Biochar improves soil organic carbon stability by shaping the microbial community structures at different soil depths four years after an incorporation in a farmland soil DOI Creative Commons
Ruiling Ma,

Xiulan Wu,

Zhiwei Liu

et al.

Current Research in Environmental Sustainability, Journal Year: 2023, Volume and Issue: 5, P. 100214 - 100214

Published: Jan. 1, 2023

Soil organic carbon (SOC), mineralization and microbial community structures were investigated at different depths of farmland soils 4 years after a single biochar amendment. Biochar increased SOC 0-20cm (10.7%) 20-40cm (24.9%). Mineralization decreased with depth further 12.3% (0-20cm), 8.5% (20-40cm) 30.5% (40-60cm) Subsoils selected for oligotrophs (e.g., Chloroflexi, Acidobacteria) associated lower rates limited copiotrophs Proteobacteria, Ascomycota) which exhibit higher respiration rates. enhanced in topsoil restricted all depths. This demonstrates how increases stability by changing

Language: Английский

Effects of tillage on soil organic carbon and crop yield under straw return DOI
Xintan Zhang, Jie Wang, Xiangyan Feng

et al.

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 354, P. 108543 - 108543

Published: May 5, 2023

Language: Английский

Citations

61
Drivers of microbially and plant‐derived carbon in topsoil and subsoil DOI

Weigen Huang,

Yakov Kuzyakov, Shuli Niu

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(22), P. 6188 - 6200

Published: Sept. 21, 2023

Abstract Plant‐ and microbially derived carbon (C) are the two major sources of soil organic matter (SOM), their ratio impacts SOM composition, accumulation, stability, turnover. The contributions key factors defining plant microbial C in along profile not well known. By leveraging nuclear magnetic resonance spectroscopy biomarker analysis, we analyzed three types using regional‐scale sampling combined these results with a meta‐analysis. Topsoil (0–40 cm) was rich carbohydrates lignin (38%–50%), whereas subsoil (40–100 contained more proteins lipids (26%–60%). proportion increases, while decreases content. decrease rate to plant‐derived (C M:P ) content 23%–30% faster topsoil than regional study had high potential stabilize through intensive transformations necromass formation. Plant input mean annual temperature were main topsoil, fungi‐to‐bacteria clay influencing . Combining meta‐analysis, highlighted contribution litter up 1‐m depth elucidated regulating long‐term preservation.

Language: Английский

Citations

58
The Deep Soil Organic Carbon Response to Global Change DOI
Caitlin Hicks Pries, Rebecca Ryals, Biao Zhu

et al.

Annual Review of Ecology Evolution and Systematics, Journal Year: 2023, Volume and Issue: 54(1), P. 375 - 401

Published: Aug. 22, 2023

Over 70% of soil organic carbon (SOC) is stored at a depth greater than 20 cm belowground. A portion this deep SOC actively cycles on annual to decadal timescales and sensitive global change. However, responses change likely differ from surface because biotic controls cycling become weaker as mineral predominate with depth. Here, we synthesize the current information drivers warming, shifting precipitation, elevated CO 2 , land use cover Most can only be hypothesized few studies measure soils, even fewer experiments manipulate soils. We call scientists incorporate soils into their manipulations, measurements, models so that response accounted for in projections nature-based climate solutions terrestrial feedbacks

Language: Английский

Citations

50
Carbon sequestration in the subsoil and the time required to stabilize carbon for climate change mitigation DOI Creative Commons
Carlos A. Sierra, Bernhard Ahrens, Martin A. Bolinder

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(1)

Published: Jan. 1, 2024

Soils store large quantities of carbon in the subsoil (below 0.2 m depth) that is generally old and believed to be stabilized over centuries millennia, which suggests sequestration (CS) can used as a strategy for climate change mitigation. In this article, we review main biophysical processes contribute storage mathematical models represent these processes. Our guiding objective whether process understanding soil movement vertical profile help us assess persistence at timescales relevant Bioturbation, liquid phase transport, belowground inputs, mineral association, microbial activity are contributing formation profiles, represented using diffusion-advection-reaction paradigm. Based on simulation examples measurements from radiocarbon profiles across biomes, found advective diffusive transport may only play secondary role profiles. The difference between root inputs decomposition seems primary determining shape with depth. Using transit time new show small travel through horizons longer than 50 years, implying activities promote CS must take into consideration very long term.

