, Sebastiaan, Menival, Claire, Mori, Taiki, Naudts, Kim, Santonja, Mathieu, Smolander, Aino, Toriyama, Jumpei, Tupek, Boris, Ubeda, Xavi, Verkerk, Pieter Johannes, Lehtonen, Aleksi

“…The global forest carbon (C) stock is estimated at 662 Gt of which 45% is in soil organic matter. Thus, comprehensive understanding of the effects of forest…”
Get full text

Selection Cuttings as a Tool to Control Water Table Level in Boreal Drained Peatland Forests by Leppä, Kersti, Hökkä, Hannu, Laiho, Raija, Launiainen, Samuli, Lehtonen, Aleksi, Mäkipää, Raisa, Peltoniemi, Mikko, Saarinen, Markku, Sarkkola, Sakari, Nieminen, Mika

“…Continuous cover management on peatland forests has gained interest in recent years, in part because the tree biomass with significant evapotranspiration…”
Get full text

Modified ingrowth core method plus infrared calibration models for estimating fine root production in peatlands by Laiho, Raija, Bhuiyan, Rabbil, Straková, Petra, Mäkiranta, Päivi, Badorek, Tiina, Penttilä, Timo

“…AIMS: Fine root production is a major carbon flux in many peatland ecosystems and least understood because of methodological difficulties. We aimed to develop…”
Get full text

Responses of fine-root biomass and production to drying depend on wetness and site nutrient regime in boreal forested peatland by Lampela, Maija, Minkkinen, Kari, Straková, Petra, Bhuiyan, Rabbil, He, Wei, Mäkiranta, Päivi, Ojanen, Paavo, Penttilä, Timo, Laiho, Raija

“…Introduction Peatlands are terrestrial-carbon hotspots, where changes in carbon pools and fluxes potentially caused by drying or warming may have significant…”
Get full text

Phosphorus and base cation accumulation and release patterns in decomposing Scots pine, Norway spruce and silver birch stumps by Palviainen, Marjo, Finér, Leena, Laiho, Raija, Shorohova, Ekaterina, Kapitsa, Ekaterina, Vanha-Majamaa, Ilkka

“…▶ Phosphorus and base cations (K, Ca, and Mg) are released slowly from decomposing Scots pine, Norway spruce and silver birch stumps. ▶ The absolute amounts of…”
Get full text

Total Soil CO2 Efflux from Drained Terric Histosols by Vigricas, Egidijus, Čiuldienė, Dovilė, Armolaitis, Kęstutis, Valujeva, Kristine, Laiho, Raija, Jauhiainen, Jyrki, Schindler, Thomas, Bārdule, Arta, Lazdiņš, Andis, Butlers, Aldis, Kazanavičiūtė, Vaiva, Belova, Olgirda, Kamil-Sardar, Muhammad, Soosaar, Kaido

“…Histosols cover about 8–10% of Lithuania’s territory and most of this area is covered with nutrient-rich organic soils (Terric Histosols). Greenhouse gas (GHG)…”
Get full text

Dynamics of plant-mediated organic matter and nutrient cycling following water-level drawdown in boreal peatlands by Laiho, Raija, Vasander, Harri, Penttilä, Timo, Laine, Jukka

“…If boreal peatlands face drought more often due to climatic warming, the responses of vegetation may drastically change the functions of the ecosystem. We…”
Get full text

Whole-tree, stem-only, and stump harvesting impacts on site nutrient capital of a Norway spruce-dominated peatland forest by Nieminen, Mika, Raija Laiho, Sakari Sarkkola, Timo PenttilÃ

“…About 15 million hectares of peat soils have been drained for forestry in temperate and boreal zones. Increasing interest in wood biomass as a source of…”
Get full text

Metsänhoidon keinot käyttöön ilmastonmuutoksen hillinnässä ja siihen sopeutumisessa by Laurén, Annamari, Laiho, Raija, Palviainen, Marjo

Get full text

Jatkuvapeitteisen metsänkasvatuksen mahdollisuudet ojitetuilla turvemailla by Markku Saarinen, Sauli Valkonen , Sakari Sarkkola, Mika Nieminen, Timo Penttilä, Raija Laiho

“…Avohakkuut ja kunnostusojitukset turvemailla aiheuttavat suurimman osan metsätalouden vesistökuormituksesta. Avohakkuun jälkeen turvemaan vedenpinta voi nousta…”
Get full text