caa a22 4500 477112277 CHVBK 20180405111612.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02185565 doi (NATIONALLICENCE)springer-10.1007/BF02185565 Grass species and soil type effects on microbial biomass and activity [Elektronische Daten] [Peter Groffman, Patrick Eagan, W. Sullivan, Jerrell Lemunyon] We evaluated plant versus soil type controls on microbial biomass and activity by comparing microbial biomass C, soil respiration, denitrification potential, potential net N mineralization and nitrification in different soils supporting four grass species, and by growing a group of 10 different grass species on the same soil, in two experiments respectively. In the first experiment, none of the microbial variables showed significant variation with grass species while all variables showed significant variation with soil type, likely due to variation in soil texture. In the second experiment, there were few significant differences in microbial biomass C among the 10 grasses but there were significant relationships between variation in microbial biomass C and potential net N mineralization (negative), soil respiration (positive) and denitrification (positive). There was no relationship between microbial biomass C and either plant yield or plant N concentration. The results suggest that 1) soil type is a more important controller of microbial biomass and activity than grass species, 2) that different grass species can create significant, but small and infrequent, differences in microbial biomass and activity in soil, and 3) that plant-induced variation in microbial biomass and activity is caused by variation in labile C input to soil. Kluwer Academic Publishers, 1996 denitrification nationallicence mineralization nationallicence nitrification nationallicence nitrogen nationallicence respiration nationallicence Groffman Peter Institute of Ecosystem Studies, Box AB, 12545, Millbrook, NY, USA aut Eagan Patrick Department of Natural Resources Science, University of Rhode Island, 02881, Kingston, RI, USA aut Sullivan W. Department of Plant Science, University of Rhode Island, 02881, Kingston, RI, USA aut Lemunyon Jerrell Department of Plant Science, University of Rhode Island, 02881, Kingston, RI, USA aut Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl 183/1(1996-06-01), 61-67 0032-079X 183:1<61 1996 183 11104 https://doi.org/10.1007/BF02185565 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02185565 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Groffman Peter Institute of Ecosystem Studies, Box AB, 12545, Millbrook, NY, USA aut NATIONALLICENCE 700 1- Eagan Patrick Department of Natural Resources Science, University of Rhode Island, 02881, Kingston, RI, USA aut NATIONALLICENCE 700 1- Sullivan W. Department of Plant Science, University of Rhode Island, 02881, Kingston, RI, USA aut NATIONALLICENCE 700 1- Lemunyon Jerrell Department of Plant Science, University of Rhode Island, 02881, Kingston, RI, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl/ 183/1(1996-06-01), 61-67 0032-079X 183:1<61 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer