Linking bacterial life strategies with soil organic matter accrual by karst vegetation restoration

Soil Biology and Biochemistry, Год журнала: 2022, Номер 177, С. 108925 - 108925

Опубликована: Дек. 20, 2022

Язык: Английский

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A stoichiometric approach to estimate sources of mineral‐associated soil organic matter

Global Change Biology, Год журнала: 2023, Номер 30(1)

Опубликована: Дек. 9, 2023

Abstract Mineral‐associated soil organic matter (MAOM) is the largest, slowest cycling pool of carbon (C) in terrestrial biosphere. MAOM primarily derived from plant and microbial sources, yet relative contributions these two sources to remain unresolved. Resolving this issue essential for managing modeling responses environmental change. Microbial biomarkers, particularly amino sugars, are primary method used estimate versus MAOM, despite systematic biases associated with estimates. There a clear need independent lines evidence help determine importance MAOM. Here, we synthesized 288 datasets C/N ratios particulate (POM), biomass across soils forests, grasslands, croplands. source residues that form whereas POM direct precursor We then stoichiometric approach—based on two‐pool, isotope‐mixing models—to proportional contribution residue (POM) pool. Depending assumptions underlying our approach, inputs accounted between 34% 47% pool, contributed 53%–66%. Our results therefore challenge existing hypothesis dominant constituents conclude biogeochemical theory models should account multiple pathways formation, required resolve where when formation.

Язык: Английский

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Increasing plant species diversity enhances microbial necromass carbon content but does not alter its contribution to soil organic carbon pool in a subtropical forest

Soil Biology and Biochemistry, Год журнала: 2023, Номер 187, С. 109183 - 109183

Опубликована: Сен. 21, 2023

Язык: Английский

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Pathways of soil organic carbon accumulation are related to microbial life history strategies in fertilized agroecosystems

The Science of The Total Environment, Год журнала: 2024, Номер 927, С. 172191 - 172191

Опубликована: Апрель 6, 2024

Язык: Английский

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Temperature effects on soil mineral-protected organic carbon are regulated by lithology in humid subtropical forests

CATENA, Год журнала: 2025, Номер 250, С. 108772 - 108772

Опубликована: Янв. 26, 2025

Язык: Английский

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Divergent contribution of particulate and mineral-associated organic matter to soil carbon in grassland

Journal of Environmental Management, Год журнала: 2023, Номер 344, С. 118536 - 118536

Опубликована: Июнь 29, 2023

Язык: Английский

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Altered energy dynamics of multitrophic groups modify the patterns of soil CO2 emissions in planted forest

Soil Biology and Biochemistry, Год журнала: 2023, Номер 178, С. 108953 - 108953

Опубликована: Янв. 12, 2023

Язык: Английский

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Bacteria life-history strategies and the linkage of soil C-N-P stoichiometry to microbial resource limitation differed in karst and non-karst plantation forests in southwest China

CATENA, Год журнала: 2023, Номер 231, С. 107341 - 107341

Опубликована: Июнь 27, 2023

Язык: Английский

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Lithological Controls on Soil Aggregates and Minerals Regulate Microbial Carbon Use Efficiency and Necromass Stability

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Microbial carbon (C) use efficiency (CUE) drives soil C formation, while physical-chemical protection stabilizes subsequent microbial necromass, both shaped by aggregates and minerals. Soils inherit many properties from the parent material, yet influence of lithology associated geochemistry on CUE necromass stabilization remains unknow. Here, we quantified in well-aggregated bulk soils crushed aggregates, as well mineral-associated organic matter fraction, originating carbonate-containing (karst) carbonate-free (clastic rock, nonkarst) materials along a broad climatic gradient. We found that aggregate crushing significantly increased karst nonkarst soils. Additionally, compared to soils, calcium-rich macroaggregate stability decreased ratio oligotrophic copiotrophic taxa, leading reduction CUE. Moreover, was negatively with iron (hydr)oxides attributed greater abundance higher pH. Despite negative effects aggregation minerals CUE, particularly these concurrently showed through organo-mineral associations Consequently, (i) bedrock mediates stability; (ii) balancing minerals' dual roles diminishing enhancing is vital for optimizing preservation.

Язык: Английский

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Stoichiometric and bacterial eco-physiological insights into microbial resource availability in karst regions affected by clipping-and-burning

Journal of Environmental Management, Год журнала: 2024, Номер 370, С. 122925 - 122925

Опубликована: Окт. 15, 2024

Язык: Английский

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