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Veikko Huhta

Bio: Veikko Huhta is an academic researcher from University of Jyväskylä. The author has contributed to research in topics: Soil biology & Humus. The author has an hindex of 27, co-authored 49 publications receiving 2322 citations.

Papers
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Journal ArticleDOI
Helen Phillips1, Carlos A. Guerra2, Marie Luise Carolina Bartz3, Maria J. I. Briones4, George G. Brown5, Thomas W. Crowther6, Olga Ferlian1, Konstantin B. Gongalsky7, Johan van den Hoogen6, Julia Krebs1, Alberto Orgiazzi, Devin Routh6, Benjamin Schwarz8, Elizabeth M. Bach, Joanne M. Bennett2, Ulrich Brose9, Thibaud Decaëns, Birgitta König-Ries9, Michel Loreau, Jérôme Mathieu, Christian Mulder10, Wim H. van der Putten11, Kelly S. Ramirez, Matthias C. Rillig12, David J. Russell13, Michiel Rutgers, Madhav P. Thakur, Franciska T. de Vries, Diana H. Wall14, David A. Wardle, Miwa Arai15, Fredrick O. Ayuke16, Geoff H. Baker17, Robin Beauséjour, José Camilo Bedano18, Klaus Birkhofer19, Eric Blanchart, Bernd Blossey20, Thomas Bolger21, Robert L. Bradley, Mac A. Callaham22, Yvan Capowiez, Mark E. Caulfield11, Amy Choi23, Felicity Crotty24, Andrea Dávalos20, Andrea Dávalos25, Darío J. Díaz Cosín, Anahí Domínguez18, Andrés Esteban Duhour26, Nick van Eekeren, Christoph Emmerling27, Liliana B. Falco26, Rosa Fernández, Steven J. Fonte14, Carlos Fragoso, André L.C. Franco, Martine Fugère, Abegail T Fusilero28, Shaieste Gholami29, Michael J. Gundale, Mónica Gutiérrez López, Davorka K. Hackenberger30, Luis M. Hernández, Takuo Hishi31, Andrew R. Holdsworth32, Martin Holmstrup33, Kristine N. Hopfensperger34, Esperanza Huerta Lwanga11, Veikko Huhta, Tunsisa T. Hurisso35, Tunsisa T. Hurisso14, Basil V. Iannone, Madalina Iordache36, Monika Joschko, Nobuhiro Kaneko37, Radoslava Kanianska38, Aidan M. Keith39, Courtland Kelly14, Maria Kernecker, Jonatan Klaminder, Armand W. Koné40, Yahya Kooch41, Sanna T. Kukkonen, H. Lalthanzara42, Daniel R. Lammel43, Daniel R. Lammel12, Iurii M. Lebedev7, Yiqing Li44, Juan B. Jesús Lidón, Noa Kekuewa Lincoln45, Scott R. Loss46, Raphaël Marichal, Radim Matula, Jan Hendrik Moos47, Gerardo Moreno48, Alejandro Morón-Ríos, Bart Muys49, Johan Neirynck50, Lindsey Norgrove, Marta Novo, Visa Nuutinen51, Victoria Nuzzo, Mujeeb Rahman P, Johan Pansu17, Shishir Paudel46, Guénola Pérès, Lorenzo Pérez-Camacho52, Raúl Piñeiro, Jean-François Ponge, Muhammad Rashid53, Muhammad Rashid54, Salvador Rebollo52, Javier Rodeiro-Iglesias4, Miguel Á. Rodríguez52, Alexander M. Roth55, Guillaume Xavier Rousseau56, Anna Rożen57, Ehsan Sayad29, Loes van Schaik58, Bryant C. Scharenbroch59, Michael Schirrmann60, Olaf Schmidt21, Boris Schröder61, Julia Seeber62, Maxim Shashkov63, Maxim Shashkov64, Jaswinder Singh65, Sandy M. Smith23, Michael Steinwandter, José Antonio Talavera66, Dolores Trigo, Jiro Tsukamoto67, Anne W. de Valença, Steven J. Vanek14, Iñigo Virto68, Adrian A. Wackett55, Matthew W. Warren, Nathaniel H. Wehr, Joann K. Whalen69, Michael B. Wironen70, Volkmar Wolters71, Irina V. Zenkova, Weixin Zhang72, Erin K. Cameron73, Nico Eisenhauer1 
