Latitudinal patterns and drivers of plant lignin and microbial necromass accumulation in forest soils: Disentangling microbial and abiotic controls

Soil Biology and Biochemistry, Год журнала: 2024, Номер 194, С. 109438 - 109438

Опубликована: Апрель 17, 2024

Язык: Английский

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Exploration and Empirical Study on Spatial Distribution of SOC at the Core Area in Coastal Tamarix Forests’ Inland Side of Changyi National Marine Ecological Area

Forests, Год журнала: 2025, Номер 16(1), С. 169 - 169

Опубликована: Янв. 17, 2025

The forest soil carbon pool plays a vital role in terrestrial ecosystems, being of great significance for maintaining global balance, regulating the cycle, and facilitating ecological restoration. Shandong Changyi Marine Ecological Special Protection Area is only state-level marine special protection area China with tamarisk as main object protection, it largest continuous best preserved natural distribution on mainland coast China. Compared to other forested areas, research spatial SOC at core coastal Tamarix forests’ inland side appears be relatively scarce. Based this, this paper takes National Zone, located southern Laizhou Bay, subject, based potassium dichromate oxidation-external heating, one-way ANOVA, Bonferroni methods, analyzing content forests. yielded following conclusions: (1) surface layer (0–10 cm) contributes significantly total within 0–60 cm depth, accounting least 31% shows notable accumulation. (2) combined subsurface layers (10–20 accounts 50% indicating dominance these two storage. (3) decreases depth all six sampling points range, marked drop from 0–10 10–20 cm. (4) One-way ANOVA multiple comparisons reveal that affects distribution, particularly between 20–30 (p < 0.001), high robustness statistical significance. (5) Horizontally, 0 m 45% lower than 2 layer. 0–20 fluctuates distance shrub trunk, while 30–60 low stable, minimal variations depth. In addition, study found protected common ecosystem. future, scientific restoration projects management methods should used improve soil’s storage sink capacity. These findings not validate patterns SOC’s wetlands but also provide basis assessment formulation measures wetlands.

Язык: Английский

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Bacterial necromass carbon of inland wetlands is regulated by bacterial diversity and community composition while fungal necromass carbon is mainly affected by community composition

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115860 - 115860

Опубликована: Фев. 1, 2025

Язык: Английский

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Earthworm gut's potential positive impact on carbon cycle by influencing carbohydrate metabolism and microbial genome size

Fundamental Research, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Medium molecular weight carbon fractions of DOM: Driving soil microbial community differentiation and soil organic carbon sequestration

Agriculture Ecosystems & Environment, Год журнала: 2025, Номер 389, С. 109688 - 109688

Опубликована: Апрель 18, 2025

Язык: Английский

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Contribution of microbial necromass to soil organic carbon in profile depths exhibited opposite patterns across ecosystems: A global meta-analysis

Soil Biology and Biochemistry, Год журнала: 2025, Номер unknown, С. 109842 - 109842

Опубликована: Май 1, 2025

Язык: Английский

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Variations in source-specific soil organic matter components across 32 forest sites in China

Carbon Research, Год журнала: 2024, Номер 3(1)

Опубликована: Авг. 12, 2024

Abstract Forest soils store substantial amounts of carbon in various soil organic matter (SOM) components due to high plant litter inputs and active microbial turnover. However, the variations plant- microbial-derived SOM surface subsurface forest across a wide geographic scale remain poorly understood. This study investigated from aboveground belowground fungal bacterial necromass (soil 0–5 cm ) 5–10 32 sites China analyzed their relationships with climate edaphic factors. Compared , exhibited lower content cutin biomarker concentration but higher concentrations lignin phenols. Higher mean annual precipitation led suberin biomarkers respectively. was associated plant-derived biomarkers, oxidation degrees, increased necromass-derived amino sugars sites, highlighting pivotal role stabilization. Additionally, both decreased increasing mineral weathering sites. These insights improve understanding environmental drivers source-specific storage soils. Graphical

Язык: Английский

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Influence of soil organic carbon fractions on the soil priming effect under different vegetation restoration modes

Soil Use and Management, Год журнала: 2024, Номер 40(4)

Опубликована: Окт. 1, 2024

Abstract The soil priming effect is a key mechanism influencing carbon (C) cycling processes between the forest organic (SOC) pool and atmosphere. Different vegetation restoration modes have different SOC compositions, it not clear whether such differences affect effect. Therefore, we selected from six typical Platycladus orientalis (PO), Pinus sylvestris (PS), Quercus acutissima (QA), shrub (SH) wasteland (WL) in rocky mountainous areas of northern China measured properties, microbial communities, necromass (MNC), fractions content decreased order PO (21.33 g kg −1 ), PS (22.00 QA (13.67 SH (13.33 ) WL (10.33 trends mineral‐associated (MAOC) fungal (FNC) were same as those content. was greater both forests shrublands than wastelands, with greatest occurring forests, where reached 159.91 mg CO 2 ‐C after 30 days incubation, which 1.4 times that WL. mainly determined by difference MAOC In addition, C/N ratio bacterial community diversity also indirectly affected MNC fractions. Overall, afforestation increased content, contribution mineral conservation, increasing This theoretical foundation supports enhancement sequestration capacity implementing various future.

Язык: Английский

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Effects of Wildfire on Soil CO2 Emission and Bacterial Community in Plantations

Microorganisms, Год журнала: 2024, Номер 12(8), С. 1666 - 1666

Опубликована: Авг. 13, 2024

In order to study the effects of wildfires on soil carbon dioxide (CO2) emissions and microbial communities in planted forests, Pinus massoniana Lamb. Cunninghamia lanceolata (Lamb.) Hook. forests were selected as research subjects. Through a culture test with 60 days indoor constant temperature, physical chemical properties, organic mineralization, components, enzyme activity, community structure changes two plantations after fire analyzed. The results showed that significantly reduced CO2 from by 270.67 mg·kg−1 470.40 mg·kg−1, respectively, exhibiting greatest reduction compared unburned soils. Bioinformatics analysis revealed abundance Proteobacteria decreased 6.00% 4.55%, wildfires. Additionally, redundancy indicated significant positive correlation between emissions, suggesting decrease may inhibit emissions. exhibited increase available nutrients inhibition activities wildfire. more, indicating stronger adaptive capacity environmental following summary, wildfire led most pronounced thereby mitigating region.

Язык: Английский

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The Fungal Community Structure Regulates Elevational Variations in Soil Organic Carbon Fractions in a Wugong Mountain Meadow

Journal of Fungi, Год журнала: 2024, Номер 10(11), С. 772 - 772

Опубликована: Ноя. 6, 2024

Soil organic carbon (SOC) fractions are vital intrinsic indicators of SOC stability, and soil fungi the key drivers cycling. However, variations in along an elevational gradient mountain meadows role fungal community regulating these largely unknown, especially subtropical areas. In this study, elevation experiment (with experimental sites at 1500, 1700, 1900 m) was set up a

Язык: Английский

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