Earthworm and organic amendment effects on microbial activities and metal availability in a contaminated soil from China

Zhang, Chi; Mora, Philippe; Dai, Jun; Chen, Xufei; Gıusti-Miller, Stéphanie; Ruiz-Camacho, Nuria; Velásquez, Elena; Lavelle, Patrick

doi:10.1016/j.apsoil.2016.03.006

Cited by 36 publications

(21 citation statements)

References 45 publications

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“… 23 reported that earthworms mobilized heavy metals such as Cu, Zn, Cd, and Ni in sludge, which decreased the amount of reducing substances, changed the redox state of heavy metals, and thus facilitated heavy metal activation. In treatments with earthworms only, the soil Zn availability increased by 31%, while Cd availability increased by 78–193% 24 . This can be explained as follows: (i) earthworms change the availability of heavy metals in the soil via feeding and excreting; Devliegher and Verstraete 25 reported that earthworm activity increased the availability of Cr and Co in the soil by digesting and excreting these metals; (ii) earthworm activities have also been reported to change soil pH and thus influence the morphology and transport of heavy metals; the research of Yu 21 showed that the presence of earthworms ( Pheretima sp .)…”

Section: Discussionmentioning

confidence: 97%

Improvement of the phytoremediation efficiency of Neyraudia reynaudiana for lead-zinc mine-contaminated soil under the interactive effect of earthworms and EDTA

Luo

et al. 2018

Sci Rep

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Slow plant growth, low biomass, and low bioavailability of heavy metals in soil are important factors that limit remediation efficiencies. This study adopted a pot cultivation method to evaluate the phytoremediation efficiency of Neyraudia reynaudiana, planted in contaminated soil from a lead-zinc mining area. The soil was inoculated with earthworms (Eisenia fetida), and mixed with the chelating agent ethylenediaminetetraacetic acid (EDTA) one month after planting. The addition of earthworms significantly increased the aboveground biomass of N. reynaudiana and activated heavy metals in the soil, thus facilitating heavy metal uptake by N. reynaudiana. The addition of EDTA significantly increased the incorporation and transport of heavy metals, reduced the uptake of heavy metals by the plant cell wall, and increased the proportions of cellular soluble constituents. Especially with regard to lead, inoculation with earthworms and EDTA application significantly promoted the accumulation efficiency of N. reynaudiana, increasing it 7.1-16.9-fold compared to the control treatment without earthworms and EDTA, and 1.5-2.3-fold compared to a treatment that only used EDTA.

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Section: Discussionmentioning

confidence: 97%

Improvement of the phytoremediation efficiency of Neyraudia reynaudiana for lead-zinc mine-contaminated soil under the interactive effect of earthworms and EDTA

Luo

et al. 2018

Sci Rep

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“…The bioavailability of heavy metals plays a vital role in their toxicity and accessibility to organisms (Xiao et al, 2017a(Xiao et al, , 2017b. Among the various chemical methods to evaluate heavy metal bioavailability in soils, diethylenetriaminepentaacetic acid (DTPA) extraction is an effective and widely used one (Zhang et al, 2016;Han et al, 2019). Hence, using DTPA extracted fraction to assess heavy metal bioavailability facilitates comparison with previous researches.…”

Section: Introductionmentioning

confidence: 99%

“…They also constitute a major component in soil C and N function through their feeding, burrowing and casting activities (Lavelle et al, 2016). Additionally they can modify heavy metal availability in soil (Zhang et al, 2016) as they are relatively efficient accumulators of both essential and non-essential metals (Wang et al, 2018;Yuvaraj et al, 2020). As the biochemical response of different earthworm species to soil contamination are quite different, they were often used as functional bio-indicators (Jeyanthi et al, 2016;Sinkakarimi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it may indicate the distribution of heavy metals in different soil fractions (Dai et al, 2004). Earthworm has been proved to be able to change heavy metal bioavailability in soil, and thus have been frequently used for soil heavy metal remediation (Zhang et al, 2016). Due to different earthworm species, soil types as well as metallic elements, results differed to some extents according to the various studies.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of earthworm activity on Cu, Cd, Pb and Zn bioavailability in contaminated soils using biota to soil accumulation factor and DTPA extraction

