Synergistic Promotion of Particulate and Mineral-Associated Organic Carbon Within Soil Aggregates After 10 Years of Organic Fertilization in Wheat-Maize Systems DOI Creative Commons

Jing Li,

Huijun Wu,

Xiaojun Song

et al.

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1722 - 1722

Published: Oct. 20, 2024

How different fertilization practices modify soil organic carbon (SOC) sequestration is still unclear. Our study aimed to evaluate the changes in SOC stocks and their physical fractions after 10 years of inorganic fertilization. Five treatments were established under a wheat-maize system Northern China: control (CK), chemical fertilizer (F), straw plus (SF), manure (MF), (SMF). The results showed that rate at 0–20 cm depth decreased following order: SMF (1.36 Mg C/ha/yr) > MF (1.13 SF (0.72 F (0.15 CK (−0.25 C/ha/yr). values indicated returning application important measures achieve “4 per 1000” target, was more effective strategy. high input only maintained initial level not powerful C-farming practice. A minimum 4.93 C/ha/yr required keep storage. associated with small macroaggregate (0.25–2 mm) most sensitive indicator for bulk SOC. In addition, accumulation SMF, MF, mainly occurred occluded particulate C (oPOC) macroaggregates, indicating protection macroaggregates played predominant role sequestration. also displayed higher mineral (mSOC) aggregates than treatments. transformation oPOC towards mSOC fraction exogenous further shifted into stable pools aggregates. conclusion, these findings confirmed stabilization, highlighting combination strategy + had best effect.

Language: Английский

Changes in the composition of soil organic matter caused by organic and conventional management in the long term DOI
Hugo Felipe da Silva,

Paloma Viana Ferreira de Sousa,

Maria Eugênia Ortiz Escobar

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 124018 - 124018

Published: Jan. 8, 2025

Language: Английский

Citations

0
The Role of Forest Conversion and Agroecological Practices in Enhancing Ecosystem Services in Tropical Oxisols of the Amazon Basin DOI Open Access
Tancredo Souza, Gislaine dos Santos Nascimento, Diego Silva Batista

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 740 - 740

Published: April 25, 2025

This study evaluates the effectiveness of agroecological practices—organic fertilization and biofertilization—in enhancing ecosystem services in agroforestry pasture systems. A field experiment was conducted over three years, comparing these practices to a control treatment natural as reference. Soil chemical, physical, biological parameters were assessed, including soil organic carbon (SOC), microbial respiration, root density, gene abundances key groups (Archaea, Bacteria, Fungi). Organic resulted significant increase SOC, phosphorus, biomass, indicating improved structure fertility. Biofertilization showed selective effects, promoting archaeal abundance but reducing bacterial fungal diversity. Seasonal variation influenced nutrient cycling, with buffering against dry-season declines activity availability. Aboveground dry biomass litter deposition highest ecosystem, followed by treatments Despite improvements under management, consistently maintained superior quality resilience. The findings highlight that inputs diversified cropping systems enhance health do not fully replicate ecological benefits undisturbed forests. In conclusion, provide viable alternatives mitigate degradation sustain tropical Oxisols. emerges most effective strategy, fostering long-term fertility dynamics. However, continued research is needed optimize for greater resilience sustainability Amazonian agroecosystems.

Language: Английский

Citations

0
ORGANIC FRACTIONS, MICROBIAL BIOMASS CARBON, AND THEIR INTERRELATIONSHIPS WITH STRUCTURAL ATTRIBUTES IN DIFFERENT LAND USES DOI Creative Commons
Geisiane Xavier de Matos, Jeane Cruz Portela, Joaquim Emanuel Fernandes Gondim

et al.

