Stabilization of soil organic matter in Luvisols under the influence of various tree species in temperate forests

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 8, 2025

Abstract Tree species through aboveground biomass and roots are a key factors influencing the quality quantity of soil organic matter. Our study aimed to determine stability matter in Luvisols under influence five different tree species. The areas were located 25 km north Krakow, southern Poland. included - Scots pine ( Pinus sylvestris L.), European larch Larix decidua Mill.), pedunculate oak Quercus robur beech Fagus sylvatica L.) hornbeam Carpinus betulus L.). Forest stands growing same conditions (Luvisols) with similar geological material (loess) grain size selected for study. We evaluated labile heavy fractions (SOM). Additionally, basic physicochemical properties (pH, carbon nitrogen content, base cation content) determined samples. results our showed that soils coniferous characterized by higher content free light fraction (C fLF ) occluded oLF compared deciduous Similar relationships found (N ). Higher C MAF N contents recorded influenced carbon, cations positively correlated fraction. PCA analysis confirmed connection research shows avoiding single-species conifer introducing admixtures species, which increase SOM, is justified forest management. selection suitable will provide greater stand contribute more accumulation soil.

Language: Английский

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Soil carbon and nitrogen contents in forest soils are related to soil texture in interaction with pH and metal cations

Geoderma, Journal Year: 2023, Volume and Issue: 441, P. 116746 - 116746

Published: Dec. 13, 2023

The aim of this study was to better understand how soil carbon (C) and nitrogen (N) contents the C:N ratio are related texture, pH, exchangeable aluminum calcium in forest soils. For purpose, we studied 1992 temperate boreal soils located all over Sweden. We measured organic C N as well aluminum, calcium, pH layer three depth increments mineral (down 65 cm), analyzed relationship between element contents, their interactions. Soil concentration were negatively pH. on average 2.6 times higher very acidic (pH ≤ 4.0) than with > 5.0, uppermost 10 cm soil. In contrast, varied much less particularly layer, but texture. 2.3 clayey fine silty sandy soils, while only 1.85 (in cm). Differences concentrations compared largest class 5.0 smallest 4.0. Furthermore, both positively correlated soil, these correlations stronger coarse-textured fine-textured addition, layer. conclusion, our results show that more strongly concentration, likely due effects microbial respiration. texture which is high charge density N, gives a affinity adsorb surfaces. seems play an important role sorptive stabilization matter

Language: Английский

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Electrostatic coupling and water bridging in adsorption hierarchy of biomolecules at water–clay interfaces

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(7)

Published: Feb. 8, 2024

Clay minerals are implicated in the retention of biomolecules within organic matter many soil environments. Spectroscopic studies have proposed several mechanisms for biomolecule adsorption on clays. Here, we employ molecular dynamics simulations to investigate these hydrated adsorbate conformations montmorillonite, a smectite-type clay, with ten varying chemistry and structure, including sugars related cellulose hemicellulose, lignin-related phenolic acid, amino acids different functional groups. Our modeling captures biomolecule–clay biomolecule–biomolecule interactions that dictate selectivity competition interlayer nanopore trapping, which determine experimentally by nuclear magnetic resonance (NMR) X-ray diffraction, respectively. Specific structures important facilitating electrostatic attraction Van der Waals energies underlying hierarchy adsorption. Stabilized network direct water-bridged hydrogen bonds, favorable drive this whereby positively charged side chains preferentially adsorbed negatively clay surface compared carboxylate-rich aromatics acids. With divalent metal cations, our model illustrate cation bridging carboxylate-containing surface, thus explaining cation-promoted from experimental data. Adsorption experiments mixture reveal selective inhibition adsorption, attributes pairing is more energetically than complex. In sum, findings highlight chemical structural features can inform hypotheses predicting at water–clay interfaces.

Language: Английский

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The role of Ca-bridged organic matter in an alkaline soil, as revealed by multimodal chemical imaging

Geoderma, Journal Year: 2025, Volume and Issue: 456, P. 117256 - 117256

Published: March 20, 2025

Language: Английский

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Coapplication of humic acid and gypsum affects soil chemical properties, rice yield, and phosphorus use efficiency in acidic paddy soils

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 5, 2025

This study investigated the effects of humic acid (HA), flue gas desulfurization gypsum (FG), and their combined application on soil chemical properties, rice yield, phosphorus use efficiency (PUE), agronomic (PAE) during production in acidic paddy soil, which has not been previously studied. A greenhouse experiment was conducted a completely randomized block design with four treatments, including control (no amendments), HA (975 kg ha−1), FG (636 plus FG. increased pH; cation exchange capacity (CEC); total concentrations P, Ca, S; exchangeable Ca S. Additionally, maximized P uptake, PUE, PAE. alone whereas coapplication organic carbon (TOC), CEC, available S, However, application, both HA, failed to increase PAE owing lower uptake by plants. Therefore, is sustainable management practice for soils, must be carefully considered, as it produces disappointing effects.

