| Abstract: | The dehydrogenase activity in recent underwater soils The figures for present dehydrogenase activity (DHA) in recent carbonaceous underwater soils of small rivers usually are below those of neutral arable soils with a good nutrient status. No dependence was found between DHA and organic matter or nutrient contents. The amount of formazan formed by chemical reduction of triphenyl tetrazolium chloride (TTC), becomes more important with increasing depth, whereas DHA shows no distinct depth function. |
