Microbial processing of plant remains is co-limited by multiple nutrients in global grasslands
Authors:Ochoa-Hueso, RaulBorer, Elizabeth T.Seabloom, Eric W.Hobbie, Sarah E.Risch, Anita C.Collins, Scott L.Alberti, JuanBahamonde, Hector A.Brown, Cynthia S.Caldeira, Maria C.Daleo, PedroDickman, Chris R.Ebeling, AnneEisenhauer, NicoEsch, Ellen H.Eskelinen, AnuFernandez, VictoriaGusewell, SabineGutierrez-Larruga, BlancaHofmockel, KirstenLaungani, RameshLind, EricLopez, AndreaMcCulley, Rebecca L.Moore, Joslin L.Peri, Pablo L.Power, Sally A.Price, Jodi N.Prober, Suzanne M.Roscher, ChristianeSarneel, Judith M.Schutz, MartinSiebert, JuliaStandish, Rachel J.Ayuso, Sergio VelascoVirtanen, RistoWardle, Glenda M.Wiehl, GeorgYahdjian, LauraZamin, Tara
Source:GLOBAL CHANGE BIOLOGY
Volume:26
Published:2020
Document Type:Article
Abstract:Microbial processing of aggregate-unprotected organic matter inputs is key for soil fertility, long-term ecosystem carbon and nutrient sequestration and sustainable agriculture. We investigated the effects of adding multiple nutrients (nitrogen, phosphorus and potassium plus nine essential macro- and micro-nutrients) on decomposition and biochemical transformation of standard plant materials buried in 21 grasslands from four continents. Addition of multiple nutrients weakly but consistently increased decomposition and biochemical transformation of plant remains during the peak-season, concurrent with changes in microbial exoenzymatic activity. Higher mean annual precipitation and lower mean annual temperature were the main climatic drivers of higher decomposition rates, while biochemical transformation of plant remains was negatively related to temperature of the wettest quarter. Nutrients enhanced decomposition most at cool, high rainfall sites, indicating that in a warmer and drier future fertilized grassland soils will have an even more limited potential for microbial processing of plant remains.
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Reprint Address:Ochoa-Hueso, R (corresponding author), Univ Cadiz, IVAGRO, Dept Biol, Campus Excelencia Int Agroalimentario CeiA3, Cadiz 11510, Spain.
Addresses:[Ochoa-Hueso, Raul] Univ Cadiz, IVAGRO, Dept Biol, Campus Excelencia Int Agroalimentario CeiA3, Cadiz 11510, Spain. [Borer, Elizabeth T.; Seabloom, Eric W.; Hobbie, Sarah E.; Lind, Eric] Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN USA. [Risch, Anita C.; Schutz, Martin] Swiss Fed Inst Forest Snow & Landscape Res WSL, Birmensdorf, Switzerland. [Collins, Scott L.; Lopez, Andrea] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. [Alberti, Juan; Daleo, Pedro] Consejo Nacl Invest Cient & Tecn, Inst Invest Marinas & Costeras IIMyC, Mar Del Plata, Argentina. [Bahamonde, Hector A.; Peri, Pablo L.] Univ Nacl Patagonia Austral UNPA, CONICET, Inst Nacl Tecnol Agr INTA, Rio Gallegos, Argentina. [Brown, Cynthia S.] Colorado State Univ, Dept Agr Biol, Grad Degree Program Ecol, Ft Collins, CO USA. [Caldeira, Maria C.] Univ Lisbon, Ctr Estudos Florestais, Inst Super Agron, Lisbon, Portugal. [Dickman, Chris R.; Wardle, Glenda M.] Univ Sydney, Sch Life & Environm Sci, Desert Ecol Res Grp, Sydney, NSW, Australia. [Ebeling, Anne] Friedrich Schiller Univ Jena, Inst Ecol & Evolut, Jena, Germany. [Eisenhauer, Nico; Eskelinen, Anu; Roscher, Christiane; Siebert, Julia; Virtanen, Risto] German Ctr Integrat Biodivers Res iDiv, Leipzig, Germany. [Eisenhauer, Nico; Siebert, Julia] Univ Leipzig, Inst Biol, Leipzig, Germany. [Esch, Ellen H.] Univ Guelph, Dept Integrat Biol, Guelph, ON, Canada. [Eskelinen, Anu; Virtanen, Risto] UFZ Helmholtz Ctr Environm Res, Dept Physiol Divers, Leipzig, Germany. [Eskelinen, Anu; Roscher, Christiane; Virtanen, Risto] Univ Oulu, Ecol & Genet, Oulu, Finland. [Fernandez, Victoria] Tech Univ Madrid, Sch Forest Engn, Forest Genet & Ecophysiol Res Grp, Madrid, Spain. [Gusewell, Sabine] Swiss Fed Inst Technol, Inst Integrat Biol, Zurich, Switzerland. [Gutierrez-Larruga, Blanca] Autonomous Univ Madrid, Dept Biol, Madrid, Spain. [Hofmockel, Kirsten] Iowa State Univ, Ecol Evolut & Organismal Biol, Ames, IA USA. [Hofmockel, Kirsten] Pacific Northwest Natl Lab, Environm & Biol Sci Div, Richland, WA 99352 USA. [Laungani, Ramesh] Doane Univ, Dept Biol, Crete, NE USA. [McCulley, Rebecca L.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA. [Moore, Joslin L.; Zamin, Tara] Monash Univ, Sch Biol Sci, Clayton Campus, Clayton, Vic, Australia. [Power, Sally A.] Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW, Australia. [Price, Jodi N.] Charles Sturt Univ, Inst Land Water & Soc, Albury, NSW, Australia. [Prober, Suzanne M.; Wiehl, Georg] CSIRO Land & Water, Wembley, WA, Australia. [Sarneel, Judith M.] Umea Univ, Dept Ecol & Environm Sci, Umea, Sweden. [Standish, Rachel J.] Murdoch Univ, Environm & Conservat Sci, Murdoch, WA, Australia. [Ayuso, Sergio Velasco; Yahdjian, Laura] Univ Buenos Aires, Fac Agron, CONICET, Inst Invest Fisiol & Ecol Vinculadas Agr IFEVA, Buenos Aires, DF, Argentina.
E-mail Addresses:rochoahueso@gmail.com