2016
DOI: 10.1016/j.envpol.2015.11.023
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Influence of rice straw amendment on mercury methylation and nitrification in paddy soils

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Cited by 64 publications
(21 citation statements)
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“…Although there have been several recent studies that focused on contaminated sites (Duran et al 2008;Gray and Hines 2009;Huguet et al 2010;Avramescu et al 2011;Hines et al 2012;Marvin-DiPasquale et al 2014;Windham-Myers et al 2014a, 2014b, 2014cEckley et al 2015;Figueiredo et al 2016;Liu et al 2016), these are beyond the scope of this paper; this review focuses exclusively on non-polluted aquatic systems. Recent reviews regarding both Hg methylation and demethylation focused on assessing the bioavailability of particular Hg species and the use of stable isotope techniques in methylation studies (Li and Cai 2013), the molecular mechanisms of mercury uptake and methylation (Hsu-Kim et al 2013b), and Hg cycling in Arctic (Douglas et al 2012;Braune et al 2015) and coastal marine and estuarine (Merritt and Amirbahman 2009) systems.…”
Section: Introductionmentioning
confidence: 99%
“…Although there have been several recent studies that focused on contaminated sites (Duran et al 2008;Gray and Hines 2009;Huguet et al 2010;Avramescu et al 2011;Hines et al 2012;Marvin-DiPasquale et al 2014;Windham-Myers et al 2014a, 2014b, 2014cEckley et al 2015;Figueiredo et al 2016;Liu et al 2016), these are beyond the scope of this paper; this review focuses exclusively on non-polluted aquatic systems. Recent reviews regarding both Hg methylation and demethylation focused on assessing the bioavailability of particular Hg species and the use of stable isotope techniques in methylation studies (Li and Cai 2013), the molecular mechanisms of mercury uptake and methylation (Hsu-Kim et al 2013b), and Hg cycling in Arctic (Douglas et al 2012;Braune et al 2015) and coastal marine and estuarine (Merritt and Amirbahman 2009) systems.…”
Section: Introductionmentioning
confidence: 99%
“…Several features of rice paddies make them conducive sites for methylation, including flooded conditions, anoxic soils, and high primary productivity, which leads to high amounts of organic matter . Rice paddy cultivation in this part of China involves rice straw amendment, whereby the stems and roots from the older plants are allowed to decay into the soil; such practices ensure high organic content and may also acidify soils .…”
Section: Discussionmentioning
confidence: 99%
“…Environ Toxicol Chem 36, 2017 roots from the older plants are allowed to decay into the soil; such practices ensure high organic content and may also acidify soils [25]. These soil conditions in rice paddies may make the earthworms important biomagnifiers of MeHg.…”
Section: Total Hg and Mehg In Earthwormsmentioning
confidence: 99%
“…S‐II and S‐III were raw, acidic soils (especially S‐III) with relatively low CEC and organic matter content. An HgCl 2 solution was used to dose the four soil samples to obtain an Hg content of 100 mg kg −1 (dry weight, DW), an amount chosen based on the reported Hg contents observed in Hg‐contaminated soils, which range from 0.5 to 280 mg kg −1 recorded in the literature . S‐V had a neutral pH and exhibited the largest d 50 among the tested soils, as well as exhibiting a significantly lower CEC and organic matter content compared with the other samples.…”
Section: Methodsmentioning
confidence: 99%