Search Results - "Nilsson, Lars Ola"

Dramatic changes in ectomycorrhizal community composition, root tip abundance and mycelial production along a stand‐scale nitrogen deposition gradient by Kjøller, Rasmus, Nilsson, Lars‐Ola, Hansen, Karin, Schmidt, Inger Kappel, Vesterdal, Lars, Gundersen, Per

“…• Nitrogen (N) availability is known to influence ectomycorrhizal fungal components, such as fungal community composition, biomass of root tips and production…”
Get full text

Carbon–nitrogen relations of ectomycorrhizal mycelium across a natural nitrogen supply gradient in boreal forest by Högberg, Mona N., Högberg, Peter, Wallander, Håkan, Nilsson, Lars‐Ola

“…Summary The supply of carbon (C) from tree photosynthesis to ectomycorrhizal (ECM) fungi is known to decrease with increasing plant nitrogen (N) supply, but…”
Get full text

Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils by Demoling, Fredrik, Ola Nilsson, Lars, Bååth, Erland

“…Forest soil carbon (C) pools may act as sinks for, or sources of, atmospheric carbon dioxide, while nitrogen (N) fertilization may affect the net exchange of C…”
Get full text

Field emission from carbon nanotubes: the first five years by Bonard, Jean-Marc, Kind, Hannes, Stöckli, Thomas, Nilsson, Lars-Ola

“…Carbon nanotubes, a novel form of carbon discovered in 1991, have been rapidly recognized as one of the most promising electron field emitters ever since the…”
Get full text

Mycorrhizal association of common European tree species shapes biomass and metabolic activity of bacterial and fungal communities in soil by Heděnec, Petr, Nilsson, Lars Ola, Zheng, Haifeng, Gundersen, Per, Schmidt, Inger Kappel, Rousk, Johannes, Vesterdal, Lars

“…Recent studies have revealed effects of various tree species on soil physical and chemical properties. However, effects of various tree species on composition…”
Get full text

The natural abundance of ¹⁵N in litter and soil profiles under six temperate tree species: N cycling depends on tree species traits and site fertility by Callesen, Ingeborg, Nilsson, Lars Ola, Schmidt, Inger Kappel, Vesterdal, Lars, Ambus, Per, Christiansen, Jesper Riis, Högberg, Peter, Gundersen, Per

“…Aims We investigated the influence of tree species on the natural ¹⁵N abundance in forest stands under elevated ambient N deposition. Methods We analysed δ¹⁵N…”
Get full text

Changes in microbial activities and biomasses over a forest floor gradient in C-to-N ratio by Nilsson, Lars Ola, Wallander, Håkan, Gundersen, Per

“…Background and aims Under chronically elevated N deposition, N retention mainly occur at high soil C-to-N ratio. This may be mediated through soil microbes,…”
Get full text

Growth of ectomycorrhizal mycelia and composition of soil microbial communities in oak forest soils along a nitrogen deposition gradient by Nilsson, Lars Ola, Bååth, Erland, Falkengren-Grerup, Ursula, Wallander, Håkan

“…Deciduous forests may respond differently from coniferous forests to the anthropogenic deposition of nitrogen (N). Since fungi, especially ectomycorrhizal (EM)…”
Get full text

Production of External Mycelium by Ectomycorrhizal Fungi in a Norway Spruce Forest Was Reduced in Response to Nitrogen Fertilization by Nilsson, Lars Ola, Wallander, Håkan

“…• A field study was carried out to evaluate the influence of N fertilization on the growth of the external mycelium of ectomycorrhizal (EM) fungi in a Norway…”
Get full text

Estimation of the Biomass and Seasonal Growth of External Mycelium of Ectomycorrhizal Fungi in the Field by Wallander, Håkan, Nilsson, Lars Ola, Hagerberg, David, Bååth, Erland

“…• In-growth mesh bags were used to quantify the production of external mycelium of ectomycorrhizal (EM) fungi in the field. • Colonization of the mesh bags was…”
Get full text

Translocation of an arctic seashore plant reveals signs of maladaptation to altered climatic conditions by Hällfors, Maria, Lehvävirta, Susanna, Aandahl, Tone, Lehtimäki, Iida-Maria, Nilsson, Lars Ola, Ruotsalainen, Anna, Schulman, Leif E, Hyvärinen, Marko T

“…Ongoing anthropogenic climate change alters the local climatic conditions to which species may be adapted. Information on species’ climatic requirements and…”
Get full text

Growth and biomass of mycorrhizal mycelia in coniferous forests along short natural nutrient gradients by Nilsson, Lars Ola, Giesler, Reiner, Bååth, Erland, Wallander, Håkan

“…• Total fungal biomass, the biomass of ectomycorrhizal and ericoid mycorrhizal (EM + ErM), and arbuscular mycorrhizal (AM) fungi, as well as the production of…”
Get full text

Below-ground responses of silver birch trees exposed to elevated CO2 and O3 levels during three growing seasons by Kasurinen, A, Keinanen, M.M, Kaipainen, S, Nilsson, L.O, Vapaavuori, E, Kontro, M.H, Holopainen, T

“…Field‐growing silver birch (Betula pendula Roth) clones (clone 4 and 80) were exposed to elevated CO2 and O3 in open‐top chambers for three consecutive growing…”
Get full text

Prospects and Limitations of Carbon Nanotube Field Emission Electron Sources by Oliver Gröning, Richard Clergereaux, Lars-Ola Nilsson, Pascal Ruffieux, Pierangelo Gröning, Louis Schlapbach

“…Today the most mature technology to produce gated micro field electron emitter arrays is the so-called Spindt-type metal micro-tip process. The drawbacks of…”
Get full text

Printing Gel-like Catalysts for the Directed Growth of Multiwall Carbon Nanotubes by Kind, Hannes, Bonard, Jean-Marc, Forró, László, Kern, Klaus, Hernadi, Klara, Nilsson, Lars-Ola, Schlapbach, Louis

“…Microcontact printing is used to transfer an Fe(III)-containing gel-like catalyst precursor from a hydrophilized elastomeric stamp to a substrate. The…”
Get full text

Soil N chemistry in oak forests along a nitrogen deposition gradient by Nilsson, Lars Ola, Wallander, Håkan, Bååth, Erland, Falkengren-Grerup, Ursula

“…Anthropogenic N deposition may change soil conditions in forest ecosystems as demonstrated in many studies of coniferous forests, whereas results from…”
Get full text

Carbon and nitrogen in forest floor and mineral soil under six common European tree species by Vesterdal, Lars, Schmidt, Inger K., Callesen, Ingeborg, Nilsson, Lars Ola, Gundersen, Per

“…The knowledge of tree species effects on soil C and N pools is scarce, particularly for European deciduous tree species. We studied forest floor and mineral…”
Get full text

Moth Outbreaks Reduce Decomposition in Subarctic Forest Soils by Sandén, Hans, Mayer, Mathias, Stark, Sari, Sandén, Taru, Nilsson, Lars Ola, Jepsen, Jane Uhd, Wäli, Piippa Riitta, Rewald, Boris

“…Tree mortality from insect infestations can significantly reduce carbon storage in forest soils. In subarctic birch forests (Betula pubescens), ecosystem C…”
Get full text

The natural abundance of N-15 in litter and soil profiles under six temperate tree species: N cycling depends on tree species traits and site fertility by Högberg, Peter

“…Conclusions The delta N-15 pattern reflected tree species related traits affecting the N cycling as well as site fertility and former land use, and possibly…”
Get full text

The natural abundance of [sup.15]N in litter and soil profiles under six temperate tree species: N cycling depends on tree species traits and site fertility by Callesen, Ingeborg, Nilsson, Lars Ola, Schmidt, Inger Kappel, Vesterdal, Lars, Ambus, Per, Christiansen, Jesper Riis, Hogberg, Peter, Gundersen, Per

“…Aims We investigated the influence of tree species on the natural [sup.15]N abundance in forest stands under elevated ambient N deposition. Methods We analysed…”
Get full text