dc.description.abstract | Composite soils from conventional tillage (CT) and no-till (NT) fields
under wheat (Triticum vulgare cultivar Dogu-88) were randomly collected
(0-30 cm depth) in triplicate at 1, 5, 10, 15, 20 and 25 km distance to
evaluate the effects of cement dust on soil basal respiration, microbial
populations, enzyme activity and calculated soil quality (SQ) indices.
Soil pH, exchangeable Ca and Mg, CaCO3, and alkaline phosphatase (AlkP)
showed a significant linear decrease in total organic C (TOC), total C
(TC), urease activity (UA), and bacterial populations, and soil
biological quality (SBQ) showed a significant linear increase with
sampling distance from the cement plant. Total N (TN), available P (AP),
basal respiration (BR), acid phosphate (AcdP) activity, dehydrogenase
(DH) activity, fungal populations, and SQ showed a quadratic response
with sampling distance. Soil pH, CaCO3, TOC effective CEC, SBQ, soil
chemical quality (SCQ), and SQ were significantly influenced by
increasing distance. | |