Language: Английский

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The Relationship Between Organic Carbon and Ca in the Profile of Luvisols: A Case Study of a Long-Term Experiment in Pulawy, Poland

Agriculture, Journal Year: 2025, Volume and Issue: 15(6), P. 598 - 598

Published: March 11, 2025

The aim of this study was to determine the impact multi-year variations in nitrogen fertilisation (N) and farmyard manure application (FYM) two 4-year crop rotations, A B—which differed primarily terms their organic matter management systems (A: poor vs. B: enrichment)—on changes content calcium soil carbon at three horizons Luvisols, on dynamics these over past 40 years. Mineral N found affect movement Ca profiles both rotations. Most accumulated layer >55 cm total similar rotations; however, a correlation analysis revealed stronger relationship between enriched-cropping system (rotation B) compared poor-organic-matter A). In 0–30 layer, coefficient r = 0.52 rotation B, while A, it lower 0.23. deeper layers, weakened or became non-significant. Under climatic conditions Poland, where phenomenon nutrient leaching into profile is prevalent, extremely important manage nutrients sustainable way order limit loss. predominantly sandy texture topsoil (0–30 cm) Luvisols prevents any significant enrichment Corg, even very long period time, i.e., more than

Language: Английский

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Description of representative “in-situ” soil profiles in northwestern Tunisia

Discover Soil., Journal Year: 2025, Volume and Issue: 2(1)

Published: May 7, 2025

Abstract Soil profiling is important for understanding soil evolution in space and time its ability to deliver ecosystem services. It reflects the soil's physical, chemical, biological, along with management history. As a fundamental step assessing health, it helps determine soil’s potential provision of services suitability various agricultural land-use applications. allows classification types across different regions, contributing mapping enabling informed decisions sustainable land management. This study describes classifies four profiles Tunisia using WRB system. The main areas are Reference Groups (RSG) mainly defined by diagnostic horizons, qualifiers used provide additional information about characteristics. analyzed Luvisol, Cambisol, Vertisol, Fluvisol each exhibiting distinct morphological properties. Luvisol Cap Negro (northern coast) moderately fertile but vulnerable erosion, necessitating protection measures. Cambisol Oued Zarga continental area) supports field crops faces threats such as compaction which can be mitigated reduced tillage providing cover after harvest. Vertisol Béja area), characterized high clay shrink-swell activity, cultivated winter cereals, where appropriate irrigation practices help manage stability. Lastly, Meliz (north-western benefits from fertility due alluvial deposits requires careful water erosion. By detailed insights, this contributes deepen our on classification, use planning Tunisia.

Language: Английский

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Soil organic and inorganic carbon interactions under tillage and cover cropping determine potential for carbon accumulation in temperate, calcareous soils

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 247, P. 106369 - 106369

Published: Nov. 29, 2024

Language: Английский

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Model of U and 226Ra uptake by Spergularia rubra (L.) J. Presl & C. Presl in an area affected by Cu ore mining

Journal of Radioanalytical and Nuclear Chemistry, Journal Year: 2024, Volume and Issue: 333(11), P. 5761 - 5775

Published: Aug. 9, 2024

Abstract Spergularia rubra (L.) J. Presl & C. has a mycorrhizal resistance that leads to increased uranium uptake. The results show 35% of the 238 U is retained in carbonate fraction and 59% residual or non-reactive fraction. 226 Ra shows different pattern with an average association 19% organic matter fraction, 10% compounds remaining 71% relationships between activity concentrations soil fractions were found be statistically representative fractions, respectively.

Language: Английский

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Anthropic dark soils horizons in western Siberian taiga: origin, soil chemistry and sustainability of organic matter

Geoderma, Journal Year: 2024, Volume and Issue: 452, P. 117101 - 117101

Published: Nov. 16, 2024

Language: Английский

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