caa a22 4500 605516995 CHVBK 20210128100717.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10533-015-0083-6 doi (NATIONALLICENCE)springer-10.1007/s10533-015-0083-6 Effects of litter traits, soil biota, and soil chemistry on soil carbon stocks at a common garden with 14 tree species [Elektronische Daten] [Kevin Mueller, Sarah Hobbie, Jon Chorover, Peter Reich, Nico Eisenhauer, Michael Castellano, Oliver Chadwick, Tomasz Dobies, Cynthia Hale, Andrzej Jagodziński, Izabela Kałucka, Barbara Kieliszewska-Rokicka, Jerzy Modrzyński, Anna Rożen, Maciej Skorupski, Łukasz Sobczyk, Małgorzata Stasińska, Lidia Trocha, January Weiner, Anna Wierzbicka, Jacek Oleksyn] Tree species interact with soil biota to impact soil organic carbon (C) pools, but it is unclear how this interaction is shaped by various ecological factors. We used multiple regression to describe how ~100 variables were related to soil organic C pools in a common garden experiment with 14 temperate tree species. Potential predictor variables included: (i) the abundance, chemical composition, and decomposition rates of leaf litter and fine roots, (ii) species richness and abundance of bacteria, fungi, and invertebrate animals in soil, and (iii) measures of soil acidity and texture. The amount of organic C in the organic horizon and upper 20cm of mineral soil (i.e. the combined C pool) was strongly negatively correlated with earthworm abundance and strongly positively correlated with the abundance of aluminum, iron, and protons in mineral soils. After accounting for these factors, we identified additional correlations with soil biota and with litter traits. Rates of leaf litter decomposition, measured as litter mass loss, were negatively correlated with size of the combined soil organic C pool. Somewhat paradoxically, the combined soil organic C pool was also negatively related to the ratio of recalcitrant compounds to nitrogen in leaf litter. These apparent effects of litter traits probably arose because two independent components of litter "quality” were controlling different aspects of decomposition. Leaf litter mass loss rates were positively related with leaf litter calcium concentrations, reflecting greater utilization and depolymerization of calcium-rich leaf litter by earthworms and other soil biota, which presumably led to greater proportional losses of litter C as CO2 or dissolved organic C. The fraction of depolymerized and metabolized litter that is ultimately lost as CO2 is an inverse function of microbial C use efficiency, which increases with litter nutrient concentrations but decreases with concentrations of recalcitrant compounds (e.g. lignin); thus, high ratios of recalcitrant compounds to nitrogen in leaf litter likely caused a greater fraction of depolymerized litter to be lost as CO2. Existing conceptual models of soil C stabilization need to reconcile the effects of litter quality on these two potentially counteracting factors: rates of litter depolymerization and microbial C use efficiency. US Government, 2015 Soil organic matter nationallicence Decomposition nationallicence Lignin nationallicence Litter quality nationallicence Substrate use efficiency nationallicence Earthworm nationallicence Mueller Kevin Department of Ecology, Evolution and Behavior, University of Minnesota, 55108, Saint Paul, MN, USA aut Hobbie Sarah Department of Ecology, Evolution and Behavior, University of Minnesota, 55108, Saint Paul, MN, USA aut Chorover Jon Department of Soil, Water and Environmental Science, University of Arizona, 85721, Tucson, AZ, USA aut Reich Peter Department of Forest Resources, University of Minnesota, 55108, Saint Paul, MN, USA aut Eisenhauer Nico German Centre for Integrative Biodiversity Research (iDiv) Jena-Halle-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany aut Castellano Michael Department of Agronomy, Iowa State University, 50011, Ames, IA, USA aut Chadwick Oliver Department of Geography, University of California, 93106, Santa Barbara, CA, USA aut Dobies Tomasz Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut Hale Cynthia The Natural Resources Research Institute, University of Minnesota Duluth, 55811, Duluth, MN, USA aut Jagodziński Andrzej Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut Kałucka Izabela Department of Algology and Mycology, University of Łódź, Łódź, Poland aut Kieliszewska-Rokicka Barbara Institute of Environmental Biology, Kazimierz Wielki University, Al. Ossolińskich 12, 85-093, Bydgoszcz, Poland aut Modrzyński Jerzy Department of Forest Sites and Ecology, Poznań University of Life Sciences, Poznań, Poland aut Rożen Anna Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut Skorupski Maciej Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut Sobczyk Łukasz Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut Stasińska Małgorzata Department of Botany and Nature Protection, University of Szczecin, Szczecin, Poland aut Trocha Lidia Institute of Dendrology, Polish Academy of Sciences, 62-035, Kórnik, Poland aut Weiner January Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut Wierzbicka Anna Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut Oleksyn Jacek Department of Forest Resources, University of Minnesota, 55108, Saint Paul, MN, USA aut Biogeochemistry Springer International Publishing 123/3(2015-04-01), 313-327 0168-2563 123:3<313 2015 123 10533 https://doi.org/10.1007/s10533-015-0083-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10533-015-0083-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mueller Kevin Department of Ecology, Evolution and Behavior, University of Minnesota, 55108, Saint Paul, MN, USA aut NATIONALLICENCE 700 1- Hobbie Sarah Department of Ecology, Evolution and Behavior, University of Minnesota, 55108, Saint Paul, MN, USA aut NATIONALLICENCE 700 1- Chorover Jon Department of Soil, Water and Environmental Science, University of Arizona, 85721, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Reich Peter Department of Forest Resources, University of Minnesota, 55108, Saint Paul, MN, USA aut NATIONALLICENCE 700 1- Eisenhauer Nico German Centre for Integrative Biodiversity Research (iDiv) Jena-Halle-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany aut NATIONALLICENCE 700 1- Castellano Michael Department of Agronomy, Iowa State University, 50011, Ames, IA, USA aut NATIONALLICENCE 700 1- Chadwick Oliver Department of Geography, University of California, 93106, Santa Barbara, CA, USA aut NATIONALLICENCE 700 1- Dobies Tomasz Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Hale Cynthia The Natural Resources Research Institute, University of Minnesota Duluth, 55811, Duluth, MN, USA aut NATIONALLICENCE 700 1- Jagodziński Andrzej Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Kałucka Izabela Department of Algology and Mycology, University of Łódź, Łódź, Poland aut NATIONALLICENCE 700 1- Kieliszewska-Rokicka Barbara Institute of Environmental Biology, Kazimierz Wielki University, Al. Ossolińskich 12, 85-093, Bydgoszcz, Poland aut NATIONALLICENCE 700 1- Modrzyński Jerzy Department of Forest Sites and Ecology, Poznań University of Life Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Rożen Anna Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut NATIONALLICENCE 700 1- Skorupski Maciej Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Sobczyk Łukasz Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut NATIONALLICENCE 700 1- Stasińska Małgorzata Department of Botany and Nature Protection, University of Szczecin, Szczecin, Poland aut NATIONALLICENCE 700 1- Trocha Lidia Institute of Dendrology, Polish Academy of Sciences, 62-035, Kórnik, Poland aut NATIONALLICENCE 700 1- Weiner January Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland aut NATIONALLICENCE 700 1- Wierzbicka Anna Department of Game Management and Forest Protection, Poznań University of Life Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Oleksyn Jacek Department of Forest Resources, University of Minnesota, 55108, Saint Paul, MN, USA aut NATIONALLICENCE 773 0- Biogeochemistry Springer International Publishing 123/3(2015-04-01), 313-327 0168-2563 123:3<313 2015 123 10533