Revegetation approach and plant identity unequally affect structure, ecological network and function of soil microbial community in a highly acidified mine tailings pond

Zhou, Wenhua; Wang, Yutao; Lian, Zheng‐Han; Yang, Tong; Zeng, Qingwei; Feng, Shiwei; Fang, Zhou; Shu, Wen‐Sheng; Huang, Li-Nan; Ye, Zhihong; Liao, Bin; Li, Jintian

doi:10.1016/j.scitotenv.2020.140793

Cited by 33 publications

(4 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to understand the overall situation of soil pollution and remediation, study the mutual influence of various factors in the domain of soil remediation [ 4 ]. At the same time, synusiologic civilization construction and synusiologic environmental protection have entered a new era driven by data [ 5 ]. The data collected in the work of resolutely fighting the battle against pollution, continuously improving the quality of the synusiologic environment, and constantly meeting the people's growing beautiful synusiologic environment are often incomplete, unclear, large, and random, so they cannot be separated from the support of the DM technique [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Construction Means of Soil Microbial Synusiologic Network Based on ANN

Wang

Yuan³

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

With the construction of synusiologic civilization and synusiologic environmental protection entering a new era driven by data, the breadth and depth of application of the DM technique in the domain of synusiologic environmental protection are constantly strengthened. If reasonable planning is not carried out in the process of social construction, it will cause unpredictable damage to the synusiologic environment. However, traditional synusiologic planning means too much human interference, and there are still some shortcomings in accuracy and operability, which means they cannot guide synusiologic construction well. In order to analyze the contribution of the soil nutrient data to soil fertility and dig out the knowledge describing soil fertility, this paper studies the construction means of soil microbial synusiologic network by ANN. By simulating the learning, memorizing, and processing problems of human brain neurons, the artificial network establishes a parallel distributed processing system computing DMG model with a large number of connections, which can quickly acquire knowledge from the outside world and store and process it and respond to the changes in the external environment in time. According to the research in this paper, the network performance of this algorithm is 18% better than that of the traditional algorithm, and it is suitable to be widely put into practice.

show abstract

Section: Introductionmentioning

confidence: 99%

Construction Means of Soil Microbial Synusiologic Network Based on ANN

Wang

Yuan³

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

show abstract

“…The establishment of a functional belowground ecosystem is critical to short-and long-term phytostabilization success (Marques et al 2009) and phytorestoration. This includes not only restoration of the microbial community (Valentín-Vargas et al 2014;Zhou et al 2020) but also increases in soil organic matter and improvements in pH and soil structure (Huang et al 2012). In our study, compost was critical to forming organic matter and allowing for microbial growth in the tailings.…”

Section: Discussionmentioning

confidence: 71%

A combined compost, dolomite, and endophyte addition is more effective than single amendments for improving phytorestoration of metal contaminated mine tailings

Creamer,

Leewis,

Kracmarova-Farren

et al. 2023

Plant Soil

View full text Add to dashboard Cite

Background and aims Re-vegetation of mining-impacted landscapes reduces transport of toxic elements while improving soil fertility. This study evaluated whether the planting of a native perennial grass with a consortium of diazotrophic microbial endophytes and municipal waste compost—alone and in combination—enhanced plant growth while stabilizing metal(loids) in dolomite-amended tailings from a historically mined polymetallic mineral deposit. Methods We grew Bouteloua curtipendula seedlings in tailings with hazardous concentrations of As, Cd, Pb, Mn, and Zn. We evaluated how plant growth, organic matter accumulation, and major, minor, and trace element mobilization and phytostabilization responded to microbial endophyte and/or compost amendments after the 45-day growth experiment. Results Although most of the added endophytes were not uniquely identified, the best plant growth and fertility outcomes were achieved with a combination of amendments: dolomite to reduce acidity, compost to increase nitrogen, and a mixed consortium endophyte seed coating to synergistically increase organic carbon and grass biomass yields. Compost reduced shoot and root concentrations—but not yields—of contaminant metals. Endophytes increased foliar Cd, Co, Mn, and Pb yields but mobilized Pb and Zn from the tailings. Root stabilization of Cd, Co, Mn did not require amendments. Conclusion The most effective means of revegetating these acidic, polymetallic tailings with the native B. curtipendula is with a simultaneous dolomite, compost, and endophyte seed treatment. Due to potential phosphate solubilization and siderophore production by this consortium of endophytes, strategies to capture solubilized metal(loids) may be needed for sulfidic tailings with metal(loids) associated with mobile mineral phases.

show abstract

“…have disadvantages, such as high cost and secondary pollution [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Therefore, the remediation of contaminated soil in tailing areas by phytoecology has attracted increasing attention [ 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Xie

Yao

et al. 2022

IJERPH

View full text Add to dashboard Cite

Phytoremediation could be an alternative strategy for lead (Pb) contamination. K. paniculata has been reported as a newly potential plant for sustainable phytoremediation of Pb-contaminated soil. Physiological indexes, enrichment accumulation characteristics, Pb subcellular distribution and microstructure of K. paniculata were carefully studied at different levels of Pb stress (0–1200 mg/L). The results showed that plant growth increased up to 123.8% and 112.7%, relative to the control group when Pb stress was 200 mg/L and 400 mg/L, respectively. However, the average height and biomass of K. paniculata decrease when the Pb stress continues to increase. In all treatment groups, the accumulation of Pb in plant organs showed a trend of root > stem > leaf, and Pb accumulation reached 81.31%~86.69% in the root. Chlorophyll content and chlorophyll a/b showed a rising trend and then fell with increasing Pb stress. Catalase (CAT) and peroxidase (POD) activity showed a positive trend followed by a negative decline, while superoxide dismutase (SOD) activity significantly increased with increasing levels of Pb exposure stress. Transmission electron microscopy (TEM) showed that Pb accumulates in the inactive metabolic regions (cell walls and vesicles) in roots and stems, which may be the main mechanism for plants to reduce Pb biotoxicity. Fourier transform infrared spectroscopy (FTIR) showed that Pb stress increased the content of intracellular -OH and -COOH functional groups. Through organic acids, polysaccharides, proteins and other compounds bound to Pb, the adaptation and tolerance of K. paniculata to Pb were enhanced. K. paniculata showed good phytoremediation potential and has broad application prospects for heavy metal-contaminated soil.

show abstract

Revegetation approach and plant identity unequally affect structure, ecological network and function of soil microbial community in a highly acidified mine tailings pond

Cited by 33 publications

References 65 publications

Construction Means of Soil Microbial Synusiologic Network Based on ANN

Construction Means of Soil Microbial Synusiologic Network Based on ANN

A combined compost, dolomite, and endophyte addition is more effective than single amendments for improving phytorestoration of metal contaminated mine tailings

Lead Responses and Tolerance Mechanisms of Koelreuteria paniculata: A Newly Potential Plant for Sustainable Phytoremediation of Pb-Contaminated Soil

Contact Info

Product

Resources

About