Engenharia Agrícola, Journal Year: 2025, Volume and Issue: 45(spe1)

Published: Jan. 1, 2025

ABSTRACT Soil organic matter is an indicator of soil functionality in semi-arid regions, and the study components, along with biological structural attributes, reflects management techniques aids agroecosystem management. In this scenario, aimed to evaluate interrelations between fractions, microbial biomass carbon (MBC), glomalin (GEF) attributes different land uses Chapada do Apodi plateau, Brazil. The was conducted banana, papaya, pasture, native forest areas. Disturbed undisturbed samples were collected at depths 0.00–0.10 m 0.10–0.20 determine organic, biological, attributes. results analyzed using multivariate statistical analysis, which identified three factors a total accumulated variance 90.19%. Papaya banana cultivation areas distinguished by carbon, labile non-labile carbon. characterized high GEF (10.21 8.91 mg/g) MBC (280.00 225.45 µg/g C). pasture area showed signs degradation, indicated index (79.52 33.31%), (2.32 2.20 mg/g), (123.64 61.82 Land input, MBC, contributed maintenance agroecosystems, whereas pastureland more susceptible degradation.

Language: Английский

Citations

0
Compost derived from olive mill cake: Effects on isohumic soil quality based on humic acids characterization DOI Creative Commons

Saoussan Masmoudi,

Wadii Abid,

Khaled Medhioub

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(16), P. e36456 - e36456

Published: Aug. 1, 2024

The compost effects on soil organic matter (SOM) stability were evaluated. Manure at 10 % ratio and %, 20 40 ratios (v/v) added to the their compared unamended control after 90-days of greenhouse-experiment. Humic acids (HA) fulvic (FA) extracted from two different soil-sample layers 0-15 15-30 cm depth. C

Language: Английский

Citations

1
Planting Enhances Soil Resistance to Microplastics: Evidence from Carbon Emissions and Dissolved Organic Matter Stability DOI
Qi Wang, Weitao Liu, Qixing Zhou

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Microplastics (MPs) have become a global hotspot due to their widespread distribution in recent years. MPs frequently interact with dissolved organic matter (DOM) and microbes, thereby influencing the carbon fate of soils. However, role plant presence regulating MPs-mediated changes DOM microbial structure remains unclear. Here, we compared mechanisms soil response 3 common nonbiodegradable absence or radish (Raphanus sativus L. var. radculus Pers) plants. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) analysis revealed that reduced chemodiversity biodiversity (DOM). enhanced degradation lignin-like compounds stability. Comparative showed caused less disturbance composition metabolism planted than unplanted soil. In soil, stimulated fermentation while upregulating photoautotrophic activity enhancing system The rhizosphere effect mitigated MPs-induced CO2 emissions. Overall, our study highlights crucial effects maintaining ecosystem stability under microbe-DOM-pollutant interactions, which provides theoretical basis for predicting resistance, resilience, transitions upon exposure anthropogenic source.

Language: Английский

Citations

1
Synergistic Promotion of Particulate and Mineral-Associated Organic Carbon Within Soil Aggregates After 10 Years of Organic Fertilization in Wheat-Maize Systems DOI Creative Commons

Jing Li,

Huijun Wu,

Xiaojun Song

et al.

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1722 - 1722

Published: Oct. 20, 2024

How different fertilization practices modify soil organic carbon (SOC) sequestration is still unclear. Our study aimed to evaluate the changes in SOC stocks and their physical fractions after 10 years of inorganic fertilization. Five treatments were established under a wheat-maize system Northern China: control (CK), chemical fertilizer (F), straw plus (SF), manure (MF), (SMF). The results showed that rate at 0–20 cm depth decreased following order: SMF (1.36 Mg C/ha/yr) > MF (1.13 SF (0.72 F (0.15 CK (−0.25 C/ha/yr). values indicated returning application important measures achieve “4 per 1000” target, was more effective strategy. high input only maintained initial level not powerful C-farming practice. A minimum 4.93 C/ha/yr required keep storage. associated with small macroaggregate (0.25–2 mm) most sensitive indicator for bulk SOC. In addition, accumulation SMF, MF, mainly occurred occluded particulate C (oPOC) macroaggregates, indicating protection macroaggregates played predominant role sequestration. also displayed higher mineral (mSOC) aggregates than treatments. transformation oPOC towards mSOC fraction exogenous further shifted into stable pools aggregates. conclusion, these findings confirmed stabilization, highlighting combination strategy + had best effect.

Language: Английский

Citations

0