Effects 10 years elevated atmospheric CO2 on soil bacterial community structure in Sanjiang Plain, Northeastern China

Wu, Yun; Wang, He; Xu, Nan; Li, Jinbo; Xing, Junhui; Zou, Hongfei

doi:10.1007/s11104-021-05115-4

Cited by 5 publications

(2 citation statements)

References 81 publications

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“…At the family level, Subgroup 6, Micrococcaceae, Nitrosomonadaceae, KD4-96, and Gemmatimonadaceae were particularly common ( Fig 3 ). The prevalence of Subgroup 6 (10.66%) in cropland may be attributed to the high contents of OC fractions and the relatively neutral soil pH [ 42 ]. A high proportion of Micrococcaceae in CGS, CCS, and grassland soils is indicative of high carbon mineralization based on its degradation capabilities [ 43 ].…”

Section: Resultsmentioning

confidence: 99%

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

Cao

Liu

et al. 2023

PLoS ONE

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Conversion of curtilage land into cropland or grassland can have substantial effects on soil nutrition and microbial activities; however, these effects remain ambiguous. This is the first study to compare the soil organic carbon (SOC) fractions and bacterial communities in rural curtilage, converted cropland, and grassland compared with cropland and grassland. This study determined the light fraction (LF) and heavy fraction (HF) of organic carbon (OC), dissolved organic carbon (DOC), microbial biomass carbon (MBC), and the microbial community structure by conducting a high-throughput analysis. Curtilage soil had significantly lower OC content, the DOC, MBC, LFOC and HFOC of grassland and cropland soils were 104.11%, 55.58%, 264.17%, and 51.04% higher than curtilage soil averagely. Cropland showed notably high bacterial richness and diversity, with Proteobacteria (35.18%), Actinobacteria (31.48%), and Chloroflexi (17.39%) predominating in cropland, grassland, and curtilage soil, respectively. Moreover, DOC and LFOC contents of converted cropland and grassland soils were 47.17% and 148.65% higher than curtilage soil while MBC content was 46.24% lower than curtilage soil averagely. Land conversion showed more significant effects on microbial composition than land-use differences. The abundant Actinobacteria and Micrococcaceae population and the low MBC contents indicated a “hungry” bacterial state in the converted soil, whereas the high MBC content, Acidobacteria proportion, and relative abundance of functional genes in the fatty acid and lipid biosynthesis indicated a “fat” bacterial state in cropland. This study contributes to the improvement of soil fertility and the comprehension and efficient use of curtilage soil.

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Section: Resultsmentioning

confidence: 99%

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

Cao

Liu

et al. 2023

PLoS ONE

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“…Increased CO 2 may also alter community composition and diversity (Jia et al, 2020; Jin et al, 2020; Wang, Marsh, et al, 2017). These impacts of CO 2 on microbial community structure and function are likely occurring indirectly through changes in plant inputs, nitrogen availability, soil pH, and moisture (Deltedesco et al, 2020; Gao et al, 2020; Wu et al, 2021).…”

Section: Altered Resources and Soil Chemistrymentioning

confidence: 99%

A framework for soil microbial ecology in urban ecosystems

Nugent

Allison

2022

Ecosphere

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Nearly all ecosystems host diverse microbiomes that support vital ecosystem processes. At the same time, these ecosystems and their microbiomes are increasingly altered by human activities, particularly in highly managed urban environments. While microbial ecologists are beginning to understand the drivers of microbial assembly and the link between community structure and function in many ecosystems, few of these advances have been applied to urban ecosystems. In this synthesis, we review research on the urban soil microbiome and develop a framework to integrate soil microbial communities with urban ecosystem function. We identify disturbance, altered resources, and heterogeneity as key drivers through which human activities including urban development affect soils and their resident microorganisms. Steep environmental gradients in many urban systems present a unique opportunity to address fundamental questions in microbial ecology, such as how microbes respond to stress and how biogeochemical rates relate to microbial diversity and composition. Soil microbiomes in cities also provide ecosystem services and harms, making it crucial to understand how human activity drives those functions and the consequences for environmental and human health. We argue that much-needed integration across disturbance ecology, urban ecology, and microbial ecology will help generate practical and equitable strategies for managing ecosystem benefits in cities where most humans now live.

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China’s meadow grasslands: challenges and opportunities

Xin

Tang

et al. 2022

Plant Soil

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Effects 10 years elevated atmospheric CO2 on soil bacterial community structure in Sanjiang Plain, Northeastern China

Cited by 5 publications

References 81 publications

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

A framework for soil microbial ecology in urban ecosystems

China’s meadow grasslands: challenges and opportunities

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