Assessing the influence of immobilization remediation of heavy metal contaminated farmland on the physical properties of soil

Chen, Yanfang; Liu, Dexin; Ma, Jianzhong; Jin, Bingyan; Peng, Jianbiao; He, Xueli

doi:10.1016/j.scitotenv.2021.146773

Cited by 46 publications

(12 citation statements)

References 29 publications

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“…Physical remediation uses physical methods to extract organic pollutants from the soil into gas or liquid phase and separate them out. 20 Physical remediation techniques mainly include thermal desorption and vapor extraction. 21,22 2.1.1 Thermal desorption.…”

Section: Physical Remediationmentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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Section: Physical Remediationmentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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“…The physiological plant responses that take place during the photosynthesis [16], transpiration [17], nutrition absorption [18], and oxidative status directly depend on heavy metal absorption, translocation, and the eventual accumulation of these heavy metals in the plant. It is known that heavy metal toxicity is the consequence of internal accumulated elements, while external ions are not directly toxic by themselves, although they might indirectly influence the plant through impacts on the soil ecosystem [19] or through modifications in the soil structure [20]. Hence, interactions between the studied elements in terms of absorption by the roots and distribution within the plant is a crucial aspect.…”

Section: The Specific Response In K Pentacarpos Exposed To Simultaneo...mentioning

confidence: 99%

Kosteletzkya pentacarpos: A Potential Halophyte Candidate for Phytoremediation in the Meta(loid)s Polluted Saline Soils

Zhou

Lutts

Han

2021

Plants

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Kosteletzkya pentacarpos (L.) Ledebour is a perennial facultative halophyte species from the Malvacea family that grows in coastal areas with high amounts of salt. The tolerance of K. pentacarpos to the high concentration of salt (0.5–1.5% salinity range of coastal saline land) has been widely studied for decades. Nowadays, with the dramatic development of the economy and urbanization, in addition to the salt, the accumulation of mate(loid)s in coastal soil is increasing, which is threatening the survival of halophyte species as well as the balance of wetland ecosystems. Recently, the capacity of K. pentacarpos to cope with either single heavy metal stress or a combination of multiple meta(loid) toxicities was studied. Hence, this review focused on summarizing the physiological and biochemical behaviors of K. pentacarpos that has been simultaneously exposed to the combination of several meta(loid) toxicities. How the salt accumulated by K. pentacarpos impacts the response to meta(loid) stress was discussed. We conclude that as a potential candidate for phytoremediation, K. pentacarpos was able to cope with various environmental constrains such as multiple meta(loid) stresses due to its relative tolerance to meta(loid) toxicity.

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“…However, to meet the production and living needs of local residents, it is unrealistic to abandon large areas of polluted farmland (especially low-pollution farmland). To address this problem, different strategies including metal removal, selective farming and safe farming with agronomic measures have been explored in the past decades (Li, 2019;Jin et al, 2020;Chen et al, 2021;Deng et al, 2021;Han et al, 2022;Khmelevtsova et al, 2022). Among these, selective farming on low-pollution farmland is one of the common farming methods for some countries (including China) with large populations and less cultivated lands (Hou et al, 2018;Han et al, 2022;Khmelevtsova et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Diversity and composition of soil bacteria between abandoned and selective-farming farmlands in an antimony mining area

Duan

Chen

et al. 2022

Front. Microbiol.

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Background and aimsLand abandonment and selective farming are two common management methods to restore the soil conditions of low-pollution farmland in mining areas. The soil bacterial community plays an important role in farmland soil restoration; however, few studies have compared the composition and diversity of soil bacteria between the abandoned farmlands (AFS) and selective-farming farmlands (FFS). Here, the effects of AFS and FFS on soil properties and bacterial diversity were evaluated in an antimony (Sb) mining area in southern China. This study aimed to identify effective land management methods in terms of positive or negative changes in soil environment and bacterial diversity.Methods16S rRNA high-throughput sequencing was used to compare the diversity and composition of soil bacteria between AFS and FFS in the Xikuangshan (the largest Sb mine in the world).ResultsCompared to AFS, FFS had higher Sb concentration and nutritional properties (e.g., available N, P, and K) and lower Zn concentration (p < 0.05). The bacterial alpha diversity including Chao1 index, Simpson index, Shannon index and Pielou−e index in FFS was higher than AFS (p < 0.05). At the phylum level, FFS had higher relative abundances of Chloroflexi, Acidobacteria, Gemmatimonadetes, and Rokubacteria, and lower relative abundances of Firmicutes, Actinobacteria, and Bacteroidetes. At the genus level, FFS had higher relative abundances of Acidothermus, Haliangium, and Rokubacteriales, and lower relative abundances of Bacillus, Rhodococcus, Sphingomonas, and 67-14. Redundancy analysis indicated that soil heavy metal content and soil fertility were closely correlated with the soil bacterial community. Altogether, selective farming of low-pollution farmland in the mining area can improve soil properties and soil bacterial diversity.

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Assessing the influence of immobilization remediation of heavy metal contaminated farmland on the physical properties of soil

Cited by 46 publications

References 29 publications

Research progress of bio-slurry remediation technology for organic contaminated soil

Research progress of bio-slurry remediation technology for organic contaminated soil

Kosteletzkya pentacarpos: A Potential Halophyte Candidate for Phytoremediation in the Meta(loid)s Polluted Saline Soils

Diversity and composition of soil bacteria between abandoned and selective-farming farmlands in an antimony mining area

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