Biochar improved soil health and mitigated greenhouse gas emission from controlled irrigation paddy field: Insights into microbial diversity

Jiang, Zewei; Sung-Bum, Yang; Pang, Qingqing; Xu, Yan; Chen, Xi; Sun, Xiao; Qi, Suting; Yu, Wanqing

doi:10.1016/j.jclepro.2021.128595

Cited by 51 publications

(12 citation statements)

References 61 publications

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“…Excessive application of N fertilization and low N use efficiency are the primary sources of soil N 2 O emissions (Reay et al 2012;Tian et al 2019). Numerous studies have demonstrated the effectiveness of biochar in mitigating N 2 O emissions (Deng et al 2021a;Jiang et al 2021;Shin et al 2021). Lower N 2 O emissions involved several mechanisms, which included abiotic N retention mechanisms and microbial N immobilization mechanisms (Guenet et al 2021;Lehmann et al 2021;Liao et al 2021).…”

Section: Biochar For Global Climate Change Mitigationmentioning

confidence: 99%

“…Biochar has been well-reported to mitigate CH 4 emissions from paddy soil (Dong et al 2021;Jiang et al 2021;Qi et al 2021b). The mechanisms of CH 4 emission mitigation by biochar mainly included: (i) biochar inhibited the activity and abundance of methanogens but stimulated those of methanotrophs (Nan et al 2021); (ii) biochar increased the adsorption of CH 4 in soil .…”

Section: Biochar For Global Climate Change Mitigationmentioning

confidence: 99%

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Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Singh

Wang

et al. 2023

Biochar

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As a bioproduct from the thermal decomposition of biomass, biochar has various applications in diversified field. In this study, a bibliometric analysis was conducted to visualize the current research status and trends of biochar research. A total of 5535 documents were collected from the Web of Science Core Collection and subjected to visualization analysis for the biochar field's development in 2021 with CiteSpace software. The visual analysis results demonstrate that the number of publications expanded dramatically in 2021, and the growth trend would continue. China and USA were the most contributing countries in biochar research in terms of the number of publications. Based on the keyword co-occurrence analyses, “Biochar for toxic metal immobilization”, “Biochar-based catalyst for biofuel production”, “Biochar for global climate change mitigation”, “Biochar for salinity and drought stress amelioration”, “Biochar amendment in composting”, and “Biochar as additives in anaerobic digestion” were the main research trends and hotspots in this field in 2021. This indicates that the biochar research was multidisciplinary. Regarding the research hotspots, the employment of biochar as heterogeneous catalysts for biofuel production gained great attention in 2021. On the contrary, bioremediation using functional bacteria immobilized on biochar and biochar-assisted advanced oxidation process were well-studied but with less frequency than other topics in 2021. Furthermore, the future research was proposed for green and sustainable applications of biochar. This review provides a comprehensive overview of the research frontiers, the evolution of research hotspots, and potential future research directions in the biochar field. Graphical Abstract

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Section: Biochar For Global Climate Change Mitigationmentioning

confidence: 99%

Section: Biochar For Global Climate Change Mitigationmentioning

confidence: 99%

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Singh

Wang

et al. 2023

Biochar

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“…The ammonia monooxygenase subunit A (AOA) and ammoniaoxidizing bacteria (AOB) were amplified by PCR using Arch-amoAF/Arch-amoAR and amoA-1F/amoA-2R [29] primers. The amplicon library was paired-end sequenced on an Illumina HiSeq 2500 System sequencing platform (Illumina Inc., San Diego, CA, USA) according to the standard protocols [30].…”

Section: Sampling and Measurementmentioning

confidence: 99%

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

Ding

Sung-Bum

et al. 2022

Sustainability

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Ammonia volatilization is an important nitrogen loss pathway in the paddy field ecosystem which leads to low nitrogen-utilization efficiency and severe atmospheric pollution. To reveal the influence and the mechanism of biochar application on ammonia volatilization from paddy fields under controlled irrigation, field experiments were conducted in the Taihu Lake Basin in China. The experiment consisted of three levels of biochar application (0, 20, and 40 t·ha−1) and two types of irrigation management (controlled irrigation and flood irrigation). Increasing ammonia volatilization occurred after fertilization. Biochar application reduced the cumulative ammonia volatilization from controlled-irrigation paddy fields, compared with non-biochar treatment. The cumulative ammonia volatilization in controlled-irrigation paddy fields with 40 t·ha−1 biochar application was reduced by 12.27%. The decrease in ammonia volatilization was related to the change in soil physical and soil physical–chemical properties and soil microbial activities. The high biochar application (40 t·ha−1) increased the NH4+-N content in soil (p < 0.01) and soil solution (p <0.05), increased by 64.98% and 19.72%, respectively. The application also increased the soil urease activity (p < 0.01), and high biochar application (40 t·ha−1) increased soil urease activity by 33.70%. Ammonia volatilization from paddy fields was significantly correlated with the nitrogen concentration (p < 0.01) in the soil solution and soil urease activity (p < 0.05). Meanwhile, the abundance of ammonia monooxygenase subunit A (AOA) and ammonia-oxidizing bacteria (AOB) with biochar application under controlled irrigation showed an increasing trend with rice growth. The long-term application of biochar may have a relatively strong potential to inhibit ammonia volatilization. In general, the combined application of controlled irrigation and biochar provides an eco-friendly strategy for reducing farmland N loss and improving paddy field productivity.

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“…Furthermore, biochar has the potential to buffer soil pH, reducing fluctuations that can affect the number and movement of the microbes community [11,12]. Biochar can interact with soil organic matter, affecting its decomposition rate and changing the carbon cycle dynamics in soil [13]. Biochar's ability to increase the soil's water-holding capacity [14] prevents faster moisture loss.…”

Section: Introductionmentioning

confidence: 99%

Effect of biochar in soil on microbial diversity: a meta-analysis

Adirianto,

Bachtiar

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The diversity, structure, and behavior of soil microbes communities, which are crucial to the breakdown of organic matter, cycling of nutrients, and general health of the soil, can be impacted by biochar. This study uses a meta-analysis approach to examine how biochar affects soil microbial diversity, and it anticipates that the results will take the form of a summary of the information that has already been published in journals. This study presents a meta-analysis of 24 articles published between 2018 and 2023 that reported biochar’s effect on soil microbial diversity and richness. Alpha diversity indexes such as Shannon, Simpson (Diversity index), Chao1, and ACE (Richness Index) were measured as parameters, as well as the operational taxonomic units (OTUs) count. The levels of biochar dosage varied from 0 to 50% w/w. Simpson (0.546), the OTUs (0.473), Chao1 (0.227), Shannon (0.125), and ACE (0.056) had the most significant effect sizes for the biochar (Hedges’d), with the majority of the values impact sizes being on the right. According to aggregate-driven tree analysis, the type of biochar, application rate, use of the soil, and length of the experiment all play a significant role in how biochar affects soil microbial diversity. In conclusion, adding biochar requires considering biochar application rates and type to improve microbes’ diversity.

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Biochar improved soil health and mitigated greenhouse gas emission from controlled irrigation paddy field: Insights into microbial diversity

Cited by 51 publications

References 61 publications

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

Effect of biochar in soil on microbial diversity: a meta-analysis

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