Seasonal changes driving shifts in microbial community assembly and species coexistence in an urban river

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 167027 - 167027

Published: Sept. 17, 2023

Language: Английский

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Soil organic carbon loss decreases biodiversity but stimulates multitrophic interactions that promote belowground metabolism

Global Change Biology, Journal Year: 2023, Volume and Issue: 30(1)

Published: Dec. 22, 2023

Abstract Soil organic carbon (SOC) plays an essential role in mediating community structure and metabolic activities of belowground biota. Unraveling the evolution communities their feedback mechanisms on SOC dynamics helps embed ecology soil microbiome into cycling, which serves to improve biodiversity conservation management strategy under global change. Here, croplands with a gradient were used understand how metabolisms decomposition linked diversity, composition, co‐occurrence networks encompassing archaea, bacteria, fungi, protists, invertebrates. As decreased, diversity prokaryotes eukaryotes also but network complexity showed contrasting patterns: increased due intensified niche overlap, while that decreased possibly because greater dispersal limitation owing breakdown macroaggregates. Despite decrease stocks, capacity was enhanced as indicated by enzyme activity enzymatic stoichiometric imbalance. This could, turn, expedite loss through respiration, particularly slow‐cycling pool. The dominantly driven multitrophic negative (competitive predator–prey) associations, fostered stability metacommunity. Interestingly, abiotic conditions including pH, aeration, nutrient exhibited less significant role. Overall, this study reveals need for C resources across levels maintain functionality declining results loss. Our researchers highlight importance integrating biological processes models turnover, agroecosystem functioning face intensifying anthropogenic land‐use climate

Language: Английский

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Effects of sustainable agricultural practices on soil microbial diversity, composition, and functions

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 370, P. 109053 - 109053

Published: May 4, 2024

Language: Английский

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Mixed sowing improves plant and soil bacterial community restoration in the degraded alpine meadow

Plant and Soil, Journal Year: 2024, Volume and Issue: 499(1-2), P. 379 - 392

Published: Feb. 5, 2024

Language: Английский

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Forest-to-Cropland Conversion Reshapes Microbial Hierarchical Interactions and Degrades Ecosystem Multifunctionality at a National Scale

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(25), P. 11027 - 11040

Published: June 10, 2024

Conversion from natural lands to cropland, primarily driven by agricultural expansion, could significantly alter soil microbiome worldwide; however, influences of forest-to-cropland conversion on microbial hierarchical interactions and ecosystem multifunctionality have not been fully understood. Here, we examined the effects intratrophic cross-trophic further disclosed their underlying drivers at a national scale, using Illumina sequencing combined with high-throughput quantitative PCR techniques. The changed structure (including prokaryotic, fungal, protistan communities) while it did affect its alpha diversity. Both intrakingdom interkingdom networks revealed that interaction patterns generally tended be more modular resist environmental disturbance introduced conversion, but this was insufficient for maintain stability; hence, predation behaviors were still disturbed under such conversion. Moreover, key clusters declined during mainly because increased total phosphorus level, drove great degradation (by 207%) in cropland soils. Overall, these findings comprehensively implied negative agroecosystem, multifunctionality.

Language: Английский

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Land use intensity is a major driver of soil microbial and carbon cycling across an agricultural landscape

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 196, P. 109508 - 109508

Published: June 26, 2024

Soil carbon (C) storage is a critical ecosystem function that underpins human health and well-being. The acceleration of human-driven land use change, such as agricultural intensification, major driver soil C loss globally. Developing sustainable practices enhance productivity whilst protecting essential functions vital. microbiome has role in regulating biogeochemical cycling processes, including cycling. Examining the impacts intensity on enables us to assess potential effects long-term stocks. Using metagenomic DNA sequencing phospholipid fatty acid analysis, we investigated differences activity, diversity, associated with five contrasting uses across an landscape. covered gradient disturbance intensities included remnant native forest, regenerating bush, exotic plantation dryland pasture, irrigated pasture. We identified pronounced each use, diversity abundance microbial nitrogen (N) genes. Notably, intensive had significantly higher C-degrading genes, forest lowest Our findings suggest may increase functional mineralize C, potentially resulting greater respired CO2 into atmosphere. This research be used support development management promote persistence landscapes, protection fragments incorporation vegetation.

Language: Английский

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Effect of soil microbial community on ecosystem multifunctionality in an alpine grassland

CATENA, Journal Year: 2025, Volume and Issue: 249, P. 108714 - 108714

Published: Jan. 12, 2025

Language: Английский

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Spatiotemporal variations in the soil quality of agricultural land and its drivers in China from 1980 to 2018

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 892, P. 164649 - 164649

Published: June 3, 2023

Language: Английский

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Long-term cultivation reduces soil carbon storage by altering microbial network complexity and metabolism activity in macroaggregates

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 930, P. 172788 - 172788

Published: April 25, 2024

Language: Английский

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Afforestation alters soil microbial community composition and reduces microbial network complexity in a karst region of Southwest China

Land Degradation and Development, Journal Year: 2024, Volume and Issue: 35(8), P. 2926 - 2939

Published: March 19, 2024

Abstract Soil microbial community plays important roles in altering ecological processes and biogeochemical cycles ecosystems. However, little is known about how afforestation influences the diversity, composition, network of soil karst regions. In this study, samples were collected from one farmland (FL) three lands including bamboo forest (BA), landscape tree planting (LAT), orange orchard (ORO) a region Southwest China. The bacterial fungal communities characterized using high‐throughput sequencing approach, properties organic carbon, pH, water content, total available nutrient contents measured under different land use treatments. Results showed that conversion FL to BA LAT significantly reduced Shannon diversity community. At phylum level (top 10), genus 30), operational taxonomic units (OTUs) level, resulted significant changes nine phyla, 24 genera, 31.32% OTUs community, 13 11.62% number nodes, negative edges, connectivity, average degree, relative modularity decreased by 9.33%–18.66%, 47.98%–72.75%, 0.45%–5.93%, 14.73%–22.29%, 6.46%–23.50%, respectively, compared with FL. potassium phosphorus identified as key affecting Compared ORO, more obvious because higher carbon (13.48%) (27.18%). conclusion, changed compositions complexity regions, had stronger on than other These findings provide context necessary evaluate responses

Language: Английский

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