caa a22 4500 60621867X CHVBK 20210128101114.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11104-015-2403-y doi (NATIONALLICENCE)springer-10.1007/s11104-015-2403-y Linking tree species identity to anaerobic microbial activity in a forested wetland soil via leaf litter decomposition and leaf carbon fractions [Elektronische Daten] [Joseph Yavitt, Christopher Williams] Aims: Our aim was to examine the linkage between tree species and anaerobic microbial activity in a forested wetland. If plant species have a unique influence on soil microorganisms, then knowing plant species identity has tremendous potential to predict rates of microbial activity belowground. We expected the linkage to occur via leaf litter decay rate and differences in leaf litter carbon (C) fractions. Methods: We used leaf litter from 10 tree species (angiosperm and gymnosperm, deciduous and evergreen) and soil from a forested wetland in New York State. We quantified leaf litter decay on the soil surface and correlated variation in rates with leaf mass per area (LMA) and several C fractions. We extracted water-soluble compounds from green leaves and leaf litter and tested their ability to fuel anaerobic carbon dioxide (CO2) production and methane (CH4) production. We also added leaf litter directly to soil to examine how the residue might influence anaerobic microbial activity. Results: Leaf decay rates exhibited a negative linear relationship with LMA. Variations in rates of soil methane (CH4) production were species specific and greater with gymnosperms (mean = 8.6μmol g−1 d−1) than angiosperms (mean = 3.7μmol g−1 d−1). Rates of anaerobic CO2 production were less affected by plant species. Pectin and hemicellulose in leaf litter was particularly conducive to anaerobic decomposition and CH4 production. Conclusions: The influence of plant species on soil microbial activity will become clearer when we can better quantify leaf C fractions and understand the decomposability of each fraction in relationship to others. Springer International Publishing Switzerland, 2015 Decomposition nationallicence Leaf carbon fractions nationallicence Methane production nationallicence Plant species identity nationallicence Wetland soil nationallicence Yavitt Joseph Department of Natural Resources, Cornell University, 14853-3001, Ithaca, NY, USA aut Williams Christopher Department of Earth and Environment, Franklin and Marshall College, 17604-3003, Lancaster, PA, USA aut Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 293-305 0032-079X 390:1-2<293 2015 390 11104 https://doi.org/10.1007/s11104-015-2403-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2403-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yavitt Joseph Department of Natural Resources, Cornell University, 14853-3001, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Williams Christopher Department of Earth and Environment, Franklin and Marshall College, 17604-3003, Lancaster, PA, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 293-305 0032-079X 390:1-2<293 2015 390 11104