Liu

Dai

et al. 2020

Ecotoxicology and Environmental Safety

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The study aims to investigate effect of earthworm activity on metal bioavailability in soils using their BSAF-metals. Based on a microcosmic laboratory experiment, epigeic species Amynthas corticis (A. corticis) and endogeic species Amynthas robustus (A. robustus) were cultured in two types of soils contaminated by Cd, Zn, Pb and Cu for 120 days. Earthworm characteristics (i.e. numbers, biomass and BSAF), soil properties (i.e. pH, organic C and N contents along with their components such as mineralization and microbial masses) and DTPA extracted metals in soil were determined. After the incubation, the biomass and survival numbers of both earthworm species decreased significantly (P < 0.05). The accumulation of Cd, Zn and Pb in earthworm tissues and BSAF-metals were earthworm species dependent. According to two-way ANOVA, BSAF-Pb clearly showed the effect of different species of earthworms while BSAF-Cu indicated an interactive effect of earthworms and soil type. Earthworms changed soil properties significantly, especially for mineralized C (C min), dissolved N (N dis) and pH (P < 0.05). Earthworm activity increase DTPA extracted Zn and Cu, and the effect of A. robustus were stronger than for A. corticis. Redundancy analysis (RDA) showed that BSAF-Cu and BSAF-Pb contributed for respectively 51.9% and 51.7% of soil properties and DTPA metal changes, indicating that the effects of BSAF-Cu and BSAF-Pb on soil properties and on metal bioavailability in soil were similar. BSAF-Cu, indicating the interactive effect of earthworms and soil, accounted for 38.5% and 45.1% of soil properties and soil metal bioavailability changes. BSAF-Pb, representing the effect of earthworm species, accounted for 13.3% and 6.6% of soil property and soil metal bioavailability variations. Stepwise regression indicated that earthworm might change soil properties through their activities and interactions with soil, and hence increase heavy metal bioavailability. It suggested that BSAF is an important indicator for evaluating the effect of earthworm activity on soil metal bioavailability and designing remediation strategies.

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“…随着人类对土地利用强度和范围的扩大, 土壤生态系统承受的压力不断增加, 土壤结构退化、酸化、养分不平衡、污染、生物多样性丧失等问题日趋严峻 (Marrugo-Negrete et al, 2017;Kovacs & Szemmelveisz, 2017)。作为"生态系统工程师" (Jones et al, 1994), 蚯蚓活动能够有效地改变土壤环境, 它对土壤生态系统的贡献已被广泛认识 (张卫信等, 2007;陈旭飞等, 2012;Blouin et al, 2013)。在蚯蚓的分类、生理特征及其对土壤形成、结构、有机质分解、养分转化, 以及对环境和生物多样性的影响等方面已有大量研究 (Lavelle & Spain, 2001;Karaca, 2011 ; 而添加10%有机物料的污染土壤中, 表栖型赤子爱胜蚓、皮质远盲蚓和表内栖型蚯蚓毛利远盲蚓的产粪率显著高于内栖型蚯蚓壮伟远盲蚓, 其中毛利远盲蚓产粪率最高(0.460 g·g -1 fw·d -1 ), 壮伟远盲蚓产粪率最低(为 0.243 g·g -1 fw·d -1 ) (Zhang, 2011;Zhang et al, 2016)…”

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Application of earthworms on soil remediation in southern China

Zhang¹,

Zhou²,

Wu³

et al. 2018

Biodiversity Science

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Earthworm and organic amendment effects on microbial activities and metal availability in a contaminated soil from China

Cited by 36 publications

References 45 publications

Improvement of the phytoremediation efficiency of Neyraudia reynaudiana for lead-zinc mine-contaminated soil under the interactive effect of earthworms and EDTA

Improvement of the phytoremediation efficiency of Neyraudia reynaudiana for lead-zinc mine-contaminated soil under the interactive effect of earthworms and EDTA

Assessment of earthworm activity on Cu, Cd, Pb and Zn bioavailability in contaminated soils using biota to soil accumulation factor and DTPA extraction

Application of earthworms on soil remediation in southern China

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