Ecoservice Role of Earthworm (Lumbricidae) Casts in Grow of Soil Buffering Capacity of Remediated Lands Within Steppe Zone, Ukraine

Autor: Maria Shulman, Angelina Kryuchkova, Oleksandr Pakhomov, Sergiy Nazimov, Iryna Loza, Y. L. Kulbachko, Tatiana Zamesova, O. O. Didur
Rok vydání: 2018
Předmět:
Zdroj: Climate Change, Food Security and Natural Resource Management ISBN: 9783319970905
Popis: This work is devoted to investigate the ecoservice role of soil saprophages in the formation of sustainable man-made ecosystems under forest plantations. The investigation allowed effect of earthworm casting activities on soil buffering against solution with different pH levels and copper compounds to be detected within the territory remediated after coal mining (Western Donbass, Ukraine). Assays of pH-buffering capacity and copper immobilization/mobilization performed on earthworm casts and artificial remediated soil. Ecosystem effectiveness of soil saprophages (earthworms, Lumbricidae) was shown to be effected on increase of acid-alkaline (pH-buffering) buffering capacity in remediated soil. The study results prove that acid-alkaline buffering capacity of earthworm casts was significantly higher than that of remediated soil and subsoil by 17.9% and 20.8%, respectively. Effectiveness of copper immobilization reflecting degree of soil stability to copper contamination was increased from 23.1% to 39.2%, respectively. Thus, earthworm ecoservice activity had positive changes on environmental conditions of remediated soil and naturalization of artificial edaphotopes within remediated lands in Steppe zone. Environmental quality of remediated soil enriched in earthworm casts was confirmed to be improved.
Databáze: OpenAIRE