Soil organic matter, nitrogen and pH driven change in bacterial community following forest conversion

Liu, Ting; Wu, Xin; Li, Huangwei; Alharbi, Hattan A.; Wang, Jun; Dang, Peng; Chen, Xiaoyong; Kuzyakov, Yakov; Yan, Wende

doi:10.1016/j.foreco.2020.118473

Cited by 81 publications

(56 citation statements)

References 84 publications

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“…5a ), RDA1 and RDA2 explained 23.9% and 8.8% of the total variation, respectively, and the results showed that NH 4 + -N and pH had a major influence on the bacterial community ( p <0.05). A previous study also found bacterial community clusters in a soil environment that appeared to be differentiated by pH (Liu et al 2020 ). In the western region (Fig.…”

Section: Resultsmentioning

confidence: 66%

The preliminary evaluation of differential characteristics and factor evaluation of the microbial structure of rural household toilet excrement in China

Gao

Yang

et al. 2021

Environ Sci Pollut Res

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Recent studies on the microbial community composition of human excrement after rural household toilet treatment are unclear regarding the effects and risks of using recycled products as fertilizers in agriculture. In this study, we used Illumina high-throughput sequencing to investigate the microbial community structure of the excrement from 50 Chinese rural household toilets on a spatial scale, and we evaluated the impact of select geochemical factors on the bacterial and fungal communities in the human excrement. Multivariate analysis showed that there was a significant spatial differentiation of the human excrement in microbial communities after all toilet treatments. Twenty dry toilet samples and thirty septic tank samples had similar bacterial (Firmicutes, Proteobacteria, Actinobacteria, and Bacteroidetes) and fungal phyla (Ascomycota and Basidiomycota), differing only in the proportions of the microorganisms. For both dry toilet samples and septic tank samples, the pH and ammonium nitrogen were found to be the major driving forces affecting the changes in bacterial community structures ( p <0.05), while there was no correlation found for the fungal community with environmental factors in China ( p >0.05), except in the northern regions, where the total phosphorus was found to be significantly correlated with the fungal community ( p <0.05). Network analysis confirmed that NH 4 + -N had the most significant impact on the content of pathogens. Certain pathogens were still detected after toilet treatment, such as Streptococcus , Bacteroides , Aspergillus , and Chrysosporium , and the proportion of potential pathogenic bacteria in dry toilets was higher than that in septic tanks, suggesting that septic tanks were better than dry toilets in treating human excrement. These results provide an ecological perspective for understanding the large-scale geographic distribution of household excrement microbial communities in rural areas and for improving human excrement treatment technologies and avoiding the risks of agricultural applications. Supplementary Information The online version contains supplementary material available at 10.1007/s11356-021-13779-9.

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Section: Resultsmentioning

confidence: 66%

The preliminary evaluation of differential characteristics and factor evaluation of the microbial structure of rural household toilet excrement in China

Gao

Yang

et al. 2021

Environ Sci Pollut Res

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“…6b). Previous research showed that soil C and N is mainly derived from litter returning to the soil after plant death [18][19][20]. The lower soil temperature along the altitudinal gradient reduced the rate of the litter decomposition, inhibiting the C and N inputs.…”

Section: Altitudinal Patterns In Soil C N and P Contents At Sunny Andmentioning

confidence: 99%

“…Simultaneously, the rich species composition promoted the number of plant remains, which was the main source of soil C in forest ecosystem [18,31]. Therefore, soil C:P ratio was also rich.…”

Section: Altitudinal Patterns In Soil C N and P Contents At Sunny Andmentioning

confidence: 99%

Effects of slope aspect on altitudinal pattern of soil C:N:P stoichiometry in alpine forest of Tibet

Guo

He-ping

et al. 2021

E3S Web Conf.

