Successive development of soil ecosystems at abandoned coal-ash landfills
Successive development of soil ecosystems at abandoned coal-ash landfills
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DOI：
10.1007/s10646-014-1227-5
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发表时间：
2014-03
期刊：
影响因子：
2.7
通讯作者：
S. Pen-Mouratov;Nosir https://ingeo.uz/en/laboratpries/geochemestry/ Shukurov-Nosir-https:-ingeo.uz-en-laboratpries-geochemestry-12399197;Jun Yu;Shakhnoza Rakhmonkulova;O. Kodirov;G. Barness;M. Kersten;Y. Steinberger
中科院分区：
文献类型：
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作者：
S. Pen-Mouratov;Nosir https://ingeo.uz/en/laboratpries/geochemestry/ Shukurov-Nosir-https:-ingeo.uz-en-laboratpries-geochemestry-12399197;Jun Yu;Shakhnoza Rakhmonkulova;O. Kodirov;G. Barness;M. Kersten;Y. Steinberger
本研究的主要目的是确定原生植被对土壤生态系统的连续发展的影响，在废弃的煤灰填埋场在乌兹别克斯坦的安仁燃煤电厂。两个不同的垃圾填埋场（一个不使用3年，称为新的，另一个不使用10年，称为旧的）与不同程度的植被覆盖，以评估时间和植被对土壤生物区系和生境发展的影响。研究了粉煤灰填埋场土壤生物结构，包括土壤微生物和土壤自由生活线虫群落。所观察到的土壤微生物被认为是所观察到的生态系统的最重要的组成部分。土壤自由生活线虫的总丰度、生物量、种类、营养和性别多样性、沿着真菌和有机质含量与微量金属相关。线虫的营养和物种的丰富度和多样性增加，从新老的煤灰填埋场。线虫群落的性别比被认为是依赖于研究区域的环境条件，与男性是最敏感的线虫组。所有应用的生态指标都证实，远离植物的开放式垃圾填埋场是最不利的土壤生物区系。在这方面，本土植物Alhagi maurorum Desv.和柽柳是垃圾填埋场土壤生态系统自然修复的重要环境组分。
The main goal of the present study was to determine the effect of the native vegetation on the successive development of the soil ecosystem at abandoned coal-ash landfills of the Angren coal-fired power plant in Uzbekistan. Two different landfills (one not in use for 3 years, termed newer, and the other not in use for 10 years, termed older) with different degrees of vegetation cover were chosen to assess the time and vegetation effects on soil biota and habitat development. The soil biotic structure, including soil microorganisms and soil free-living nematode communities, was investigated both at open plots and under different native plants at the coal-ash landfill area. The observed soil microorganisms were found to be the most important component of the observed ecosystems. Total abundance, biomass, species, trophic and sexual diversity of soil free-living nematodes, along with fungi and organic-matter content, were found to be correlated with trace metals. The nematode trophic and species abundance and diversity increased from the newer toward the older coal-ash landfills. The sex ratio of the nematode communities was found to be dependent on the environmental conditions of the study area, with the males being the most sensitive nematode group. All applied ecological indices confirmed that open landfill plots distant from plants are the most unfavorable areas for soil biota. In that respect, the native plantsAlhagi maurorum Desv. andTamarix sp. were found to be important environmental components for the natural remediation of a soil ecosystem in the coal-ash landfill area.