Accession Number:

ADA341151

Title:

The Incorporation of Cyanobacteria into Starch Pellets and Determination of Escapability Rates For Use in Land Rehabilitation.

Descriptive Note:

Final rept.

Corporate Author:

CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL

Personal Author(s):

Report Date:

1998-04-01

Pagination or Media Count:

26.0

Abstract:

Many Army land managers find stabilization, rehabilitation, and revegetation of soil to be extremely difficult on fully denuded lands andor those riddled with rills and gullies. Finding a suitable and affordable way to repair these disturbed lands can be a formidable challenge. For arid and semi-arid lands, a well-developed cryptogamic crust may, in many cases, be an appropriate foundational material. The objective of this study was to incorporate cyanobacteria into a pelletized starch matrix for use as a soil inoculant in arid land rehabilitation. Two common terrestrial cyanobacteria, Nostoc punctiforme and Microcoleus vaginatus, were pelletized and monitored over an 8-week period July to August, 1996. Escapability and viability of the pelletized cyanobacteria were tested using both chlorophyll a extraction and epiflourescence microscopy. Direct counts of populations and mean levels of chlorophyll a in both species steadily declined during the 8-week period. Results were poor and indicated this approach would be ineffective in the field. Dessication of the organisms during the pelletizing process may have been a prime reason for lack of success in this study.

Subject Categories:

  • Microbiology
  • Organic Chemistry
  • Geography
  • Miscellaneous Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE