Metal distribution and biological diversity of crusts in paddy fields polluted with different levels of cadmium

Song, Huijuan; Peng, Liang; Li, Zhiyi; Deng, Xiaozhou; Shao, Jihai; Gu, Ji‐Dong

doi:10.1016/j.ecoenv.2019.109620

Cited by 24 publications

(4 citation statements)

References 44 publications

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“…Real-time fluorescent quantitative polymerase chain reaction (PCR) of the bacterial 16S rRNA gene and the fungal ITS sequence was performed using the primers 515F/907R ( Song et al, 2019 ) and ITS3F/ITS4R ( Gade et al, 2013 ). The qPCR reagent kit was ChamQ SYBR Color qPCR Master Mix (Cat.…”

Section: Methodsmentioning

confidence: 99%

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Short-term application of chicken manure under different nitrogen rates alters structure and co-occurrence pattern but not diversity of soil microbial community in wheat field

et al. 2022

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Manure application is an effective way to improve the utilization efficiency of organic resources and alleviate the adverse effects of long-term application of chemical fertilizers. However, the impact of applying manure under different nitrogen rates on soil microbial community in wheat field remains unclear. Treatments with and without chicken manure application under three nitrogen rates (N 135, 180 and 225 kg⋅hm–2) were set in wheat field. Soil organic carbon, available nutrients, and abundance, diversity, structure and co-occurrence pattern of soil microbial community at wheat maturity were investigated. Compared with no manure application, chicken manure application increased the soil organic carbon and available phosphorus, while the effects on soil mineral nitrogen and available potassium varied with different nitrogen rates. Chicken manure application significantly increased soil bacterial abundance under the nitrogen fertilization of 135 and 225 kg⋅hm–2, increased soil fungal abundance under the nitrogen fertilization of 135 kg⋅hm–2, but decreased soil fungal abundance under the nitrogen fertilization of 180 and 225 kg⋅hm–2 (P < 0.05). There was no significant difference in alpha diversity indices of soil microbial communities between treatments with and without chicken manure application under different nitrogen rates (P > 0.05). Chicken manure application and its interaction with nitrogen rate significantly changed soil bacterial and fungal community structures (P < 0.05). There were significantly different taxa of soil microbial communities between treatments with and without chicken manure application. Chicken manure application reduced the ecological network complexity of soil bacterial community and increased that of soil fungal community. In summary, the responses of soil available nutrients and microbial abundance to applying chicken manure varied with different nitrogen rates. One growing season application of chicken manure was sufficient to alter the soil microbial community structure, composition and co-occurrence pattern, whereas not significantly affected soil microbial community diversity.

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Section: Methodsmentioning

confidence: 99%

“…PCR amplification of the bacterial 16S rRNA gene and the fungal ITS sequence was performed using the primers 515F/907R ( Song et al, 2019 ) and ITS3F/ITS4R ( Gade et al, 2013 ). The PCR reagent kit was TransStart FastPfu DNA Polymerase (CAT.…”

Section: Methodsmentioning

confidence: 99%

Short-term application of chicken manure under different nitrogen rates alters structure and co-occurrence pattern but not diversity of soil microbial community in wheat field

et al. 2022

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“… Stroud et al (2014) reported that manganese bioaccessibility positively correlated to Acidobacterium abundance, but negatively correlated to Holophaga abundance in the acidic sulfate soil. Cadmium was found to be mineralized by alphaproteobacteria and chloroplast classes in rice crust soil, making it biologically unavailable ( Song et al, 2019 ). Paddy soils contaminated with cadmium usually have low pH and lack phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Lime-Phosphorus Fertilizer Efficiently Reduces the Cd Content of Rice: Physicochemical Property and Biological Community Structure in Cd-Polluted Paddy Soil

Kuang

Song

et al. 2021

Front. Microbiol.

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Due to the biomagnifying effect in the food chains, heavy metals will cause serious harm to the food produced in paddy soil, and then threaten human health. The remediation of soil heavy metals by the addition of amendments is a common method. However, the combination of the two amendments has been less studied and its effect is unknown. In this study, we investigated the effects of different concentrations of a lime and calcium-magnesium phosphate (CMP) amendments metal availability and paddy soil bacteria biodiversity. The experiment proves that the addition of 0.5 and 1.0‰ amendment can effectively reduce cadmium (Cd) availability and the cadmium content in rice to be below 0.2 mg/kg, meeting the national food safety level. The results demonstrate that increasing pH and phosphorous (P) in soil were two important factors decreasing available cadmium. Furthermore, biodiversity analysis of the treated soil showed that the amendment increased biodiversity. Proteobacteria and Chloroflex were the most abundant bacteria at the phylum level, followed by Acidobacterium and Nitrospirae. The abundance of Bacterodietes-vadinHA17, Syntrophaceae, and Thiobacillus increased as phosphorous increased. Cadmium passivation might induce those species.

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“…Some researches that are quite interesting and related to the research topics we do include discussion on the classification of paddy fields for various needs [3][4] [5]. Then other researchers also conducted research on the metal content in polluted rice fields [6], there are also studies that study the Archaeal ether lipid composition in ancient and modern paddy soils [7]. Research related to paddy fields takes a significant part in the agriculture and animal husbandry sectors.…”

Section: Introductionmentioning

confidence: 99%

The Clustering of Paddy Fields Using Machine Learning Algorithms in the Province of South Sumatera

Suryati¹,

Sanmorino²,

Ermatita³

2020

Proceedings of the 3rd Forum in Research, Science, and Technology (FIRST 2019)

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In this paper, we were clustering paddy fields in the province of South Sumatera using machine learning algorithms. We chose machine learning algorithms because this algorithm is very relevant to the problem to be studied. The contribution of this study is in the form of result from the clustering of paddy fields which used as input or consideration for the government in determining policies related to the farming area. Policies that can use the results of the clustering of paddy fields include determining the most appropriate area for expanding paddy fields in the province of South Sumatera. The results of clustering using machine learning techniques show the expansion of paddy fields could be done in 13 districts or as much as 76.4% of the total districts in the province of South Sumatera.

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Metal distribution and biological diversity of crusts in paddy fields polluted with different levels of cadmium

Cited by 24 publications

References 44 publications

Short-term application of chicken manure under different nitrogen rates alters structure and co-occurrence pattern but not diversity of soil microbial community in wheat field

Short-term application of chicken manure under different nitrogen rates alters structure and co-occurrence pattern but not diversity of soil microbial community in wheat field

Lime-Phosphorus Fertilizer Efficiently Reduces the Cd Content of Rice: Physicochemical Property and Biological Community Structure in Cd-Polluted Paddy Soil

The Clustering of Paddy Fields Using Machine Learning Algorithms in the Province of South Sumatera

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