Impact of tropho-metabolic activity of earthworms (Lumbricidae) on distribution of soil algae within Acer platanoides L. plantation in recultivated territories of Western Donbass (Ukraine)

Ukrainian Journal of Ecology

Y. Maltsev¹  O. Didur²  Y. Kulbachko² 

[1] Bogdan Khmelnitsky Melitopol State Pedagogical University;Oles Honchar Dnipro National University

关键词: ecosystem services;    ecological engineers;    forest recultivation;    biogenicity of soil;    coprolites of earthworms;    soil algae;   

DOI  :  10.15421/2018_304

学科分类：生物科学（综合）

来源: Alex Matsyura Publishing

【 摘 要 】

Rational use of natural resources in conditions of modern environmental management is an ongoing challenge to maintain sufficient level of wellbeing – natural resources and healthy environment in the contest of biodiversity preservation, formation of soil fertility, esthetic properties of landscapes and other ecologically important services. One way to optimize technogenic landscapes is forest recultivation – creation of stable forest ecosystems on disturbed territories, which can be powerful environmentcreation tool. The pertinent activity of animals – ecological engineers has great importance for improvement of ecological state of forest ecosystems on the recultivated territories. Soil engineers, such as earthworms, are the key organisms in functioning of soil – most important component of terrestrial ecosystem. They participate in various ecological processes and play key role in numerous ecosystem services: biogeochemical cycles support, forming of sustainable hydrological regime of territory and soil productivity, protection from the erosion. Additional natural soil biotic factor, multiplying these effects – algae, which reflect biogenic grade of soil and their naturalization in conditions of forest recultivation. Although, soil algae and earthworms are important components, supporting soil fertility, biogenic relationship of these groups of organisms, especially in the conditions of forest recultivation, remains largely unstudied The aim of the research is to evaluate the impact of pedotrubation and tropho-metabolic activity of earthworms ( Oligochaeta :Lumbricidae ) on resettlement of soil algaflora representatives within maple ( Acer platanoidesL.) plantation on the soil recultivation plot in Western Donbass in the Steppe zone of Ukraine. In fresh coprolites of earthwormsAporrectodea caliginosaon the studied plot, five species of soil algae ( Chlorella vulgarisBeijerinck,Botrydiopsis eriensisSnow,Phormidium retzii(Agardn) Gomont,Bracteococcus sp .,Chlorococcum pulchrumArchibald et Bold) were found. They belong to divisionsChlorophyta ,Cуаnophyta ,Xantophytaand represented byCh - andP -living forms, which can dwell in artificial forest ecosystem with severehydrothermal conditions. Such representatives asPhormidium retzii ,Chlorococcum pulchrum ,Botrydiopsis eriensiswere present only in soil and coprolites on the soil surface. This indicates their rise to the soil surface in result of tropho-metabolic and pedotrubation activity of worms. This allows considering that, earthworms in the studied plot of soil recultivation contribute to redistributions and resettlement of soil algae, their exploration to new territories, and ultimately – naturalization of artificial edaphotopes of forest plantations in recultivated lands.

【 授权许可】

CC BY