Spatio-temporal Variability of Heavy Metal Concentrations in Soil-rice System and Its Socio-environmental Analysis

Qin, Song; Jabeen, Sidra; ImranHaider, Shamsi; Zhu, Zihang; Liu, Xingmei; Brookes, P. C.

doi:10.17957/ijab/15.0103

Cited by 18 publications

(7 citation statements)

References 42 publications

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“…These observations relate to the findings of the present study in which the exposed tobacco genotypes showed greater MDA content, which indicated high lipid peroxidation. Lead toxicity induces oxidative stress by accumulation of ROS . The ROS are capable of attacking and oxidizing all types of biomolecules, such as nucleic acids, proteins, and lipids .…”

Section: Discussionmentioning

confidence: 99%

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Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

Maodzeka

Hussain

Wei

et al. 2016

Environmental Toxicology and Chemistry

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In the present study, the effects of lead (Pb) uptake and toxicity were investigated in a hydroponic culture using 7 tobacco (Nicotiana tabacum L.) genotypes (Bina 1 [B1], Kutsaga Mammoth 10 [KM10], Nanjing 3 [N3], Kutsaga 35 [K35], Kutsaga E1 [KE1], Cocker 176 [C176], and Kutsaga RK6 [KRK6]) that differed in Pb tolerance. Lead was applied as a solution of Pb nitrate at concentrations of 0 μM, 10 μM, 250 μM, and 500 μM. After 4 wk of Pb treatment, tissue biomass and photosynthetic parameters were measured and elemental analysis was performed. The results showed decreases in growth and photosynthetic parameters with increases in Pb concentration compared with the control. The least reduction in the recorded physiological parameters was noted in K35, whereas the greatest reduction was observed in N3, which is an obvious indication of genotypic differences. Activities of peroxidase, catalase, and malondialdehyde increased significantly with increases in Pb concentration, with genotypes K35 and N3 showing the least and the greatest reduction, respectively. The results demonstrate the phototoxic nature of Pb on plants, and it can be concluded that in Pb-prone areas genotypes K35 and B1 can be used for cultivation because they can grow efficiently in the presence of high Pb concentrations while restricting Pb uptake in the aboveground parts, as seen by the higher Pb tolerance index. Environ Toxicol Chem 2017;36:175-181. © 2016 SETAC.

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Section: Discussionmentioning

confidence: 99%

“…Lead toxicity induces oxidative stress by accumulation of ROS [8,[44][45][46]. The ROS are capable of attacking and oxidizing all types of biomolecules, such as nucleic acids, proteins, and lipids [1].…”

Section: Discussionmentioning

confidence: 99%

Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

Maodzeka

Hussain

Wei

et al. 2016

Environmental Toxicology and Chemistry

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“…Meanwhile, heavy metal pollution is one of the most important factors in the short-term anthropogenic impacts on wetlands [18][19][20]. Heavy metals, which affect water quality and the trophic structure and function of communities [18,19,21,22], enter wetland ecosystems in different ways. In contrast to chemical pollutants, heavy metals cannot be removed by natural degradation processes.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Water Quality and Heavy Metals in Wetlands along the Yellow River in Henan Province

et al. 2020

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Assessing spatiotemporal variation in water quality and heavy metals concentrations in wetlands and identifying metal contamination source are crucial steps for the protection and sustainable utilization of water resources. Using the water quality identification index (Iwq), heavy metal pollution index (HPI), hierarchical cluster analysis (HCA) and redundancy analysis (RDA), we evaluated spatiotemporal variation in water quality and heavy metals concentrations, and their interrelation in wetlands along the middle and lower Yellow River. The average Iwq was highest during flood season but the average HPI was lowest in the same season. Meanwhile, the trend in mean HPI across three hydrological seasons was the opposite to that of mean Iwq. There was significant variation in wetlands water pollution status across seasons. During the flood season, the wetlands in the affected area with hanging river were seriously polluted. In other seasons, pollution in the artificial wetlands was even more severe. Moreover, serious pollution of wetlands in belt transect #03 (Yuanyang-Zhongmu) was more frequent. Dissolved oxygen and chemical oxygen demand strongly influenced heavy metal concentrations, while other water quality parameters had different influences on heavy metal concentrations in different hydrological seasons. The causes of water pollution were divided into natural factors and human disturbance (with potential relationships between them). The polluted wetlands were greatly affected by the Yellow River during the flood season while they were more impacted by agricultural and domestic sewage discharge in other seasons. However, heavy metal deposition and leaching into riparian wetlands were still affected by diverse channel conditions. If this trend is allowed to continue unabated, wetlands along the middle and lower Yellow River are likely to lose their vital ecological and social functions.

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“…49 analyzed the temporal and spatial variation of PTEs in paddy soils polluted by the mining area along the Hengshi River from 2004 to 2012; Song et al . 50 comparative analysis of PTEs changes in paddy soils in Wenling City, Zhejiang Province in 2006 and 2011. Also, some people used space-time-changing methods or constructed models to analyze trends of soil PTEs content.…”

Section: Introductionmentioning

confidence: 99%

Temporal-spatial trends in potentially toxic trace element pollution in farmland soil in the major grain-producing regions of China

Shang

Zhang

et al. 2019

Sci Rep

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Pollution from potentially toxic trace elements (PTEs) is becoming serious and widespread in farmland soils in China, threatening food security and human health. Few large-scale studies systematically analyzed their temporal-spatial trends over vast spatially elaborate sites. The soil health status of the main grain producing areas was first announced based on a total of 3662 spatially elaborate farmland topsoil sites from the 1980s to the 2000s. Nearly 21.5% of sites were polluted, although only slightly. Pollution from the Cd, Ni, Cu, Zn, and Hg was more serious. Pollution was more extensive in the south than in the north. There was an increasing trend in the PTE concentrations, especially Cd with a growth of 21–25%, and in the proportion of mixed pollution at the sites (19.3%), Cd (21.5%), Pb (3.6%), Zn (5.7%), Cu (7.0%), and Hg (3.1%). Furthermore, temporal variations in severe Cd pollution and mixed-level Hg pollution in the north are severer. This study may provide guidance for policymakers regarding the protection and high-risk area of PTE contamination in the soils.

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Spatio-temporal Variability of Heavy Metal Concentrations in Soil-rice System and Its Socio-environmental Analysis

Cited by 18 publications

References 42 publications

Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

Elucidating the physiological and biochemical responses of different tobacco (Nicotiana tabacum) genotypes to lead toxicity

Evaluation of Water Quality and Heavy Metals in Wetlands along the Yellow River in Henan Province

Temporal-spatial trends in potentially toxic trace element pollution in farmland soil in the major grain-producing regions of China

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