Unraveling the relationship between soil carbon-degrading enzyme activity and carbon fraction under biogas slurry topdressing

Journal of Environmental Management, Год журнала: 2024, Номер 356, С. 120641 - 120641

Опубликована: Март 21, 2024

Язык: Английский

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Long‐term successive biochar application increases plant lignin and microbial necromass accumulation but decreases their contributions to soil organic carbon in rice–wheat cropping system

GCB Bioenergy, Год журнала: 2024, Номер 16(6)

Опубликована: Апрель 29, 2024

Abstract Biochar application is widely recognized as an effective approach for increasing soil organic carbon (SOC) and mitigating climate change in agroecosystems. However, the effects of biochar on net accumulations relative contributions different SOC sources remain unclear. Here, we explored plant‐derived (PDC) microbial necromass C (MNC) a 10‐year experimental rice–wheat rotation field receiving four intensities (0, 2.25, 11.5, 22.5 t ha −1 each crop season), using phospholipid fatty acids (PLFAs), lignin phenols amino sugars biomarkers biomass, PDC MNC, respectively. Our results showed that increased content stock by 32.6%–203% 26.4%–145%, Higher (11.5 ) pH, total nitrogen (TN), phosphorus (TP), SOC/TN, root biomass. In addition, higher enhanced bacterial, fungal, Plant MNC contents significantly increased, whereas their to decreased with increase rates due disproportionate SOC. Fungal had greater contribution than bacterial necromass. The fungal/bacterial from 2.56 2.26 rates, because abundances bacteria fungi indicated PLFAs under rates. Random forest analyses revealed TP, SOC/TN were main factors controlling plant accumulation. Structural equation modeling stimulating accumulation was primarily biomass phenols. Overall, our findings suggest increases two but decreases paddy soils.

Язык: Английский

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Biological soil conditioner with reduced rates of chemical fertilization improves soil functionality and enhances rice production in vegetable-rice rotation

Applied Soil Ecology, Год журнала: 2023, Номер 195, С. 105242 - 105242

Опубликована: Дек. 30, 2023

Язык: Английский

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Long-term straw return increases fungal residual contribution to soil microaggregate nitrogen pool: An eco-enzymatic stoichiometric study

Soil and Tillage Research, Год журнала: 2024, Номер 244, С. 106278 - 106278

Опубликована: Авг. 29, 2024

Язык: Английский

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Linking microbial metabolism and ecological strategies to soil carbon cycle function in agroecosystems

Soil and Tillage Research, Год журнала: 2025, Номер 251, С. 106562 - 106562

Опубликована: Апрель 2, 2025

Язык: Английский

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