The content of mineral nitrogen in Histosols and its relationship with soil organic matter

Staugaitis, Gediminas; Šarka, Andrius

doi:10.13080/z-a.2020.107.002

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…The content of available forms of phosphorus (P 2 O 5 ) was determined according to the Egner–Riehm method (Egner et al, 1960). The concentration of available Mg was measured by spectrometric analysis (Staugaitis & Rutkauskiene, 2010). The substrate moisture was estimated after drying overnight at 105°C.…”

Section: Methodsmentioning

confidence: 99%

Functional diversity of microbial communities in herbaceous vegetation patches in coal mine heaps

Malicka,

Bierza,

Szalbot

et al. 2024

Land Degrad Dev

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Coal mine heaps represent unique novel environments, suitable for studying plant succession and its influence on the activity of microbes inhabiting the rhizosphere. Our aim was to verify if the functional diversity and catabolic activity of soil microorganisms would increase along with the plant succession from non‐vegetated and forbs‐dominated to grass‐dominated communities. The study was conducted on coal mine heaps located in Upper Silesia (Southern Poland), focusing on non‐vegetated patches, patches dominated by forbs–Tussilago farfara and Daucus carota (in the early stages of succession), and by grasses–Poa compressa and Calamagrostis epigejos (in later stages of primary succession). The catabolic activity and functional diversity of soil microbial communities were analyzed based on community‐level physiological profiles using BIOLOG EcoPlatesTM and the activity of dehydrogenase, alkaline phosphatase, acid phosphatase, and urease. Our results showed that spontaneous vegetation on coal mine heaps strongly affects the physicochemistry of the substrate and the functional diversity of soil microbial communities. Grasses' rhizosphere was hosting more active and functional diversified microbial communities, while non‐vegetated and T. farfara‐vegetated patches were accompanied by a reduced development of soil microbiota. Furthermore, grasses were mainly associated with a substantial delivery of plant litter to the substrate, providing a source of carbon for microorganisms.

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Section: Methodsmentioning

confidence: 99%

Functional diversity of microbial communities in herbaceous vegetation patches in coal mine heaps

Malicka,

Bierza,

Szalbot

et al. 2024

Land Degrad Dev

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“…The content of available forms of phosphorus (P 2 O 5 ) was estimated according to the Polish Norm PN-R-04023:1996 based on the Egner-Riehm method. The available Mg (MgO) concentration was measured using the Schachtschabel method by extraction in 0.0125 M calcium chloride solution [40]. Exchangeable cations (K + , Na + ) were extracted with 1 M ammonium acetate at pH 7.0 [41].…”

Section: Substrate Physicochemical Analysesmentioning

confidence: 99%

The Effect of Plant Diversity and Soil Properties on Soil Microbial Biomass and Activity in a Novel Ecosystem

et al. 2023

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Plant–microbial relations have not yet been fully disclosed in natural or seminatural ecosystems, nor in novel ecosystems developing spontaneously on post-coal mine heaps. The aim of this study was to determine which factor, biotic (plant taxonomic diversity vs. plant functional diversity) or abiotic (physicochemical substrate parameters), affects the biomass of soil microbial communities the most, as well as soil in situ respiration in novel ecosystems. The study was carried out on unreclaimed plots selected according to four different combinations of taxonomic and functional plant diversity. Additionally, plots on a reclaimed heap served as a comparison between the two management types. The biomass of several soil microbial groups was analysed using phospholipid fatty acids profiles. We detected that soil microbial biomass was more impacted by abiotic parameters (explaining 23% of variance) than plant diversity (explaining 12% of variance). Particularly, we observed that substrate pH was the most important factor shaping microbial community biomass, as shown in the RDA analysis. The highest microbial biomass was found in plots with low taxonomic and functional diversity. This finding can be explained by the fact that these plots represented a more advanced phase of vegetation development in the early stages of plant succession.

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“…However, these studies were carried out only in mineral soil (sandy soil) and were focused only on their general agrochemical properties. Histosols, which are used for agriculture, have been insufficiently studied [37,39,40]. On the morphology of peat soil profile and organic matter changes after drainage and during the renaturalization process, particularly little attention has been paid.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Profile Genesis and Land Use of Histosol on Its Organic Substance Stability and Humic Acid Quality at the Molecular Level

et al. 2023

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This study is designed to evaluate soil organic matter (SOM) quality indicators: molecular indicators of dissolved organic matter (DOM) and hydrophobicity of humic acid (HA), distribution of quantity in humified and labile fractions of histosols during renaturalization. The aim is to determine the differences in the qualitative composition of humic acids at the molecular level, which are decided by the previous tillage and genesis, and to evaluate the impact of anthropogenization on the peat soil according to hydrophobicity, as well as to estimate the impact of soil genesis and removing peat layer. Soil samples were taken from the three Sapric Histosol (according to WRB2022) profiles and the 0–30 cm layer in three field replicates (Lithuania, Radviliskis mun.). Our study suggested that in the differently managed drained Sapric Histosol under renaturalization, the most significant changes occurred in the topsoil layer (0–30 cm), in which an increase in the content of SOM particles 106–2 µm in size. It is expedient to grow perennial grasses and legumes to maintain the soil organic carbon stability mobile humic acids to mobile fulvic acids ratio (MHA:MFA 0.83 to 0.86). An evaluation of the quality of HA (E4:E6) revealed their highest maturity in the unfertilized perennial grasses (3.88) and crop rotation (3.87) with grasses. The highest concentrations of hydrophilic groups (ratio of the C=O to O-H) were found in Sapric Histosol under deciduous hardwood forest (12.33). The lowest hydrophilicity (9.25 and 9.36) was of the crop rotation Sapric Histosol with removed peat layer. The most sustainable use of drained Sapric Histosol in the context of the sustainability and quality of its humus substances should be associated with the formation of perennial grass and clover grassland and the cultivation of deciduous hardwood. Therefore, the horizon forms on the top part of the profile, which protects deeper Histosolic material layers from its mineralization.

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The content of mineral nitrogen in Histosols and its relationship with soil organic matter

Cited by 3 publications

References 32 publications

Functional diversity of microbial communities in herbaceous vegetation patches in coal mine heaps

Functional diversity of microbial communities in herbaceous vegetation patches in coal mine heaps

The Effect of Plant Diversity and Soil Properties on Soil Microbial Biomass and Activity in a Novel Ecosystem

The Impact of Profile Genesis and Land Use of Histosol on Its Organic Substance Stability and Humic Acid Quality at the Molecular Level

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