Phosphatase Enzyme Activity in Different Soils Formed on Bazaltic Parent Material under Semi Humid Climate Conditions

Abstract

Soil enzymes have an important role in determining the function of microorganism in soil ecosystem. In addition, theenzyme activities give much knowledge on the biochemical processes occurring in soil. Therefore, soil enzymes such asdehydrogenase, phosphatase and urease are indicators of soil biological productivity and activity. This study was carriedout to determine phosphatase activity in different land use of Bafra-Engiz Basin, Samsun and to investigate the relationsbetween soil pedogenetic processes, land use, elevation and phosphatase activities. For this purpose, soil samples takenfrom the four soil profiles classified as Typic Haplustert and Lithic Ustorthent. The analysis results related to phosphataseactivity of soils in the study area changed between 8.1-177.3 μg p-nitrophenol. Moreover, according to statistical analysisresults different profiles and different elevation were found to be important at 1% level of effect on phosphatase enzymeactivity in the soils. Finally, it was also determined that the effect of different land use type on the activity of phosphataseenzyme activity in the soil was insignificant as statistically.