Environmental Impact of Earthworm (Lumbricidae) Excretory Activity ON šĶ-Buffering Capacity of Remediated Soil
O. Didur, I. Loza*, Y. Kulbachko, O. Pakhomov, A. Kryuchkova
Oles Gonchar Dnipropetrovsk National University
72, Gagarin Ave., Dnipropetrovsk 49010, Ukraine
The environmental impact of metabolic activity of saprophages specimen on pH-buffering capacity of devastated lands was studied. Earthworms (Lumbricidae) for investigations were taken from artificial forest plantations grown on the lands reclaimed from the mining industry. It is shown their positive influence on acid-alkaline buffering capacity of devastated lands. The quantitative assessment of the earthworm impact on pH buffering value of remediated soil is represented. It is experimentally proved that earthworm cast does have higher acid-alkaline buffering capacity compare to buffering of loess loam. It was found that the acid-alkaline buffering capacity of artificial soil as a result of their excretory activity had increased on 17.7%. This is positive for its ecological properties and economic value.
Keywords: devastated lands, forest remediation, ecological properties of soil, earthworm excretory activity, soil pH-buffering