<p><p><strong>Reference(s):</strong></p><p><em>Ivanov and Chu (2008)</em></p><p><strong>Method Summary</strong></p><p>Proper microorganisms are needed for effective bio-treatment of soils. The microorganism physiological classification method is used in quality assurance. The efficiency of bio‑stabilization is related to microorganism oxygen requirements, energy generation, cell structure, growing conditions, etc. Using a biological method to determine these factors is necessary.</p><p><strong>Accuracy and Precision</strong></p><p>The accuracy and precision of this method are low.</p><p><strong>Adequacy of Coverage</strong></p><p>The adequacy of coverage of this method is low.</p><p><strong>Implementation Requirements </strong></p><p>This method has high implementation requirements, as the variation of microorganisms is large. Trained labor and special equipment are necessary.</p><p><strong>General Comments</strong></p><p>Microorganisms could have positive effects on soil, and also could have negative effects on soil. Thus proper microorganism physiological classification is important and necessary. In addition, since the growing conditions of microorganisms are complicated, pH, temperature and oxygen need to be tested frequently.</p></p>