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首页> 外文期刊>Journal of Environmental Management >The importance of edaphic niches functionality for the sustainability of phytomanagement in semiarid mining impacted ecosystems
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The importance of edaphic niches functionality for the sustainability of phytomanagement in semiarid mining impacted ecosystems

机译：兼爱效率效力为植物矿业植物植物的可持续性的重要性影响生态系统

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摘要

Mining activities on metal sulphide ores are considered one of the most environmentally damaging anthropogenic activities worldwide, mainly due to the production of metal(loid)- enriched tailings. The objective of the work was to elucidate which factors, including edaphic, vegetation and microbiological aspects, determine soil functionality in the phytomagement of mine tailings piles in semiarid areas. For this purpose, a field study was conducted using a transect experimental design in a former mining area located in southern Spain. Soil characteristics, including edaphic parameters, bacterial and fungal compositions, were determined. The variation in edaphic parameters (pH, electrical conductivity, organic carbon, particle size distribution, etc) through the deterioration transect caused a decrease in plant and microbial diversities, as well as in microbial productivity measured by enzymatic activities. Variation in bacterial relative abundances through the transect was better explained by soil fertility related factors, such as organic matter, pH, salinity, enzymatic activities or microbial biomass (which in turn were related to the presence of plants), than by metals concentrations. The presence of vegetation at the tailings allowed the transition from lithotrophic bacterial orders which dominated in bare tailings areas (e.g. Acidimicrobiales, Chromatiales) to organotrophic oriented orders (e.g. Cytophagales, Actino-mycetales). Vegetated patches at the tailings pile and its borders shared some organotrophic bacteria with control forest samples (e.g. Rhizobiales), indicating that natural plant mediated successional processes might stimulate biogeochemical cycles similar to those occurring at non-polluted systems. This functionality of the impacted sites, which include unfavourable edaphic conditions, should be taken into account in the phytomanagement of mine tailings, since it may support its long-term sustainability. Unlike bacteria, variations in fungal relative abundances through the transect were not clearly explained by soil parameters or the presence of plants. Other factors related to spatial distribution or the type of organic substrates may be more determinant in the case of fungi.
机译：金属硫化物矿石的采矿活动被认为是全世界最环保的人为的活动之一，主要是由于金属（懒惰）富含尾矿的生产。该工作的目的是阐明哪些因素，包括辅料，植被和微生物方面，确定半干旱地区矿山尾矿桩植物斑块中的土壤功能。为此目的，使用位于西班牙南部的前矿区的横断实验设计进行了田间研究。确定土壤特性，包括辅助参数，细菌和真菌组合物。通过劣化横断改变辅助参数（pH，电导率，有机碳，粒度分布等）的变化导致植物和微生物多样性的降低，以及通过酶活性测量的微生物生产率。通过横枢转化的细菌相对丰度的变异是通过土壤肥力相关因素的更好解释，例如有机物，pH，盐度，酶活性或微生物生物量（又与植物存在有关），而不是金属浓度。尾矿处的植被存在允许从尾尾区域（例如酸化药物，染色体）中占据在裸露的细菌顺序中的过渡到有机营养取向的顺序（例如细菌学，actino-mycetales）。尾矿桩处的植被贴片及其边界共用一些有机营养细菌，其具有对照森林样本（例如Rhizobiales），表明天然植物介导的连续过程可能刺激与在非污染系统中发生的生物地球化学循环相似的生物地球化学循环。应在矿山尾矿的植物植物中考虑受影响的地点的这种功能，包括不利的助理条件，因为它可能支持其长期可持续性。与细菌不同，土壤参数或植物的存在，不清楚地解释通过横断的真菌相对丰度的变化。在真菌的情况下，与空间分布或有机基质的类型有关的其他因素可能是更多的决定簇。

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  • 来源
    《Journal of Environmental Management》 |2020年第jul15期|110613.1-110613.11|共11页
  • 作者

    Yolanda Risueno; Cesar Petri; Hector M. Conesa;

  • 作者单位

    Urversidad Politecnica de Cartagena Escuela Tecnica Superior de Ingenieria Agronomica Departamento de Ingenieria Agronomica Paseo Alfonso ⅩⅢ 48 30203 Cartagena Spain;

    IHSM-CSIC La Mayora Departamento de Fruticultura Subtropical y Mediterranea. Avenida Wienberg s 29750 Algarrobo-Costa Malaga Spain;

    Urversidad Politecnica de Cartagena Escuela Tecnica Superior de Ingenieria Agronomica Departamento de Ingenieria Agronomica Paseo Alfonso ⅩⅢ 48 30203 Cartagena Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mine tailings; metal(loid)s; Salinity; Ecological succession; Environmental restoration;

    机译：矿井尾矿;金属（懒惰）;盐度;生态继承;环境恢复;

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