Indication of Natural Boreo-Continental Pine Sites Through Discrimination Analysis of the Soil Biochemical and Water-Holding Properties

Samec, Pavel; Volánek, Jiří; Bajer, Aleš

doi:10.2478/eko-2021-0004

Cited by 4 publications

(6 citation statements)

References 49 publications

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“…As a result, pine needles can effectively adsorb organic acids and have a slow effect on the soil. In addition, the weak acidity of pine needles can help reduce soil alkalinity, and the decomposition products can assist organic acids to exert chelation and eliminate soil salinity ( Samec et al., 2021 ). Owing to its powdered structure and weak acidity, grass charcoal can adsorb organic acids during the seedling stage of sweet sorghum and rapidly infiltrate the active layer of the root system to chelate with soil saline components, effectively regulating the soil pore space through its own low bulk density to improve soil structure ( Wang et al., 2020a ; Yang et al., 2021b ).…”

Section: Discussionmentioning

confidence: 99%

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor ‘Dochna’) by reducing salinity and increasing nutrient levels in coastal saline–alkaline soil

et al. 2023

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IntroductionIn coastal saline lands, organic matter is scarce and saline stress is high. Exploring the promotion effect of intervention with organic acid from biological materials on soil improvement and thus forage output and determining the related mechanism are beneficial to the potential cultivation and resourceful, high-value utilization of coastal mudflats as back-up arable land.MethodThree exogenous organic acids [humic acid (H), fulvic acid (F), and citric acid (C)] were combined with four kinds of biomass materials [cottonseed hull (CH), cow manure (CM), grass charcoal (GC), and pine needle (PN)] and applied to about 0.3% of medium-salt mudflat soil. The salinity and nutrient dynamics of the soil and the growth and physiological differences of sweet sorghum at the seedling, elongation, and heading stages were observed under different treatments to screen for efficient combinations and analyze the intrinsic causes and influencing mechanisms.ResultsThe soil salinity, nutrient dynamics, and forage grass biological yield during sweet sorghum cultivation in saline soils differed significantly (p < 0.05) depending on the type of organic acid–biomass composite applied. Citric acid–pine needle composite substantially reduced the soil salinity and increased the soil nutrient content at the seedling stage and improved the root vigor and photosynthesis of sweet sorghum by increasing its stress tolerance, allowing plant morphological restructuring for a high biological yield. The improvement effect of fulvic acid–pine needle or fulvic acid–cow manure composite was manifested at the elongation and heading stages.DiscussionCitric acid–pine needle composite promoted the growth of saline sweet sorghum seedlings, and the effect of fulvic acid–pine needle composite lasted until the middle and late stages.

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Section: Discussionmentioning

confidence: 99%

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor ‘Dochna’) by reducing salinity and increasing nutrient levels in coastal saline–alkaline soil

et al. 2023

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show abstract

“…As a result, pine needle can effectively adsorb organic acids and has a slow effect on the soil. In addition, the weak acidity of pine needle can help reduce soil alkalinity, and the decomposition products can assist organic acids to exert chelation and eliminate soil salinity (Samec et al 2021). Owing its powdered structure and weak acidity, grass charcoal can adsorb organic acids during the seedling stage of sweet sorghum and rapidly in ltrate the active layer of the root system to chelate with soil saline components, effectively regulating the soil pore space through its own low bulk density to improve soil structure ).…”

Section: Discussionmentioning

confidence: 99%

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor 'Dochna') by reducing salinity and increasing nutrient level in coastal saline–alkaline soil

