Microbial community responses to biochar addition when a green waste and manure mix are composted: A molecular ecological network analysis

Qiu, Xiuwen; Zhou, Guomei; Zhang, Jiabao; Wang, Wei

doi:10.1016/j.biortech.2018.12.001

Cited by 120 publications

(36 citation statements)

References 24 publications

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“…The different results indicated the important function of woody peat to absorb and fix the NH 4 + -N, because of its porous structure and rich of humus acid (Chang et al, 2019b). Similar results could be observed when biochar was used during composting (Qiu et al, 2019). More NH 4 + -N in treatments T3 and T5 than S3 and S5 (shown in Table 3), suggested high aeration rate helped to transfer NH 4 + -N into NH 3 ventilation, so that more NH 3 ventilation were observed in Fig.5 and Table 2.…”

Section: Resultssupporting

confidence: 84%

“…While it is similar that Firmicutes (class of Bacilli and Clostridia ) and Proteobacteria (class of Alphaproteobacteria, Deltaproteobacteria and Gammaproteobacteria ) were the main categories in the later time of composting. High proportions of Actinobacteria in the samples of T1 and T3 suggested that the addition of corn straw or saw dust may facilitate the growth of Actinobacteria and accelerate the degradation of lignocelluloses during the maturity stage, similar results were observed and proved in Qiu et al (2019).…”

Section: Resultssupporting

confidence: 71%

“…6(B). As Qiu et al (2019) indicated, the kind of manure and biochar addition would both influence the bacteria community, especially when the materials were composted different duration. While it is similar that Firmicutes (class of Bacilli and Clostridia ) and Proteobacteria (class of Alphaproteobacteria, Deltaproteobacteria and Gammaproteobacteria ) were the main categories in the later time of composting.…”

Section: Resultsmentioning

confidence: 99%

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Effects of carbon-based additive and ventilation rate on nitrogen loss and microbial community during chicken manure composting

Chang

Liu

Chen

et al. 2020

Preprint

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1 2 3 4 Effects of carbon-based additive and ventilation rate on nitrogen loss and microbial 5 community during chicken manure composting 6 7 Ruixue telephone number: +0086 010 62734299 2 17Abstract：Aerobic composting is a sustainable method for recycling of chicken manure, while its 18 unsuitable porosity and carbon to nitrogen ratio limit the oxygen supply, which must result in high 19 nitrogen loss because of anaerobic micro-zones in the materials. Treatments with five carbon-based 20 additives and two ventilation rates (0.18 and 0.36 L‧min -1 ‧kg -1 DM) were set in chicken manure 21 composting, to investigate their effects on biodegradation process, ammonia (NH 3 ) emission, 22nitrogen loss, physiochemical properties and microbial community. The additives and ventilation 23 rates influenced the CO 2 production from the 2 nd week, meanwhile varied the physiochemical 24 parameters all the process. No inhibitory effect on the maturity were observed in all treatments. 25 With woody peat as additive, the NH 3 emission amount and nitrogen loss rate were shown as 15.86 26 mg and 4.02 %, when compared with 31.08-80.13 mg and 24.26-34.24 % in other treatments. The 27 high aeration rate increased the NH 3 emission and nitrogen loss, which were varied with different 28 additives. The T-RFLP results showed that the additives and the ventilation rates changed the 29 microbial community, while the prominent microbial clones belonged to the class of Bacilli and 30 Clostridia (in the phylum of Firmicutes), and Alphaproteobacteria, Deltaproteobacteria and 31 Gammaproteobacteria (in the phylum of Proteobacteria). Bacillus spp. was observed to be the most 32 dominant bacteria in all the composting stages and treatments. We concluded that woody peat could 33 improve chicken manure composting more than other additives, especially on controlling nitrogen 34 loss. 0.18 L‧min -1 ‧kg -1 DM was suitable for chicken manure composting with different additives. 35 Keywords： Chicken manure; composting; carbon-based additive; ventilation rate; microbial 36 community 3 37

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Section: Resultssupporting

confidence: 84%

Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of carbon-based additive and ventilation rate on nitrogen loss and microbial community during chicken manure composting

Chang

Liu

Chen

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The different results indicated the important function of woody peat to absorb and fix the NH 4 + -N, because of its porous structure and richness of humus acid. Similar results could be observed when biochar was used during composting [39]. More NH 4 + -N in treatments T3 and T5 than S3 and S5 (shown in Table 3), suggested that the high aeration rate helped to transfer NH 4 + -N into NH 3 ventilation, so that more NH 3 ventilation was observed in Fig 5 and Table 2.…”

