THE SEASONAL VARIATION OF RESPIRATION RATE OF SOIL MICROORGANISMS RELATED TO SOIL TEMPERATURE AND SOIL MOISTURE ON THE LEYMUS CHINENSIS GRASSLAND IN NORTHEAST CHINA
东北羊草草原土壤微生物呼吸速率的研究

The pattern of the seasonal variation of respiration rtae for soil microorganisms was studied on the natural Yang-Cao (Leywus Chinensis) Grassland in Northeast China. The highest rate appears in August.. The "seasonal changes of soil temperature and soil moisture have much effect on the respiration rate of soil bacteria. Both temperature and moisture factors are important to respiration rate and normally correlated with it distinctly by regression analysis. Their coefficients are 0.9999918 and 0.9999365 respectively. The synthetic effect of temperature and moisture on respiration rate was also studied . To remain soil temperature and moisture in suitable conditions seperately and to induce respiration rate of soil microorganisms normally, it is necessary for improving the digestion of organic detritus, which originated frcm animate and plants, in soil and for conserving natural ecological equilibrium on Yang-Cao Gassland.