Abstract: The effects of two kinds of inoculating microbes (white rot fungi, actinomycetes) on composting of green wastes using a high temperature aerobic composting system were studied. The results indicated that inoculating white rot fungi plus actinomycetes resulted in a higher temperature for a longer duration compared to the other treatments. However, the pH and EC were not affected by inoculating microbes. Inoculating white rot fungi plus actinomycetes shortened the time of composting to 35 days (GI>80%) to reach compost maturity, 5-15 days less than the control. The root length of inoculating white rot fungi treatment was longer than that of the other treatments. The results of scanning electron microscopy showed that the structure of lignin and cellulose clearly changed with the inoculation of white rot fungi plus actinomycetes, and the degree of their degradation was more thorough than in the other treatments.

Key words: precipitation, deuterium isotope, West Ordos Desert, soil water