Long-term organic fertilizer substitution increases rice yield by improving soil properties and regulating soil bacteria

Geoderma, Journal Year: 2021, Volume and Issue: 404, P. 115287 - 115287

Published: June 18, 2021

Language: Английский

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Changes in plant inputs alter soil carbon and microbial communities in forest ecosystems

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(10), P. 3426 - 3440

Published: Jan. 29, 2022

Global changes can alter plant inputs from both above- and belowground, which, thus, may differently affect soil carbon microbial communities. However, the general patterns of how input them in forests remain unclear. By conducting a meta-analysis 3193 observations 166 experiments worldwide, we found that alterations aboveground litter and/or root had profound effects on communities forest ecosystems. Litter addition stimulated organic (SOC) pools biomass, whereas removal litter, roots or (no inputs) decreased them. The increased SOC under suggested benefit sequestration despite accelerated decomposition. Unlike removal, no altered particulate carbon, all detrital treatments did not significantly change mineral-associated carbon. In addition, contrastingly community, with shifting it toward fungi, bacteria. Furthermore, responses biomass to positively correlated rate total input, suggesting quantity is critical controller belowground processes. Taken together, these findings provide insights into understanding productivity allocation affects cycling, functioning ecosystems global changes. Future studies take full advantage existing detritus should focus relative roles forming its fractions.

Language: Английский

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Nitrogen loading enhances phosphorus limitation in terrestrial ecosystems with implications for soil carbon cycling

Functional Ecology, Journal Year: 2022, Volume and Issue: 36(11), P. 2845 - 2858

Published: Sept. 10, 2022

Abstract Increased human‐derived nitrogen (N) loading in terrestrial ecosystems has caused widespread ecosystem‐level phosphorus (P) limitation. In response, plants and soil micro‐organisms adopt a series of P‐acquisition strategies to offset N loading‐induced P Many these impose costs on carbon (C) allocation by micro‐organisms; however, it remains unclear how affect C cycling. Herein, we review the literature effects limitation outline conceptual overview plant microbial may organic (SOC) stabilization decomposition ecosystems. Excessive input significantly enhances biomass production, acidification, produces litterfall with high N/P ratios, which can aggravate Long‐term cause alter their functional traits increase acquisition. Plants release carboxylate exudates phosphatases, modify root morphological traits, facilitate formation symbiotic associations mycorrhizal fungi stimulate abundance P‐mineralizing P‐solubilizing micro‐organisms. Releasing phosphatases could accelerate SOC decomposition, whereas changing (e.g. an fine length) contribute higher stabilization. relative abundances bacteria mining decay, decrease use efficiency subsequently lower sequestration. The trade‐offs between different under should be among future research priorities due cascading impacts storage. Quantifying ecosystem thresholds for adaption increased is important because are effective when below threshold. Moreover, understanding response at levels native availability provide insight divergent across sites Altogether, explicitly considered Earth System Models generate more realistic predictions Read free Plain Language Summary this article Journal blog.

Language: Английский

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Evidence and attribution of the enhanced land carbon sink

Nature Reviews Earth & Environment, Journal Year: 2023, Volume and Issue: 4(8), P. 518 - 534

Published: July 25, 2023

Language: Английский

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Meta-analysis shows that plant mixtures increase soil phosphorus availability and plant productivity in diverse ecosystems

Nature Ecology & Evolution, Journal Year: 2022, Volume and Issue: 6(8), P. 1112 - 1121

Published: June 27, 2022

Language: Английский

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Soil ecological stoichiometry synchronously regulates stream nitrogen and phosphorus concentrations and ratios

CATENA, Journal Year: 2023, Volume and Issue: 231, P. 107357 - 107357

Published: July 1, 2023

Language: Английский

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A review and meta-analysis of mitigation measures for nitrous oxide emissions from crop residues

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 828, P. 154388 - 154388

Published: March 8, 2022

Crop residues are of crucial importance to maintain or even increase soil carbon stocks and fertility, thereby address the global challenge climate change mitigation. However, crop can also potentially stimulate emissions greenhouse gas nitrous oxide (N2O) from soils. A better understanding how mitigate N2O due residue management while promoting positive effects on is needed reconcile opposing balance agroecosystems. Here, we combine a literature review meta-analysis identify assess measures for mitigating application agricultural fields. Our study shows that removal, shallow incorporation, incorporation with C:N ratio > 30 avoiding crops terminated at an immature physiological stage, leading significantly lower emissions. Other practices such as timing interactions fertilisers less conclusive. Several evaluated mitigation implied negative side-effects yield, organic storage, nitrate leaching and/or ammonia volatilization. We identified additional strategies potential reduce without strong side-effects, which require further research. These are: a) treatment before field application, e.g., conversion into biochar anaerobic digestate, b) co-application nitrification inhibitors N-immobilizing materials compost high ratio, paper waste sawdust, c) use obtained mixtures. provides scientific basis be developed over coming years sustainability agroecosystems though adequate management.

Language: Английский

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Long‐term nitrogen deposition inhibits soil priming effects by enhancing phosphorus limitation in a subtropical forest

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(14), P. 4081 - 4093

Published: April 25, 2023

It is widely accepted that phosphorus (P) limits microbial metabolic processes and thus soil organic carbon (SOC) decomposition in tropical forests. Global change factors like elevated atmospheric nitrogen (N) deposition can enhance P limitation, raising concerns about the fate of SOC. However, how N affects priming effect (PE) (i.e., fresh C inputs induced changes SOC decomposition) forests remains unclear. We incubated soils exposed to 9 years experimental a subtropical evergreen broadleaved forest with two types 13 C-labeled substrates contrasting bioavailability (glucose cellulose) without amendments. found decreased total biomass P, suggesting enhanced limitation. In unamended soils, significantly inhibited PE. contrast, adding increased PE under by larger extent for cellulose (PEcellu ) than glucose (PEglu ). Relative or solely, alleviated suppression C-acquiring enzymes deposition, whereas attenuated stimulation acid phosphatase (AP) deposition. Across treatments, PEglu as enzyme activity increased, PEcellu AP decreased. This suggests inhibits through varying mechanisms depending on substrate bioavailability; is, limitation regulates affecting growth investment acquisition, acquisition. These findings provide new insights impacted loading, expected quality affect long-term regulation

Language: Английский

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Particulate organic carbon is more sensitive to nitrogen addition than mineral-associated organic carbon: A meta-analysis

Soil and Tillage Research, Journal Year: 2023, Volume and Issue: 232, P. 105770 - 105770

Published: May 20, 2023

Language: Английский

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Limiting Resources Define the Global Pattern of Soil Microbial Carbon Use Efficiency

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Abstract Microbial carbon (C) use efficiency (CUE) delineates the proportion of organic C used by microorganisms for anabolism and ultimately influences amount sequestered in soils. However, key factors controlling CUE remain enigmatic, leading to considerable uncertainty understanding soil retention predicting its responses global change factors. Here, we investigate patterns estimate stoichiometric modeling surface soils natural ecosystems, examine associations with temperature, precipitation, plant‐derived nutrient availability. We found that is determined most limiting resource among these four basic environmental resources within specific climate zones (i.e., tropical, temperate, arid, cold zones). Higher common arid corresponds limitations water, input, while lower observed tropical temperate widespread limitation nutrients (e.g., nitrogen or phosphorus) soil. The contrasting led an apparent increase increasing latitude. resource‐specific dependence implies high latitudes environments may retain less future, as warming increased precipitation can reduce CUE. In contrast, oligotrophic low retention, could be concurrent anthropogenic inputs. findings underscore importance suggest asymmetric across

Language: Английский

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