Section: Plos Onesupporting

confidence: 75%

Effects of carbon-based additives and ventilation rate on nitrogen loss and microbial community during chicken manure composting

et al. 2020

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Aerobic composting is a sustainable method for chicken manure recycling, while its unsuitable porosity and carbon to nitrogen ratio (C/N) may result in high nitrogen loss and incomplete composting. With the aim to investigate the effects of carbon-based additives and two ventilation rates on chicken manure composting and microbial community, two series of treatments were set up for chicken manure composting, in order to investigate their effects on the biodegradation process, ammonia (NH 3) emission, nitrogen loss, physiochemical properties and microbial community. The results showed that additives and ventilation rates set in the current study influenced the carbon dioxide (CO 2) production from the 2 nd week and also the physiochemical parameters during the entire process, while no inhibitory effect on the maturity were observed. With woody peat as additive, the NH 3 emission amount and nitrogen loss rate were shown as 15.86 mg and 4.02%, less than those in other treatments, 31.08-80.13 mg and 24.26-34.24%, respectively. The high aeration rate increased the NH 3 emission and nitrogen loss, which were varied when the additives were different. The terminal restriction fragment length polymorphism (T-RFLP) results showed that the additives and the ventilation rates changed the microbial community, while the prominent microbial clones belonged to the class of Bacilli and Clostridia (in the phylum of Firmicutes), and Alphaproteobacteria, Deltaproteobacteria and Gammaproteobacteria (in the phylum of Proteobacteria). Bacillus spp. was observed to be the most dominant bacteria in all the composting stages and treatments. It was concluded that woody peat could improve chicken manure composting more than other additives, especially on reducing nitrogen loss, meanwhile 0.18 L�min-1 �kg-1 DM was suitable for various additives. Therefore, suitable additive and aeration rate could be used in practical application, which could significantly reduce nitrogen loss without influence on the compos maturity process.

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“…10 Principal component analysis (PCA) of the dominant genera occurring in soils treated with different concentrations of Cd (mean, n = 3; CK, 0 mg kg −1 ; T1, 1 mg kg −1 ; T2, 5 mg kg −1 ; T3, 25 mg kg −1 ; T4, 50 mg kg −1 ; T5, 75 mg kg −1 ; T6, 100 mg kg −1 ) conversion belowground and on the microbial ecology of soils. Proteobacteria plays an integral role in carbon cycle and mineralization of N-containing organic matter and tends to colonize nutrient-rich environments (Qiu et al 2019;Liang et al 2020). Alpha-, Beta-, and Gamma-proteobacteria can utilize aliphatic and aromatic compounds as carbon sources and degrade them into simpler forms (Liang et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Cadmium Pollution Impact on the Bacterial Community of Haplic Cambisols in Northeast China and Inference of Resistant Genera

Duan

Liu

Zhang

et al. 2020

J Soil Sci Plant Nutr

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Modern industry and agriculture has aggravated heavy metal pollution of soils, of which cadmium (Cd) is among the common most toxic and widely distributed pollutants. Bacteria are a major group of microorganisms and the most abundantly occurring in soils. In Northeastern China, many mining sites occur whose soils need reclamation and Cd pollution has commonly existed. Haplic Cambisols is the zonal forest soil here. Yet, how Cd contamination may affect the bacterial characteristics and chemical properties of Haplic Cambisols is still unknown. Here, we applied different concentrations of Cd contamination to Haplic Cambisols and monitored the resulting changes to bacterial community structure and diversity, as well as the general soil environments; we then inferred Cd-resistant bacteria to provide theoretical support for microbial remediation of Cdcontaminated Haplic Cambisols in Northeast China. Haplic Cambisols were treated with different concentrations of CdCl 2 solutions (0 [CK], 1, 5, 25, 50, 75, 100 mg kg −1 , respectively expressed as T1, T2, T3, T4, T5, and T6) and incubated for 50 days, and then bacterial community composition was identified, and the pH, organic matter, hydrolytic nitrogen, available phosphorus, potassium, and cadmium contents of the soils were measured. Adding higher concentrations of Cd usually significantly increased the richness and diversity of the bacterial community in Haplic Cambisols in terms of both species and abundance with the effects of some treatments being not significant, and this effect varied with Cd concentration. Applying Cd significantly influenced the bacterial community's structure and its metabolic functioning. Cd also influenced bacterial diversity via several key soil environmental factors, namely the pH, organic matter, and hydrolytic nitrogen contents. Pseudolabrys, Ralstonia, Reyranella, Afipia, Pelomonas, Rhizomicrobium, and Bradyrhizobium within Proteobacteria; Rhodanobacter from Bacteroidetes; and Nitrobacter within Nitrospirae were the main resistant bacteria. Higher concentrations of Cd increased the bacterial community richness and diversity of Haplic Cambisols, as well as the relative abundance of their main bacterial populations. The Cd-resistant genera were inferred, and relative abundances of Ralstonia, Bradyrhizobium, Rhizomicrobium, and Afipia were the highest.

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Microbial community responses to biochar addition when a green waste and manure mix are composted: A molecular ecological network analysis

Cited by 120 publications

References 24 publications

Effects of carbon-based additive and ventilation rate on nitrogen loss and microbial community during chicken manure composting

Effects of carbon-based additive and ventilation rate on nitrogen loss and microbial community during chicken manure composting

Effects of carbon-based additives and ventilation rate on nitrogen loss and microbial community during chicken manure composting

Cadmium Pollution Impact on the Bacterial Community of Haplic Cambisols in Northeast China and Inference of Resistant Genera

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