Leipzig University1, Martin Luther University of Halle-Wittenberg2, Universidade Positivo3, University of Vigo4, Empresa Brasileira de Pesquisa Agropecuária5, ETH Zurich6, Moscow State University7, University of Freiburg8, University of Jena9, University of Catania10, Wageningen University and Research Centre11, Free University of Berlin12, Senckenberg Museum13, Colorado State University14, National Agriculture and Food Research Organization15, University of Nairobi16, Commonwealth Scientific and Industrial Research Organisation17, National Scientific and Technical Research Council18, Brandenburg University of Technology19, Cornell University20, University College Dublin21, United States Forest Service22, University of Toronto23, Aberystwyth University24, State University of New York at Cortland25, National University of Luján26, University of Trier27, University of the Philippines Mindanao28, Razi University29, Josip Juraj Strossmayer University of Osijek30, Kyushu University31, Minnesota Pollution Control Agency32, Aarhus University33, Northern Kentucky University34, Lincoln University (Missouri)35, University of Agricultural Sciences, Dharwad36, Fukushima University37, Matej Bel University38, Lancaster University39, Université d'Abobo-Adjamé40, Tarbiat Modares University41, Pachhunga University College42, University of São Paulo43, University of Hawaii at Hilo44, College of Tropical Agriculture and Human Resources45, Oklahoma State University–Stillwater46, Forest Research Institute47, University of Extremadura48, Katholieke Universiteit Leuven49, Research Institute for Nature and Forest50, Natural Resources Institute Finland51, University of Alcalá52, King Abdulaziz University53, COMSATS Institute of Information Technology54, University of Minnesota55, Federal University of Maranhão56, Jagiellonian University57, Technical University of Berlin58, University of Wisconsin-Madison59, Leibniz Association60, Braunschweig University of Technology61, University of Innsbruck62, Russian Academy of Sciences63, Keldysh Institute of Applied Mathematics64, Khalsa College, Amritsar65, University of La Laguna66, Kōchi University67, Universidad Pública de Navarra68, McGill University69, The Nature Conservancy70, University of Giessen71, Henan University72, University of Saint Mary73
25 Oct 2019-Science
TL;DR: It was found that local species richness and abundance typically peaked at higher latitudes, displaying patterns opposite to those observed in aboveground organisms, which suggest that climate change may have serious implications for earthworm communities and for the functions they provide.
Abstract: Soil organisms, including earthworms, are a key component of terrestrial ecosystems. However, little is known about their diversity, their distribution, and the threats affecting them. We compiled a global dataset of sampled earthworm communities from 6928 sites in 57 countries as a basis for predicting patterns in earthworm diversity, abundance, and biomass. We found that local species richness and abundance typically peaked at higher latitudes, displaying patterns opposite to those observed in aboveground organisms. However, high species dissimilarity across tropical locations may cause diversity across the entirety of the tropics to be higher than elsewhere. Climate variables were found to be more important in shaping earthworm communities than soil properties or habitat cover. These findings suggest that climate change may have serious implications for earthworm communities and for the functions they provide.

