Relationship between dehydrogenase activity and properties of soil aggregates
1995
Drazkiewicz, M. (Polish Academy of Sciences, Lublin (Poland). Inst. of Agrophysics)
Studies of dehydrogenase activity in aggregates of chernozemic rendzina and lessive soil proved that the diameter of aggregates significantly influences the activity of the above enzyme, subject to soil type. There is a significant positive correlation between the above activity and the percentage of particles 100 to 50 microm in aggregates of lessive soil but not in those of chernozemic rendzina. Dehydrogenase activity is also affected by soil particles of other sizes, some pores in soil aggregates, the ratio of volume of air to water in them, content of total N and organic C as well as to the total, external and internal surface areas, but the correlations in these cases are not significant at the level of 0.05.
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