Field assessment of the effectiveness of organic amendments for aided phytostabilization of a Pb-Zn contaminated mine soil
Field assessment of the effectiveness of organic amendments for aided phytostabilization of a Pb-Zn contaminated mine soil
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DOI：
10.1016/j.gexplo.2014.06.006
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发表时间：
2014-10-01
影响因子：
3.9
通讯作者：
Hernandez, Antonio
中科院分区：
文献类型：
--
作者：
Galende, Maria A.;Becerril, Jose M.;Hernandez, Antonio
进行了田间试验，以评估有效的有机修正物（牛：牛泥浆;家禽：家禽粪便;纸：造纸厂污泥与家禽粪便混合）辅助植物稳定的植被和非植被的网站废弃的铅/锌污染的矿山。标题紫羊茅的一个乡土生态型。被用来殖民最初无植被的网站。施用改良剂后2个月和6个月，土壤Pb和Zn的有效性（CaCl 2-可提取性）下降。牛和家禽治疗导致最高的铅提取率在非植被的网站减少。在植被的网站，奶牛处理地块表现出最高的金属可提取性下降6个月。所有的修正案，特别是家禽，导致更高的F。红生物量和植被覆盖在植被和最初无植被的网站，分别。土壤处理后两个月，土壤基础呼吸和基质诱导呼吸在植被的网站达到峰值。基于莴苣根伸长的生物测定，在土壤植物毒性方面也观察到土壤添加剂的有益效果。高变异性（空间，时间和环境）的植被和非植被矿山土壤的有效辅助植物稳定的问题进行了讨论。(C)2014年爱思唯尔B。V.保留所有权利。
A field trial was carried out to assess the effectiveness of organic amendments (COW: cow slurry; POULTRY: poultry manure; PAPER: papermill sludgemixed with poultry manure) for the aided phytostabilization of vegetated and non-vegetated sites of an abandoned Pb/Zn contaminated mine. A native ecotype of Festuca rubra L. was used for colonizing the initially non-vegetated sites. Two and six months after amendment application, soil Pb and Zn availability (CaCl2-extractability) decreased. COW and POULTRY treatments resulted in highest reduction in Pb extractability in non-vegetated sites. In vegetated sites, COW-treated plots showed the highest decrease in metal extractability at 6 months. All amendments, especially POULTRY, led to higher F. rubra biomass and vegetation cover in vegetated and initially non-vegetated sites, respectively. Two months after soil treatment, soil basal and substrate-induced respiration peaked in vegetated sites. Based on a root elongation bioassay with Lactuca sativa L., beneficial effects of soil amendments were also observed in terms of soil phytotoxicity. The problem of high variability (spatial, temporal and environmental) of vegetated and non-vegetated mine soils for an effective aided phytostabilization is discussed. (C) 2014 Elsevier B. V. All rights reserved.