Title | Decomposer and nutrient cycling investigations in the Grassland Biome |
Publication Type | Conference Proceedings |
Year of Publication | 1971 |
Authors | Reuss J.O |
Editor | French NR |
Conference Name | Preliminary Analysis of Structure and Function in Grasslands: Proceedings of Symposium Entitled "The Grassland Biome: Analysis and synthesis of First Year Data" |
Series Title | Range Science Department Science Series 10 |
Pagination | 133-146 |
Date Published | September 1, 197 |
Publisher | Colorado State University |
Conference Location | Colorado State University, Fort Collins, Colorado |
Keywords | abstract, abstracts, conference, conference proceedings, conferences, decomposition,grassland, grassland, microbial biomass, grassland,decomposition, grassland,nutrient cycling, microbial biomass, grassland, nitrogen cycling,grassland, nutrient cycling,grassland, proceeding, proceedings |
Abstract | Microbial numbers and biomass have been measured at the Pawnee Site, and some data are available from Comprehensive Sites. Peak bacterial numbers in the surface soil are generally in the range of 20 to 40 x 10(to the 6th power)/g, with some higher values noted at Pawnee. At the Pawnee Site fungal populations have influenced long-term grazing treatments. Higher propagula densities were found on the lightly grazed pastures, but a larger number of high frequency species were present under heavy grazing. Estimates of dry weight microbial biomass at the Pawnee Site indicate a maximum of about 100 g/m2 to a depth of 30 cm. The substrate supply is apparently only sufficient for 5 to 10 generations of cells per year. |
Custom 1 | Fort Collins, Colorado |