Yang¹,

Sun

Liu³

et al. 2022

Preprint

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Purpose In coastal saline lands, organic matter is scarce and saline stress is high. Exploring the promotion effect of intervention with organic acid from biological materials on soil improvement and thus forage output and determining the related mechanism. Methods Three exogenous organic acids (humic acid, fulvic acid, and citric acid) were combined with four kinds of biomass materials (cottonseed hull, cow manure, grass charcoal, and pine needle) and applied to about 0.3% of medium-salt mudflat soil. The salinity and nutrient dynamics of the soil and the growth and physiological differences of sweet sorghum at the seedling, elongation, and heading stages were observed under different treatments to screen for efficient combinations and analyze the intrinsic causes and influencing mechanisms. Results The soil salinity, nutrient dynamics, and forage grass biological yield during sweet sorghum cultivation in saline soils differed significantly (p < 0.05) depending on the type of organic acid–biomass composite applied. Citric acid–pine needle composite substantially reduced the soil salinity and increased the soil nutrient content at the seedling stage and improved the root vigor and photosynthesis of sweet sorghum by increasing its stress tolerance, allowing plant morphological restructuring for a high biological yield. The improvement effect of fulvic acid–pine needle or fulvic acid–cow manure composite was manifested at the elongation and heading stages. Conclusions Citric acid–pine needle composite promoted the growth of saline sweet sorghum seedlings, and the effect of fulvic acid–pine needle composite lasted until the middle and late stages.

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“…Ureases and phosphatases access shortcoming nitrogen and phosphorus substances under aerobic conditions in the presence of catalase (Zahir et al 2001). The A-horizons were also characterized gravimetrically to determine particle-size composition according to the USDA (Burt 2004), bulk (D d ) and specific (D s ) densities, water-holding capacity (WHC), porosity (P) and aeration (A) (Samec et al 2021).…”

Section: Soil Analysismentioning

confidence: 99%

“…Thus, soil correlations represent ecosystem property substitutions, where the lack of one quantity allows tree species occurrence due to the excess of another quantity along the margins of suitable sites (Ehrlich & Mooney 2018). Soil property substitutions cause differences between forest communities with the same dominant tree species on the one hand and between sites with different tree species on the other, despite the same soil group and relief (Samec et al 2021).…”

Section: Introductionmentioning

confidence: 99%

The effect of soil conditions on submountain site suitability for Norway spruce (Picea abies Karst.) in Central Europe

Samec¹,

Volánek²,

Holík³

et al. 2023

iForest

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Norway spruce (Picea abies [L.] Karst.) occurred rarely at submountain altitudes before reaching its present position as the most important economic tree species in Central Europe. Spruce cultivation outside of natural sites is under constant threat from harmful agents. In this study, we focused on the indication of potentially suitable planting sites for Norway spruce in areas of protected submountain (< 700 m a.s.l) populations using linear discriminant analysis (LDA) of soil properties in oak-beech, mixed and spruce stands in the territory of the Czech Republic. The soil A-horizon properties in mixed stands were more similar to those in spruce than in broadleaved stands; stand mixtures resulted in lower soil property separability than the localization of individual populations (57% and 85%, respectively). The suitable sites were defined by acid phosphomonoesterase > 151 µg hour -1 , soil porosity > 63%, aeration > 53%, bulk density < 0.86 g cm -3 , cation exchange capacity < 18 cmol + kg -1 , Corg< 9% and Ntot< 0.5% in clusters comprising the Bohemian highlands, North Bohemian rock cities and the Outer Western Carpathians. The LDA of soil properties offered a useful tool for assessing both naturalness and forest threats to support sustainable management.

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Indication of Natural Boreo-Continental Pine Sites Through Discrimination Analysis of the Soil Biochemical and Water-Holding Properties

Cited by 4 publications

References 49 publications

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor ‘Dochna’) by reducing salinity and increasing nutrient levels in coastal saline–alkaline soil

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor ‘Dochna’) by reducing salinity and increasing nutrient levels in coastal saline–alkaline soil

Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Sorghum bicolor 'Dochna') by reducing salinity and increasing nutrient level in coastal saline–alkaline soil

The effect of soil conditions on submountain site suitability for Norway spruce (Picea abies Karst.) in Central Europe

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