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Incorporation of Cyanobacteria into Starch Pellets and Determination of Escapability Rates For Use in Land Rehabilitation; Final rept
| 题名： | Incorporation of Cyanobacteria into Starch Pellets and Determination of Escapability Rates For Use in Land Rehabilitation; Final rept |
| 作者： | Howard, G. L.; Warren, S. D. |
| 关键词： | Bacteria; Pellets; Earth(Planet); Cyanogen; Arid land; Army personnel; Counting methods; Population; Microscopy; Soils; Repair; Supervisors; Mean; Vegetation; Land use; Rehabilitation; Land areas; Chlorophylls; Ditches; Starches |
| 摘要： | Many Army land managers find stabilization, rehabilitation, and revegetation of soil to be extremely difficult on fully denuded lands and/or 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. |
| 总页数： | 26p |
| 报告类型： | 科技报告 |
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