223 citations

Journal ArticleDOI
01 Apr 1991-Ecology
TL;DR: Soil fauna, via enhanced nutrient mobilization and favorable changes in the structural soil properties, expert a positive influence on plant growth and therefore more effective transpiration, is clearly indicated.
Abstract: The effects of soil fauna on the growth and nutrient contents of birch seedlings were studied in laboratory microcosms simulating the complexity of a coniferous forest floor In one set of microcosms partially sterilized soil was reinoculated with soil microorganisms only; another set was reinoculated with microorganisms and a diverse soil fauna A birch seedling (Betula pendula) was planted in each microcosm, all of which were incubated in a climate chamber with various temperature and illumination regimes During two growing periods birch—leaf, stem, and root biomasses were 70%, 53%, and 38% greater, respectively, in the presence of fauna The N and P contents of leaves were °3— and 15—times higher, respectively, in the refaunted microcosmms than in the controls with microorganisms only The amount of K, Ca and Mg in leaf tissue were almost the same in both treatments Despite the greater leaf biomass, and therefore more effective transpiration, the water content of the soil remained significantly higher in the refaunted microcosms The results clearly indicate that soil fauna, via enhanced nutrient mobilization and favorable changes in the structural soil properties, expert a positive influence on plant growth

211 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of disturbances such as hard frosts and freeze-thaw cycles on decomposer populations and N mineralisation were investigated in a pine forest environment.

169 citations

Journal ArticleDOI
TL;DR: The current knowledge on the role of soil biota, their diversity and various components has accumulated mainly during the last 30 years, resulting in the modern view of soil fauna as a part of the ecosystem.

123 citations

Journal ArticleDOI
TL;DR: It was found that communities of Collembola are similar in birch stands of different origin (cultivated field or spruce forest), while the communities of Oribatida are essentially different.

117 citations


Cited by
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11 Jun 2004-Science
TL;DR: This work shows how aboveground and belowground components are closely interlinked at the community level, reinforced by a greater degree of specificity between plants and soil organisms than has been previously supposed.
Abstract: All terrestrial ecosystems consist of aboveground and belowground components that interact to influence community- and ecosystem-level processes and properties. Here we show how these components are closely interlinked at the community level, reinforced by a greater degree of specificity between plants and soil organisms than has been previously supposed. As such, aboveground and belowground communities can be powerful mutual drivers, with both positive and negative feedbacks. A combined aboveground-belowground approach to community and ecosystem ecology is enhancing our understanding of the regulation and functional significance of biodiversity and of the environmental impacts of human-induced global change phenomena.

3,683 citations

Journal ArticleDOI
TL;DR: In this article, the authors summarize the recent literature about controls on dissolved organic matter (DOM) concentrations and fluxes in so-called "soil degraded organic matter" (SOCOM).
Abstract: Dissolved organic matter (DOM) in soils plays an important role in the biogeochemistry of carbon, nitrogen, and phosphorus, in pedogenesis, and in the transport of pollutants in soils. The aim of this review is to summarize the recent literature about controls on DOM concentrations and fluxes in soi

2,138 citations

Journal ArticleDOI
TL;DR: The important role of migration in evolution is clarified, affecting spatial patterns, species ranges and adaptation to the environment; in particular, by emphasizing the crucial interaction between evolutionary and demographic processes.
Abstract: In general, individuals who survive to reproduce have genotypes that work relatively well under local conditions. Migrating or dispersing offspring elsewhere is likely to decrease an individual's or its offspring's fitness, not to mention the intrinsic costs and risks of dispersal. Gene flow into a population can counteract gene frequency changes because of selection, imposing a limit on local adaptation. In addition, the migrant flow tends to be higher from densely populated to sparsely populated areas. Thus, although the potential for adaptation might be greatest in poor and sparsely populated environments, gene flow will counteract selection more strongly in such populations. Recent papers, both theoretical and empirical, have clarified the important role of migration in evolution, affecting spatial patterns, species ranges and adaptation to the environment; in particular, by emphasizing the crucial interaction between evolutionary and demographic processes.

