Skip to Main Content
Microbial biomass and bacterial functional diversity in forest soils: effects of organic matter removal, compaction, and vegetation controlAuthor(s): Qingchao Li; H. Lee Allen; Arthur G. Wollum
Source: Soil Biology & Biochemistry 36 (2004) 571-579
Publication Series: Miscellaneous Publication
PDF: View PDF (1.04 MB)
DescriptionThe effects of organic matter removal, soil compaction, and vegetation control on soil microbial biomass carbon, nitrogen, C-to-N ratio, and functional diversity were examined in a 6-year loblolly pine plantation on a Coastal Plain site in eastern North Carolina, USA. This experimental plantation was established as part of the US Forest Service's Long Term Soil Productivity Study. Sampling was undertaken on eight treatments within each of three blocks. Treatments sampled included main 2 X 2 factorial treatments of organic matter removal (stemonly or complete tree plus forest floor) and compaction (none or severe) with split-plot treatment of vegetation control (none or total vegetation control). Two blocks were located on a somewhat poorly drained, tine-loamy, siliceous, thermic aeric Paleaquult (Lynchburg soil) and one on a moderately well drained, tine-loamy, siliceous, thermic aquic Paleudult (Goldsboro soil). Soil microbial C and N were positively related with soil C and N, respectively. Microbial C and N on the Lynchburg soil were higher than those on the Goldsboro soil. Organic matter removal decreased microbial N. Compaction reduced microbial C-to-N ratio. Vegetation control decreased microbial C and C-to-N ratio. The number of C compounds utilized by bacteria was not affected by soil type or treatment. However, soil types and treatments changed bacterial selections for a few C compounds on BIOLOG plates. Soil microbial properties varied more due to the natural soil differences (soil type) as compared with treatment-induced differences.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLi, Qingchao; Allen, H. Lee; Wollum, Arthur G., II. 2004. Microbial biomass and bacterial functional diversity in forest soils: effects of organic matter removal, compaction, and vegetation control. Soil Biology & Biochemistry 36 (2004) 571-579
KeywordsMicrobial biomass, bacterial diversity, carbon, nitrogen, odds ration, detrended correspondence analysis, loblolly pine, BIOLOG, forest soils, compaction, organic matter removal
- Impacts of forest harvest on active carbon and microbial properties of a volcanic ash cap soil in northern Idaho
- Distribution and abundance of microbial biomass in Rocky Mountain spring snowpacks
- Effect of inorganic nutrients on relative contributions of fungi and bacteria to carbon flow from submerged decomposing leaf litter
XML: View XML