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Knowledge of altitudinal patterns in soil C, N and P distribution is important for understanding biogeochemical processes in mountainous forests, yet the influence of slope aspects on soil stoichiometry has been largely neglected in previous studies. In this paper, a total number of 150 topsoil samples at four altitudes (3700, 3900, 4100, 4380 m a.s.l.) on sunny and shady slopes of Sygera mountains in the Southeastern Tibet were collected. Soil C, N and P contents, and pH, were measured. Soil temperature, moisture and richness of plant species were investigated at each sampling site. The results showed that: 1) in sunny slope, soil C, N and P concentrations increased with the increase in altitude, whereas soil C:N, C:P, and N:P decreased along the altitudinal gradient on s. Soil moisture was the main regulator of soil nutrition and stoichiometric ratios. 2) In shady slope, soil C and N contents had no significant difference along the altitudinal gradient except the higher values at low altitude, whereas soil P increased first and then decreased. Soil C:N increased with the increase in altitude, whereas C:P and N:P decreased first and then increased. Soil temperature and species richness were the main factors influencing soil nutrition and stoichiometric ratios. 3) Decoupling of soil C:N:P stoichiometry was observed in shady slope owing to changes in soil pH and temperature. 4) The rich contents of soil C and P were observed at two slopes along the altitudinal gradient, and high capacity of N supply existed at the topsoil in shady slope. These results suggested that slope aspect plays an important role in shaping the altitudinal pattern of soil C:N:P stoichiometry in mountainous forests.

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“…The conversion from natural forest to plantations is accompanied by changes in the identity and diversity of host tree species and soil properties, thereby affecting the fungal community and tropical-guild composition (Mcguire et al, 2015). Compared with extensive studies on bacterial communities (Kerfahi, Tripathi, Dong, Go, & Adams, 2016;Liu et al, 2020), only a few studies have evaluated the response of soil fungi to forest conversion. In addition, microbial activity is a valuable indicator of soil quality (Bünemann et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Soil quality and C-S-R fungal communities in monoculture plantations after conversion from subtropical forest

Liu

et al. 2021

Preprint

Self Cite

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Intensive clear cutting of natural forests and conversion to monoculture plantations are ongoing worldwide, leading to degradation of soil quality and microbial functions. Here, we compared soil quality index (SQI) and fungal community in a natural forest (Forest) and four 5-year-old monoculture plantations, including Camellia oleifera (Oil), Amygdalus persica (Peach), Myrica rubra (Berry) and Cunninghamia lanceolata (Fir), in a subtropical region of China. After conversion, soil pH rose up to 0.31, but organic carbon, total nitrogen, sucrase, acid protease, glutaminase and phosphatase activities decreased by 83%, 59%, 43%, 31%, 64%, 66% and 77%, respectively, in the plantations. Correspondingly, the SQI dropped by 65%. High-throughput sequencing of the ITS1 region demonstrated an increase in α-diversity and a striking difference in β-diversity following conversion. Changes in the dominant fungal taxa following forest conversion to plantations was interpreted by Grime’s C-S-R life history framework. Conversion increased the fungal groups with stress-tolerant (S) and ruderal (R) strategies - mainly copiotrophic saprophytes, such as Ascomycota and Zygomycota, but decreased the fungal groups with competitor (C) strategies - mainly oligotrophic saprophytes and mycorrhizal fungi, such as Basidiomycota. Genera affiliated to those phyla including Pseudophialophora, Rhytisma increased, but Russula decreased. Redundancy analysis and structural equation modeling indicated that the diversity and composition of fungal communities changed with soil quality degradation, which were mainly driven by increased soil pH, decreased available carbon and nutrients (N, P), and related enzymes activities.

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Soil organic matter, nitrogen and pH driven change in bacterial community following forest conversion

Cited by 81 publications

References 84 publications

The preliminary evaluation of differential characteristics and factor evaluation of the microbial structure of rural household toilet excrement in China

The preliminary evaluation of differential characteristics and factor evaluation of the microbial structure of rural household toilet excrement in China

Effects of slope aspect on altitudinal pattern of soil C:N:P stoichiometry in alpine forest of Tibet

Soil quality and C-S-R fungal communities in monoculture plantations after conversion from subtropical forest

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