title: Seasonal variability of microbial biomass phosphorus in urban soils.
abstract: Urban soils have been formed through human activities. Seasonal evaluation with time-control procedure are essential for plant, and activity of microorganisms. Therefore, these processes are crucial in the urban area due to geochemical changes in the past years. The purpose of this study was to investigate the changes of content of microbial biomass phosphorus (P) in the top layer of soils throughout the season. In this research, the concentration of microbial biomass P ranged from 0.01 to 6.29 mg·kg(-1). We used single-factor repeated-measure analysis of variance to test the effect of season on microbial biomass P content of selected urban soils. We found no statistically significant differences between the concentration of microbial biomass P in the investigated urban and sub-urban soils during the growing season. This analysis explicitly recognised that environmental urban conditions are steady. Specifically, we have studied how vegetation seasonality and ability of microbial biomass P are useful for detecting quality deviations, which affect the equilibrium of urban soil. In conclusion, seasonal variability of the stringency of assurance across the different compounds of soil reveals, as expected, the stable condition of the urban soils. Seasonal responses in microbial biomass P under urban soil use should establish a framework as a reference to the activity of the microorganisms.
authors.affiliation: Department of Land Reclamation and Peat-Bog Protection, University of Agriculture, Al. Mickiewicza 24/28, 30-059 Kraków, Poland. Electronic address: wiktor@mailmix.pl.
authors.forename: W
authors.initials: W
authors.lastname: Halecki
authors.affiliation: Department of Soil Science and Soil Protection, University of Agriculture, Al. Mickiewicza 21, 31-120 Kraków, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Gąsiorek
mesh_terms: D018533:Biomass; D004784:Environmental Monitoring; D010758:Phosphorus / Q000032:analysis*; D012621:Seasons; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology
chemical_list: D012987:Soil; D010758:Phosphorus
keywords: Anthropogenic soil; Microbial activity; Seasonality; Urban areas