TABLE 1.

General microbiological properties of alpine dry meadow soilsa

SeasonMicrobial biomass of C (μg of C/g of soil)bGlutamate SIGR (μg of C/g of soil)cBacterial counts (109 cells/g of soil)dFungal counts (m of hyphae/g of soil)dFungal/bacterial biomass (g of fungi/g of bacteria)d
Winter655 ± 19268 ± 316.2 ± 0.34193 ± 161.62 ± 0.12
Summer422 ± 56137 ± 3321.6 ± 1.7127 ± 340.32 ± 0.11
  • a Alpine dry meadow soils were collected from under snowpack (Winter) or 2 to 6 weeks after the disappearance of the snowpack in the late spring or early summer (Summer). Values are means± standard errors of observations made between 1996 and 2001.

  • b Measured by the chloroform fumigation-extraction method.

  • c Biomass capable of growth on glutamate.

  • d Microscope counts of total bacteria and fungal cells. The ratio is based on conversion from biovolume to biomass.