Abstract

The features of the composition and structure of soil microarthropod communities that are formed at ash dumps of a combined heat and power plant (CHPP) at the initial stages of their self-restoration at different degrees of conservation are studied. The research was carried out in 2017 in Novosibirsk (55°00′ N, 83°04′ E) at the ash dump of CHPP no. 5 consisting of two sections: the nonreclaimed section (S1) and the section reclaimed by covering ash and slag with potentially fertile soil (S2). A plot in a birch forest adjacent to the ash dump was used as a control. The material was collected in ash-dump zones differing in degrees of moisture (three plots in both S1 and S2) and in the control (in total, seven plots). Microarthropod communities included mites (Mesostigmata, Oribatida, and Prostigmata) and springtails (Collembola). The microarthropod abundance was significantly lower at both sections of the ash dump than in the control, while no significant differences were found between the ash-dump sections. The effect of reclamation was revealed only for mites. Among them, representatives of Oribatida proved to be most sensitive. There were no significant differences in the proportion of different groups of the community at S1. In turn, Oribatida were dominant at S2 and in the control. Based on the example of Oribatida and Mesostigmata model groups, it is shown that mite communities formed at the ash dump were species-poor and consisted of widespread species with a high degree of dominance of some of them. Oribatida can serve as a good bioindicator for assessing the soil state during restoration successions at ash dumps of CHP plants.

中文翻译：

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不同保护程度的热电厂联合排灰场土壤微节肢动物群落（Acari，Collembola）

摘要

研究了热电联产电厂（CHPP）灰渣堆在不同保护程度的自恢复初期形成的土壤节肢动物群落的组成和结构特征。该研究于2017年在新西伯利亚（55°00′N，83°04′E）的CHPP灰分场进行。图5包括两个部分：非回收部分（S1）和通过用可能肥沃的土壤覆盖灰烬和矿渣的回收部分（S2）。在白桦林中与灰渣堆相邻的地块用作对照。物料收集在不同湿度（在S1和S2中均为3个图）和对照（总共为7个图）的灰场区域。微型节肢动物群落包括螨虫（食头目，Or纲和Pro目）和跳虫（Collembola）。灰场的两个节段中的节肢动物的丰度均显着低于对照，而灰场的节段之间没有发现显着差异。仅在螨虫中发现了填海的效果。其中，Oribatida的代表被证明是最敏感的。在S1，社区不同群体的比例没有显着差异。反过来，Oribatida在S2和对照中占主导地位。以Oribatida和Mesostigmata模型组为例，研究表明，在垃圾场形成的螨类群落物种贫乏，并且由分布广泛的物种组成，其中某些物种具有高度优势。Oribatida可以作为评估CHP植物灰场恢复演替过程中土壤状态的良好生物指示剂。