Language: Английский

Citations

22
Ascomycota and Basidiomycota fungal phyla as indicators of land use efficiency for soil organic carbon accrual with woody plantations DOI Creative Commons
L. Manici, F. Caputo, Flavio Fornasier

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111796 - 111796

Published: Feb. 29, 2024

As soil fungi are major players in the carbon accumulation process, two main fungal degraders topsoil, Ascomycetes and Basidiomycetes, were investigated as indicators of land use effectiveness increasing function. The study focused on organic content increase a 20-year short rotation forest cycle with broadleaf woody plantations compared to nearby arable cropping system. Total fungi, Ascomycota Basidiomycota, quantified terms DNA copy number, specific probes using SYBR® Green I dye QuantStudio™ 3D digital PCR system (dPCR). Previously, next generation sequencing analysis general primer confirmed that Basidiomycota most represented phyla community composition significantly differed between treatments. A range key enzyme activities for C-cycle also assessed. (TOC), microbial biomass term dsDNA increased soil. TOC wood species, Salix Robina gave greatest (+30 20 % respectively), followed by Populus (+12), highly correlated showing same trend. three four times (average 3144 n copies µl−1 DNA) (1419 µl−1); almost absent (av. 94n µl−1) five six 490 µl−1). ascomycetes strongly TOC, whereas basidiomycetes did not. These findings showed represent largest portion agricultural soils even after 20-years they can be taken processes. Therefore, this suggests joining quantity topsoil Ascomycota:Basidiomycota ratio seems good option when setting regional strategies improving C accrual farmland short-term afforestation.

Language: Английский

Citations

18
Agricultural subsoil microbiomes and functions exhibit lower resistance to global change than topsoils in Chinese agroecosystems DOI
Ziheng Peng, Marcel G. A. van der Heijden, Yu Liu

et al.

Nature Food, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Language: Английский

Citations

3
Organic carbon accumulation and microbial activities in arable soils after abandonment: A chronosequence study DOI Creative Commons
Jie Zhou, Tingting Sun, Lingling Shi

et al.

Geoderma, Journal Year: 2023, Volume and Issue: 435, P. 116496 - 116496

Published: May 12, 2023

Increased plant carbon (C) input into the soils after cropland abandonment results in not only C accumulation, but also higher microbial activities and consequently faster organic matter decomposition. We investigated link between soil accumulation properties a chronosequence (0–65 years) of post-agricultural self-restoration Luvisols - dominating type worldwide. Microbial biomass (MBC) enzyme increased top (0–20 cm) during 37-year period self-restoration. Accumulation was than at earlier stages (0–22 because fast growth induced by labile litter components. The response activity more sensitive to land use changes compared that C. Activities enzymes responsible for cycle nitrogen (N) phosphorus (P) cycles least up 37 years abandonment, indicating adaptations high with wide C/N C/P ratios. Similarly, β-xylosidase solely which reached similar secondary forest 65 years, due recalcitrant age. demand caused bacterial portion community (based on PLFA composition), turn, resulted lower ratio. Enzyme stoichiometry revealed microorganisms were limited N topsoil years. Overall, quantity quality inputs, changed restoration, regulated production, offering profound comprehension ecosystem succession.

Language: Английский

Citations

34
Long-term maize and pea intercropping improved subsoil carbon storage while reduced greenhouse gas emissions DOI
Lu Yang, Yue Luo,

Binglin Lu

et al.

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 349, P. 108444 - 108444

Published: March 7, 2023

Language: Английский

Citations

32
Soil carbon losses due to priming moderated by adaptation and legacy effects DOI
Marcus Schiedung, Axel Don, Michael H. Beare

et al.

Nature Geoscience, Journal Year: 2023, Volume and Issue: 16(10), P. 909 - 914

Published: Oct. 1, 2023

Language: Английский

Citations

32
Soil organic carbon, total nitrogen stocks and CO2 emissions in top- and subsoils with contrasting management regimes in semi-arid environments DOI Creative Commons
Chukwuebuka Christopher Okolo,

Girmay Gebresamuel,

Amanuel Zenebe

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Jan. 20, 2023

This study aims to investigate soil organic carbon (SOC) and total nitrogen (TN) contents stocks, CO2 emissions selected properties in croplands, grazing lands, exclosures forest lands of semi-arid Ethiopia. Sampling was done at 0-30, 30-60 60-90 cm depths concentration stocks SOC, TN were determined using standard routine laboratory procedures. There variations distribution SOC stock over 90 depth across land use types locations, decreasing from topsoils subsoil, with average values ranging 48.68 Mg C ha-1 4.80 N Hugumburda cropland 303.53 24.99 Desa'a respectively. Forest sequestered significant higher stock, depth, compared other types. In Hugumburda, the conversion resulted a loss 9.04 2.05 ha-1, respectively, an increase emission 33.16 7.52 yr-1, The establishment 10 years (Geregera) 6 (Haikihelet) on degraded increased by 13% 37%

Language: Английский

Citations

24