1,682 citations

Journal ArticleDOI
TL;DR: Free-living soil bacteria beneficial to plant growth, usually referred to as plant growth promoting rhizobacteria (PGPR), are capable of promoting plant growth by colonizing the plant root and can inhibit phytopathogens.
Abstract: Soil bacteria are very important in biogeochemical cycles and have been used for crop production for decades. Plant–bacterial interactions in the rhizosphere are the determinants of plant health and soil fertility. Free-living soil bacteria beneficial to plant growth, usually referred to as plant growth promoting rhizobacteria (PGPR), are capable of promoting plant growth by colonizing the plant root. PGPR are also termed plant health promoting rhizobacteria (PHPR) or nodule promoting rhizobacteria (NPR). These are associated with the rhizosphere, which is an important soil ecological environment for plant–microbe interactions. Symbiotic nitrogen-fixing bacteria include the cyanobacteria of the genera Rhizobium, Bradyrhizobium, Azorhizobium, Allorhizobium, Sinorhizobium and Mesorhizobium. Free-living nitrogen-fixing bacteria or associative nitrogen fixers, for example bacteria belonging to the species Azospirillum, Enterobacter, Klebsiella and Pseudomonas, have been shown to attach to the root and efficiently colonize root surfaces. PGPR have the potential to contribute to sustainable plant growth promotion. Generally, PGPR function in three different ways: synthesizing particular compounds for the plants, facilitating the uptake of certain nutrients from the soil, and lessening or preventing the plants from diseases. Plant growth promotion and development can be facilitated both directly and indirectly. Indirect plant growth promotion includes the prevention of the deleterious effects of phytopathogenic organisms. This can be achieved by the production of siderophores, i.e. small metal-binding molecules. Biological control of soil-borne plant pathogens and the synthesis of antibiotics have also been reported in several bacterial species. Another mechanism by which PGPR can inhibit phytopathogens is the production of hydrogen cyanide (HCN) and/or fungal cell wall degrading enzymes, e.g., chitinase and s-1,3-glucanase. Direct plant growth promotion includes symbiotic and non-symbiotic PGPR which function through production of plant hormones such as auxins, cytokinins, gibberellins, ethylene and abscisic acid. Production of indole-3-ethanol or indole-3-acetic acid (IAA), the compounds belonging to auxins, have been reported for several bacterial genera. Some PGPR function as a sink for 1-aminocyclopropane-1-carboxylate (ACC), the immediate precursor of ethylene in higher plants, by hydrolyzing it into α-ketobutyrate and ammonia, and in this way promote root growth by lowering indigenous ethylene levels in the micro-rhizo environment. PGPR also help in solubilization of mineral phosphates and other nutrients, enhance resistance to stress, stabilize soil aggregates, and improve soil structure and organic matter content. PGPR retain more soil organic N, and other nutrients in the plant–soil system, thus reducing the need for fertilizer N and P and enhancing release of the nutrients.

1,430 citations

Journal ArticleDOI
TL;DR: Empirical and theoretical evidence is explored for the functional significance of plant-litter diversity and the extraordinary high diversity of decomposer organisms in the process of litter decomposition and the consequences for biogeochemical cycles.
Abstract: ▪ Abstract We explore empirical and theoretical evidence for the functional significance of plant-litter diversity and the extraordinary high diversity of decomposer organisms in the process of litter decomposition and the consequences for biogeochemical cycles. Potential mechanisms for the frequently observed litter-diversity effects on mass loss and nitrogen dynamics include fungi-driven nutrient transfer among litter species, inhibition or stimulation of microorganisms by specific litter compounds, and positive feedback of soil fauna due to greater habitat and food diversity. Theory predicts positive effects of microbial diversity that result from functional niche complementarity, but the few existing experiments provide conflicting results. Microbial succession with shifting enzymatic capabilities enhances decomposition, whereas antagonistic interactions among fungi that compete for similar resources slow litter decay. Soil-fauna diversity manipulations indicate that the number of trophic levels, spec...

1,356 citations